audio-node-suite - npm Package Compare versions

Comparing version 0.9.8 to 0.9.9

lib/audio-node-suite.js

@@ -26,20 +26,22 @@ /*
 (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.AudioNodeSuite = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(_dereq_,module,exports){
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.gainTodBFS=exports.dBFSToGain=void 0;var dBFSToGain=function(o){return Math.pow(10,o/20)};exports.dBFSToGain=dBFSToGain;var gainTodBFS=function(o){return 20*Math.log10(o)};exports.gainTodBFS=gainTodBFS;
+"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function _defineProperties(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,_toPropertyKey(n.key),n)}}function _createClass(e,t,r){return t&&_defineProperties(e.prototype,t),r&&_defineProperties(e,r),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var n=r.call(e,t||"default");if("object"!==_typeof(n))return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.weightedAverage=exports.getFrequencyValue=exports.gainTodBFS=exports.ensureWithin=exports.dBFSToGain=exports.AnimationFrameTimer=void 0;var dBFSToGain=function(e){return Math.pow(10,e/20)};exports.dBFSToGain=dBFSToGain;var gainTodBFS=function(e){return 20*Math.log10(e)};exports.gainTodBFS=gainTodBFS;var getFrequencyValue=function(e,t,r){var n=e.sampleRate/2;return r[Math.round(t/n*r.length)]};exports.getFrequencyValue=getFrequencyValue;var ensureWithin=function(e,t,r){return e<t?e=t:e>r&&(e=r),e};exports.ensureWithin=ensureWithin;var weightedAverage=function(e,t,r,n){for(var i=e.length<n?e.length:n,o=0,a=0,u=0;u<=r;u++){var s=u+(i-r);o+=s*e[u],a+=s}if(!t)for(var l=r+1;l<i;l++){var f=l-(r+1);o+=f*e[l],a+=f}return o/=a};exports.weightedAverage=weightedAverage;var AnimationFrameTimer=function(){function e(t){var r=this;if(_classCallCheck(this,e),this.timer=null,void 0!==window){this.timer={repeat:!0};window.requestAnimationFrame(function e(){t(),r.timer.repeat&&window.requestAnimationFrame(e)})}else this.timer=setInterval(function(){return t()},1e3/60)}return _createClass(e,[{key:"clear",value:function(){void 0!==window?this.timer.repeat=!1:clearTimeout(this.timer)}}]),e}();exports.AnimationFrameTimer=AnimationFrameTimer;
 },{}],2:[function(_dereq_,module,exports){
 "use strict";function _toConsumableArray(e){return _arrayWithoutHoles(e)||_iterableToArray(e)||_unsupportedIterableToArray(e)||_nonIterableSpread()}function _nonIterableSpread(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}function _iterableToArray(e){if("undefined"!=typeof Symbol&&null!=e[Symbol.iterator]||null!=e["@@iterator"])return Array.from(e)}function _arrayWithoutHoles(e){if(Array.isArray(e))return _arrayLikeToArray(e)}function _createForOfIteratorHelper(e,t){var r="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!r){if(Array.isArray(e)||(r=_unsupportedIterableToArray(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var n=0,o=function(){};return{s:o,n:function(){return n>=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,i=!0,c=!1;return{s:function(){r=r.call(e)},n:function(){var e=r.next();return i=e.done,e},e:function(e){c=!0,a=e},f:function(){try{i||null==r.return||r.return()}finally{if(c)throw a}}}}function _unsupportedIterableToArray(e,t){if(e){if("string"==typeof e)return _arrayLikeToArray(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?_arrayLikeToArray(e,t):void 0}}function _arrayLikeToArray(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r<t;r++)n[r]=e[r];return n}function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function _defineProperties(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,_toPropertyKey(n.key),n)}}function _createClass(e,t,r){return t&&_defineProperties(e.prototype,t),r&&_defineProperties(e,r),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var n=r.call(e,t||"default");if("object"!==_typeof(n))return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeComposite=void 0;var AudioNodeComposite=_createClass(function e(t,r){if(_classCallCheck(this,e),"object"!==_typeof(t)||!(t instanceof AudioNode))throw new Error("input has to be a valid AudioNode");"object"!==_typeof(r)&&(r=t);var n=t.context.createGain();return n.connect(t),n._targets=[],n._bypass=!1,n._connect=n.connect,n.connect=function(){for(var e,t,o=arguments.length,a=new Array(o),i=0;i<o;i++)a[i]=arguments[i];return n._targets.push(a),n.dispatchEvent(new CustomEvent("connect-before",{detail:{target:a}})),t=n._bypass?n._connect.apply(n,a):(e=r).connect.apply(e,a),n.dispatchEvent(new CustomEvent("connect-after",{detail:{result:t,target:a}})),t},n._disconnect=n.disconnect,n.disconnect=function(){for(var e,t,o=arguments.length,a=new Array(o),i=0;i<o;i++)a[i]=arguments[i];return n.dispatchEvent(new CustomEvent("disconnect-before",{detail:{target:a}})),t=n._bypass?n._disconnect.apply(n,a):(e=r).disconnect.apply(e,a),n._targets=n._targets.filter(function(e){if(e.length!==a.length)return!0;for(var t=0;t<a.length;t++)if(e[t]!==a[t])return!0;return!1}),n.dispatchEvent(new CustomEvent("disconnect-after",{detail:{result:t,target:a}})),t},n.bypass=function(e){if(n._bypass!==e)if(n._bypass=e,n._bypass){n.dispatchEvent(new CustomEvent("bypass-enable-before")),n._disconnect(t);var o,a=_createForOfIteratorHelper(n._targets);try{for(a.s();!(o=a.n()).done;){var i,c=o.value;(i=r).disconnect.apply(i,_toConsumableArray(c)),n._connect.apply(n,_toConsumableArray(c))}}catch(e){a.e(e)}finally{a.f()}n.dispatchEvent(new CustomEvent("bypass-enable-after"))}else{n.dispatchEvent(new CustomEvent("bypass-disable-before"));var s,l=_createForOfIteratorHelper(n._targets);try{for(l.s();!(s=l.n()).done;){var u,y=s.value;n._disconnect.apply(n,_toConsumableArray(y)),(u=r).connect.apply(u,_toConsumableArray(y))}}catch(e){l.e(e)}finally{l.f()}n._connect(t),n.dispatchEvent(new CustomEvent("bypass-disable-after"))}},n});exports.AudioNodeComposite=AudioNodeComposite;
 },{}],3:[function(_dereq_,module,exports){
-"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeLimiter=exports.AudioNodeGain=exports.AudioNodeCompressor=void 0;var _audioNodeSuite1Util=_dereq_("./audio-node-suite-1-util.js");function _defineProperties(e,t){for(var r=0;r<t.length;r++){var o=t[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(e,_toPropertyKey(o.key),o)}}function _createClass(e,t,r){return t&&_defineProperties(e.prototype,t),r&&_defineProperties(e,r),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var o=r.call(e,t||"default");if("object"!==_typeof(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var AudioNodeGain=_createClass(function e(t){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),r=Object.assign({},{gain:0},r);var o=t.createGain();return o.gain.setValueAtTime((0,_audioNodeSuite1Util.dBFSToGain)(r.gain),t.currentTime),o});exports.AudioNodeGain=AudioNodeGain;var AudioNodeCompressor=_createClass(function e(t){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),r=Object.assign({},{threshold:-16,attack:.003,release:.4,knee:3,ratio:2},r);var o=t.createDynamicsCompressor();return o.threshold.value=r.threshold,o.knee.value=r.knee,o.ratio.value=r.ratio,o.attack.value=r.attack,o.release.value=r.release,o});exports.AudioNodeCompressor=AudioNodeCompressor;var AudioNodeLimiter=_createClass(function e(t){var r=arguments.length>1&&void 0!==arguments[1]&&arguments[1];_classCallCheck(this,e),r=Object.assign({},{threshold:-3,attack:.003,release:.05,knee:0,ratio:20});var o=t.createDynamicsCompressor();return o.threshold.value=r.threshold,o.knee.value=r.knee,o.ratio.value=r.ratio,o.attack.value=r.attack,o.release.value=r.release,o});exports.AudioNodeLimiter=AudioNodeLimiter;
+"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeNoise=exports.AudioNodeLimiter=exports.AudioNodeGain=exports.AudioNodeCompressor=void 0;var _audioNodeSuite1Util=_dereq_("./audio-node-suite-1-util.js");function _toConsumableArray(e){return _arrayWithoutHoles(e)||_iterableToArray(e)||_unsupportedIterableToArray(e)||_nonIterableSpread()}function _nonIterableSpread(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}function _unsupportedIterableToArray(e,r){if(e){if("string"==typeof e)return _arrayLikeToArray(e,r);var t=Object.prototype.toString.call(e).slice(8,-1);return"Object"===t&&e.constructor&&(t=e.constructor.name),"Map"===t||"Set"===t?Array.from(e):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?_arrayLikeToArray(e,r):void 0}}function _iterableToArray(e){if("undefined"!=typeof Symbol&&null!=e[Symbol.iterator]||null!=e["@@iterator"])return Array.from(e)}function _arrayWithoutHoles(e){if(Array.isArray(e))return _arrayLikeToArray(e)}function _arrayLikeToArray(e,r){(null==r||r>e.length)&&(r=e.length);for(var t=0,a=new Array(r);t<r;t++)a[t]=e[t];return a}function _defineProperties(e,r){for(var t=0;t<r.length;t++){var a=r[t];a.enumerable=a.enumerable||!1,a.configurable=!0,"value"in a&&(a.writable=!0),Object.defineProperty(e,_toPropertyKey(a.key),a)}}function _createClass(e,r,t){return r&&_defineProperties(e.prototype,r),t&&_defineProperties(e,t),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var r=_toPrimitive(e,"string");return"symbol"===_typeof(r)?r:String(r)}function _toPrimitive(e,r){if("object"!==_typeof(e)||null===e)return e;var t=e[Symbol.toPrimitive];if(void 0!==t){var a=t.call(e,r||"default");if("object"!==_typeof(a))return a;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===r?String:Number)(e)}function _classCallCheck(e,r){if(!(e instanceof r))throw new TypeError("Cannot call a class as a function")}var AudioNodeNoise=_createClass(function e(r){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),t=Object.assign({},{type:"pink",channels:1},t);var a=5*r.sampleRate,o=r.createBuffer(t.channels,a,r.sampleRate);if("white"===t.type)for(var i=0;i<a;i++)for(var n=2*Math.random()-1,s=0;s<t.channels;s++){o.getChannelData(s)[i]=n}else if("pink"===t.type){for(var l=[],u=0;u<t.channels;u++){l[u]=new Float32Array(a);for(var c=[0,0,0,0,0,0,0],d=0;d<a;d++){var m=2*Math.random()-1;c[0]=.99886*c[0]+.0555179*m,c[1]=.99332*c[1]+.0750759*m,c[2]=.969*c[2]+.153852*m,c[3]=.8665*c[3]+.3104856*m,c[4]=.55*c[4]+.5329522*m,c[5]=-.7616*c[5]-.016898*m,l[u][d]=c[0]+c[1]+c[2]+c[3]+c[4]+c[5]+c[6]+.5362*m,c[6]=.115926*m}}for(var p=[],y=[],f=0;f<l.length;f++)p.push(Math.min.apply(Math,_toConsumableArray(l[f]))),y.push(Math.max.apply(Math,_toConsumableArray(l[f])));for(var h=Math.min.apply(Math,p),v=Math.max.apply(Math,y),A=.9999999995343387/Math.max(Math.abs(h),v),b=0;b<t.channels;b++)for(var _=0;_<a;_++)o.getChannelData(b)[_]=l[b][_]*A}var T=r.createBufferSource();return T.buffer=o,T.loop=!0,T.start(0),T});exports.AudioNodeNoise=AudioNodeNoise;var AudioNodeGain=_createClass(function e(r){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),t=Object.assign({},{gain:0},t);var a=r.createGain();return a.gain.setValueAtTime((0,_audioNodeSuite1Util.dBFSToGain)(t.gain),r.currentTime),a.adjustGainDecibel=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;a.gain.linearRampToValueAtTime((0,_audioNodeSuite1Util.dBFSToGain)(e),r.currentTime+t)},a});exports.AudioNodeGain=AudioNodeGain;var AudioNodeCompressor=_createClass(function e(r){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),t=Object.assign({},{threshold:-16,attack:.003,release:.4,knee:3,ratio:2},t);var a=r.createDynamicsCompressor();return a.threshold.setValueAtTime(t.threshold,r.currentTime),a.knee.setValueAtTime(t.knee,r.currentTime),a.ratio.setValueAtTime(t.ratio,r.currentTime),a.attack.setValueAtTime(t.attack,r.currentTime),a.release.setValueAtTime(t.release,r.currentTime),a});exports.AudioNodeCompressor=AudioNodeCompressor;var AudioNodeLimiter=_createClass(function e(r){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),t=Object.assign({},{threshold:-3,attack:.001,release:.05,knee:0,ratio:20},t);var a=r.createDynamicsCompressor();return a.threshold.setValueAtTime(t.threshold,r.currentTime),a.knee.setValueAtTime(t.knee,r.currentTime),a.ratio.setValueAtTime(t.ratio,r.currentTime),a.attack.setValueAtTime(t.attack,r.currentTime),a.release.setValueAtTime(t.release,r.currentTime),a});exports.AudioNodeLimiter=AudioNodeLimiter;
 },{"./audio-node-suite-1-util.js":1}],4:[function(_dereq_,module,exports){
-"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeEqualizer=void 0;var _audioNodeSuite2Composite=_dereq_("./audio-node-suite-2-composite.js");function _defineProperties(e,t){for(var o=0;o<t.length;o++){var r=t[o];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,_toPropertyKey(r.key),r)}}function _createClass(e,t,o){return t&&_defineProperties(e.prototype,t),o&&_defineProperties(e,o),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var o=e[Symbol.toPrimitive];if(void 0!==o){var r=o.call(e,t||"default");if("object"!==_typeof(r))return r;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var AudioNodeEqualizer=_createClass(function e(t){var o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e);var r=[];if((o=Object.assign({},{bands:[]},o)).bands.length<1)throw new Error("at least one band has to be specified");for(var i=0;i<o.bands.length;i++){var n=Object.assign({},{type:"peaking",freq:64*Math.pow(2,i),q:1,gain:1},o.bands[i]),a=t.createBiquadFilter();a.type=n.type,a.frequency.value=n.freq,a.Q.value=n.q,a.gain.value=n.gain,r.push(a),i>0&&r[i-1].connect(r[i])}return 1===o.bands.length?r[0]:new _audioNodeSuite2Composite.AudioNodeComposite(r[0],r[r.length-1])});exports.AudioNodeEqualizer=AudioNodeEqualizer;
+"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeEqualizer=void 0;var _audioNodeSuite2Composite=_dereq_("./audio-node-suite-2-composite.js");function _defineProperties(e,t){for(var r=0;r<t.length;r++){var o=t[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(e,_toPropertyKey(o.key),o)}}function _createClass(e,t,r){return t&&_defineProperties(e.prototype,t),r&&_defineProperties(e,r),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var o=r.call(e,t||"default");if("object"!==_typeof(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var AudioNodeEqualizer=_createClass(function e(t){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e);var o=[];if((r=Object.assign({},{bands:[]},r)).bands.length<1)throw new Error("at least one band has to be specified");for(var i=0;i<r.bands.length;i++){var n=Object.assign({},{type:"peaking",freq:64*Math.pow(2,i),q:1,gain:1},r.bands[i]),a=t.createBiquadFilter();a.type=n.type,a.frequency.setValueAtTime(n.freq,t.currentTime),a.Q.setValueAtTime(n.q,t.currentTime),a.gain.setValueAtTime(n.gain,t.currentTime),o.push(a),i>0&&o[i-1].connect(o[i])}return 1===r.bands.length?o[0]:new _audioNodeSuite2Composite.AudioNodeComposite(o[0],o[o.length-1])});exports.AudioNodeEqualizer=AudioNodeEqualizer;
 },{"./audio-node-suite-2-composite.js":2}],5:[function(_dereq_,module,exports){
-"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function _defineProperties(e,t){for(var r=0;r<t.length;r++){var n=t[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,_toPropertyKey(n.key),n)}}function _createClass(e,t,r){return t&&_defineProperties(e.prototype,t),r&&_defineProperties(e,r),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var n=r.call(e,t||"default");if("object"!==_typeof(n))return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeMeter=void 0;var AudioNodeMeter=_createClass(function e(t){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),r=Object.assign({},{fftSize:2048,minDecibels:-100,maxDecibels:0,smoothingTimeConstant:.8,intervalTime:1e3/120,intervalLength:100},r);var n=t.createAnalyser();n.fftSize=r.fftSize,n.minDecibels=r.minDecibels,n.maxDecibels=r.maxDecibels,n.smoothingTimeConstant=r.smoothingTimeConstant;var o=new Float32Array(n.frequencyBinCount),i=new Float32Array(n.frequencyBinCount),a=[],l=-1,s=[],f=-1,u=function(e,t,r){for(var n=e.length<r?e.length:r,o=0,i=0,a=0;a<=t;a++){var l=a+(n-t);o+=l*e[a],i+=l}for(var s=t+1;s<n;s++){var f=s-(t+1);o+=f*e[s],i+=f}return o/=i,o},v=function(){n.getFloatFrequencyData(o);for(var e={},t=0,v=0;v<o.length;v++)o[v]<n.minDecibels?o[v]=n.minDecibels:o[v]>n.maxDecibels&&(o[v]=n.maxDecibels),t+=o[v]*o[v],i[v]=o[v];e.avg=Math.sqrt(t/o.length),i.sort(),e.min=i[0];var c=Math.floor(i.length/8);e.q1=i[1*c],e.q2=i[2*c],e.q3=i[3*c],e.med=i[4*c],e.q4=i[5*c],e.q5=i[6*c],e.q6=i[7*c],e.max=i[i.length-1],l=(l+1)%r.intervalLength,a[l]=e.max,e.lvlAvg=u(a,l,r.intervalLength),e.lvlDev=Math.abs(e.max-e.lvlAvg),f=(f+1)%r.intervalLength,s[f]=e.lvlDev,e.devAvg=u(s,f,r.intervalLength),e.devDev=Math.abs(e.lvlDev-e.devAvg),n._stat=e};return setInterval(v,r.intervalTime),v(),n.data=function(){return o},n.stat=function(){return n._stat},n});exports.AudioNodeMeter=AudioNodeMeter;
-},{}],6:[function(_dereq_,module,exports){
-"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeGate=void 0;var _audioNodeSuite1Util=_dereq_("./audio-node-suite-1-util.js"),_audioNodeSuite2Composite=_dereq_("./audio-node-suite-2-composite.js"),_audioNodeSuite5Meter=_dereq_("./audio-node-suite-5-meter.js");function _defineProperties(e,t){for(var o=0;o<t.length;o++){var i=t[o];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,_toPropertyKey(i.key),i)}}function _createClass(e,t,o){return t&&_defineProperties(e.prototype,t),o&&_defineProperties(e,o),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var o=e[Symbol.toPrimitive];if(void 0!==o){var i=o.call(e,t||"default");if("object"!==_typeof(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var AudioNodeGate=_createClass(function e(t){var o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),o=Object.assign({},{threshold:-50,hysteresis:-6,reduction:-50,interval:2,attack:4,hold:40,release:20},o);var i=new _audioNodeSuite5Meter.AudioNodeMeter(t,{fftSize:2048,minDecibels:-120,maxDecibels:0,smoothingTimeConstant:0,intervalTime:o.interval,intervalLength:1}),r=t.createGain();i.connect(r);var n="open",a=null;return setTimeout(function e(){var u=i.stat().lvlAvg;"closed"===n?u>=o.threshold&&(n="attack",r.gain.exponentialRampToValueAtTime(1,t.currentTime+o.attack/1e3),null!==a&&clearTimeout(a),a=setTimeout(function(){n="open"},o.attack)):"open"===n?u<o.threshold+o.hysteresis&&(n="hold",null!==a&&clearTimeout(a),a=setTimeout(function(){n="release";var e=(0,_audioNodeSuite1Util.dBFSToGain)(o.reduction);r.gain.exponentialRampToValueAtTime(e,t.currentTime+o.release/1e3),a=setTimeout(function(){n="closed"},o.release)},o.hold)):"hold"===n?u>=o.threshold&&(n="open",null!==a&&clearTimeout(a)):"release"===n&&u>=o.threshold&&(r.gain.cancelScheduledValues(t.currentTime),n="attack",r.gain.linearRampToValueAtTime(1,t.currentTime+o.attack/1e3),null!==a&&clearTimeout(a),a=setTimeout(function(){n="open"},o.attack)),setTimeout(e,o.interval)},o.interval),new _audioNodeSuite2Composite.AudioNodeComposite(i,r)});exports.AudioNodeGate=AudioNodeGate;
+"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeMeter=void 0;var _audioNodeSuite1Util=_dereq_("./audio-node-suite-1-util.js");function _defineProperties(e,t){for(var i=0;i<t.length;i++){var r=t[i];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,_toPropertyKey(r.key),r)}}function _createClass(e,t,i){return t&&_defineProperties(e.prototype,t),i&&_defineProperties(e,i),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var i=e[Symbol.toPrimitive];if(void 0!==i){var r=i.call(e,t||"default");if("object"!==_typeof(r))return r;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var AudioNodeMeter=_createClass(function e(t){var i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),i=Object.assign({},{fftSize:512,minDecibels:-94,maxDecibels:0,smoothingTimeConstant:.8,intervalTime:3,intervalCount:100},i);var r=t.createAnalyser();r.fftSize=i.fftSize,r.minDecibels=i.minDecibels,r.maxDecibels=i.maxDecibels,r.smoothingTimeConstant=i.smoothingTimeConstant;var o={peak:-1/0,rms:-1/0,rmsM:-1/0,rmsS:-1/0},n=i.intervalCount,a=!0,u=0,l=[],s=new Float32Array(r.fftSize),f=new Float32Array(r.frequencyBinCount),c=function(){r.getFloatTimeDomainData(s),r.getFloatFrequencyData(f);for(var e=0,t=-1/0,c=0;c<s.length;c++){var m=s[c]*s[c];e+=m,t<m&&(t=m)}o.rms=(0,_audioNodeSuite1Util.ensureWithin)((0,_audioNodeSuite1Util.gainTodBFS)(Math.sqrt(e/s.length)),i.minDecibels,i.maxDecibels),o.peak=(0,_audioNodeSuite1Util.ensureWithin)((0,_audioNodeSuite1Util.gainTodBFS)(Math.sqrt(t)),i.minDecibels,i.maxDecibels),n>0&&(u===n-1&&a&&(a=!1),l[u=(u+1)%n]=o.rms,o.rmsM=(0,_audioNodeSuite1Util.weightedAverage)(l,a,u,n))};return setInterval(c,i.intervalTime),c(),r.dataT=function(){return s},r.dataF=function(){return f},r.stat=function(){return o},r});exports.AudioNodeMeter=AudioNodeMeter;
+},{"./audio-node-suite-1-util.js":1}],6:[function(_dereq_,module,exports){
+"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeGate=void 0;var _audioNodeSuite1Util=_dereq_("./audio-node-suite-1-util.js"),_audioNodeSuite2Composite=_dereq_("./audio-node-suite-2-composite.js"),_audioNodeSuite5Meter=_dereq_("./audio-node-suite-5-meter.js");function _defineProperties(e,t){for(var o=0;o<t.length;o++){var i=t[o];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,_toPropertyKey(i.key),i)}}function _createClass(e,t,o){return t&&_defineProperties(e.prototype,t),o&&_defineProperties(e,o),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var o=e[Symbol.toPrimitive];if(void 0!==o){var i=o.call(e,t||"default");if("object"!==_typeof(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var AudioNodeGate=_createClass(function e(t){var o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),o=Object.assign({},{threshold:-45,hysteresis:-3,reduction:-30,interval:2,attack:4,hold:40,release:200},o);var i=new _audioNodeSuite5Meter.AudioNodeMeter(t,{fftSize:512,minDecibels:-94,maxDecibels:0,smoothingTimeConstant:.8,intervalTime:2,intervalCount:25}),r=t.createGain();i.connect(r);var n="open",a=null,u=(0,_audioNodeSuite1Util.dBFSToGain)(o.reduction);return setTimeout(function e(){var l=i.stat().rmsM;"closed"===n?l>=o.threshold&&(n="attack",r.gain.cancelScheduledValues(t.currentTime),r.gain.linearRampToValueAtTime(1,t.currentTime+o.attack/1e3),null!==a&&clearTimeout(a),a=setTimeout(function(){n="open"},o.attack)):"attack"===n?l<o.threshold+o.hysteresis&&(n="release",r.gain.cancelScheduledValues(t.currentTime),r.gain.linearRampToValueAtTime(u,t.currentTime+o.release/1e3),null!==a&&clearTimeout(a),a=setTimeout(function(){n="closed"},o.release)):"open"===n?l<o.threshold+o.hysteresis&&(n="hold",null!==a&&clearTimeout(a),a=setTimeout(function(){n="release",r.gain.cancelScheduledValues(t.currentTime),r.gain.linearRampToValueAtTime(u,t.currentTime+o.release/1e3),a=setTimeout(function(){n="closed"},o.release)},o.hold)):"hold"===n?l>=o.threshold&&(n="open",null!==a&&clearTimeout(a)):"release"===n&&l>=o.threshold&&(n="attack",r.gain.cancelScheduledValues(t.currentTime),r.gain.linearRampToValueAtTime(u,t.currentTime+o.attack/1e3),null!==a&&clearTimeout(a),a=setTimeout(function(){n="open"},o.attack)),setTimeout(e,o.interval)},o.interval),new _audioNodeSuite2Composite.AudioNodeComposite(i,r)});exports.AudioNodeGate=AudioNodeGate;
 },{"./audio-node-suite-1-util.js":1,"./audio-node-suite-2-composite.js":2,"./audio-node-suite-5-meter.js":5}],7:[function(_dereq_,module,exports){
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeSpectrum=void 0;var _audioNodeSuite5Meter=_dereq_("./audio-node-suite-5-meter.js");function _createForOfIteratorHelper(e,t){var r="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!r){if(Array.isArray(e)||(r=_unsupportedIterableToArray(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var i=0,o=function(){};return{s:o,n:function(){return i>=e.length?{done:!0}:{done:!1,value:e[i++]}},e:function(e){throw e},f:o}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var n,a=!0,l=!1;return{s:function(){r=r.call(e)},n:function(){var e=r.next();return a=e.done,e},e:function(e){l=!0,n=e},f:function(){try{a||null==r.return||r.return()}finally{if(l)throw n}}}}function _unsupportedIterableToArray(e,t){if(e){if("string"==typeof e)return _arrayLikeToArray(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?_arrayLikeToArray(e,t):void 0}}function _arrayLikeToArray(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,i=new Array(t);r<t;r++)i[r]=e[r];return i}function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function _defineProperties(e,t){for(var r=0;r<t.length;r++){var i=t[r];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,_toPropertyKey(i.key),i)}}function _createClass(e,t,r){return t&&_defineProperties(e.prototype,t),r&&_defineProperties(e,r),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var i=r.call(e,t||"default");if("object"!==_typeof(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}var AnimationFrameTimer=function(){function e(t){var r=this;if(_classCallCheck(this,e),this.timer=null,void 0!==window){this.timer={repeat:!0};window.requestAnimationFrame(function e(){t(),r.timer.repeat&&window.requestAnimationFrame(e)})}else this.timer=setInterval(function(){return t()},1e3/60)}return _createClass(e,[{key:"clear",value:function(){void 0!==window?this.timer.repeat=!1:clearTimeout(this.timer)}}]),e}(),AudioNodeSpectrum=_createClass(function e(t){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),r=Object.assign({},{fftSize:4096,minDecibels:-150,maxDecibels:0,smoothingTimeConstant:.8,intervalTime:1e3/60,intervalLength:10,layers:[-120,-90,-60,-30],slices:[40,80,160,320,640,1280,2560,5120,10240,20480],colorBackground:"#000000",colorBars:"#00cc00",colorAvg:"#00ff00",colorLayers:"#009900",colorSlices:"#009900",logarithmic:!0},r);var i=new _audioNodeSuite5Meter.AudioNodeMeter(t,{fftSize:r.fftSize,minDecibels:r.minDecibels,maxDecibels:r.maxDecibels,smoothingTimeConstant:r.smoothingTimeConstant,intervalTime:r.intervalTime,intervalLength:r.intervalLength}),o=[],n=null;return i.draw=function(e){o.push(e),1===o.length&&(n=new AnimationFrameTimer(function(){var e,t=_createForOfIteratorHelper(o);try{for(t.s();!(e=t.n()).done;){var r=e.value;i._draw(r)}}catch(e){t.e(e)}finally{t.f()}}))},i.undraw=function(e){0===(o=o.filter(function(t){return t!==e})).length&&n.clear()},i._draw=function(e){var t=i.data(),o=i.stat().lvlAvg,n=e.getContext("2d");n.fillStyle=r.colorBackground,n.fillRect(0,0,e.width,e.height),n.fillStyle=r.colorLayers;var a,l=_createForOfIteratorHelper(r.layers);try{for(l.s();!(a=l.n()).done;){var c=a.value,u=Math.abs(c-i.minDecibels)/(i.maxDecibels-i.minDecibels)*e.height;n.fillRect(0,e.height-u,e.width,1)}}catch(e){l.e(e)}finally{l.f()}n.fillStyle=r.colorSlices;var f,s=_createForOfIteratorHelper(r.slices);try{for(s.s();!(f=s.n()).done;){var h=f.value,m=Math.log2(h/20)*(e.width/10);n.fillRect(m,0,1,e.height)}}catch(e){s.e(e)}finally{s.f()}n.fillStyle=r.colorAvg;var y=Math.abs(o-i.minDecibels)/(i.maxDecibels-i.minDecibels)*e.height;if(n.fillRect(0,e.height-y,e.width,1),n.fillStyle=r.colorBars,r.logarithmic)for(var d=0;d<e.width;d++){var v=20*Math.pow(2,10*d/e.width),p=20*Math.pow(2,10*(d+1)/e.width),b=Math.round(v*(t.length/(20*Math.pow(2,10)))),g=Math.round(p*(t.length/(20*Math.pow(2,10))))-1;g<b&&(g=b);for(var w=0,_=b;_<=g;_++)w+=t[_];w/=g+1-b;var S=Math.abs(w-i.minDecibels)/(i.maxDecibels-i.minDecibels)*e.height;n.fillRect(d,e.height-S,1,S)}else for(var A=0,D=e.width/t.length,T=0;T<t.length;T++){var M=t[T],C=Math.abs(M-i.minDecibels)/(i.maxDecibels-i.minDecibels)*e.height;n.fillRect(A,e.height-C,D-.5,C),A+=D}},i});exports.AudioNodeSpectrum=AudioNodeSpectrum;
-},{"./audio-node-suite-5-meter.js":5}],8:[function(_dereq_,module,exports){
-"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeVoice=void 0;var _audioNodeSuite2Composite=_dereq_("./audio-node-suite-2-composite.js"),_audioNodeSuite3Standard=_dereq_("./audio-node-suite-3-standard.js"),_audioNodeSuite4Equalizer=_dereq_("./audio-node-suite-4-equalizer.js"),_audioNodeSuite6Gate=_dereq_("./audio-node-suite-6-gate.js");function _defineProperties(e,o){for(var t=0;t<o.length;t++){var i=o[t];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,_toPropertyKey(i.key),i)}}function _createClass(e,o,t){return o&&_defineProperties(e.prototype,o),t&&_defineProperties(e,t),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var o=_toPrimitive(e,"string");return"symbol"===_typeof(o)?o:String(o)}function _toPrimitive(e,o){if("object"!==_typeof(e)||null===e)return e;var t=e[Symbol.toPrimitive];if(void 0!==t){var i=t.call(e,o||"default");if("object"!==_typeof(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===o?String:Number)(e)}function _classCallCheck(e,o){if(!(e instanceof o))throw new TypeError("Cannot call a class as a function")}var AudioNodeVoice=_createClass(function e(o){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),t=Object.assign({},{gain:0},t);var i=new _audioNodeSuite4Equalizer.AudioNodeEqualizer(o,{bands:[{type:"highpass",freq:80,q:1},{type:"notch",freq:50,q:20},{type:"notch",freq:960,q:1.5},{type:"lowpass",freq:20480,q:.5}]}),r=new _audioNodeSuite6Gate.AudioNodeGate(o,{threshold:-50,hysteresis:-6,reduction:-50,interval:2,attack:4,hold:40,release:20}),n=new _audioNodeSuite3Standard.AudioNodeCompressor(o,{threshold:-16,attack:.003,release:.4,knee:3,ratio:2}),a=new _audioNodeSuite4Equalizer.AudioNodeEqualizer(o,{bands:[{type:"peaking",freq:240,q:.75,gain:3},{type:"highshelf",freq:3840,q:.75,gain:6}]}),u=new _audioNodeSuite3Standard.AudioNodeGain(o,{gain:-6+t.gain}),d=new _audioNodeSuite3Standard.AudioNodeLimiter(o,{threshold:-3});return i.connect(r),r.connect(n),n.connect(a),a.connect(u),u.connect(d),new _audioNodeSuite2Composite.AudioNodeComposite(i,d)});exports.AudioNodeVoice=AudioNodeVoice;
-},{"./audio-node-suite-2-composite.js":2,"./audio-node-suite-3-standard.js":3,"./audio-node-suite-4-equalizer.js":4,"./audio-node-suite-6-gate.js":6}],9:[function(_dereq_,module,exports){
-"use strict";var _audioNodeSuite2Composite=_dereq_("./audio-node-suite-2-composite.js"),_audioNodeSuite3Standard=_dereq_("./audio-node-suite-3-standard.js"),_audioNodeSuite4Equalizer=_dereq_("./audio-node-suite-4-equalizer.js"),_audioNodeSuite5Meter=_dereq_("./audio-node-suite-5-meter.js"),_audioNodeSuite6Gate=_dereq_("./audio-node-suite-6-gate.js"),_audioNodeSuite7Spectrum=_dereq_("./audio-node-suite-7-spectrum.js"),_audioNodeSuite8Voice=_dereq_("./audio-node-suite-8-voice.js");module.exports={AudioNodeComposite:_audioNodeSuite2Composite.AudioNodeComposite,AudioNodeGain:_audioNodeSuite3Standard.AudioNodeGain,AudioNodeCompressor:_audioNodeSuite3Standard.AudioNodeCompressor,AudioNodeLimiter:_audioNodeSuite3Standard.AudioNodeLimiter,AudioNodeEqualizer:_audioNodeSuite4Equalizer.AudioNodeEqualizer,AudioNodeMeter:_audioNodeSuite5Meter.AudioNodeMeter,AudioNodeGate:_audioNodeSuite6Gate.AudioNodeGate,AudioNodeSpectrum:_audioNodeSuite7Spectrum.AudioNodeSpectrum,AudioNodeVoice:_audioNodeSuite8Voice.AudioNodeVoice};
-},{"./audio-node-suite-2-composite.js":2,"./audio-node-suite-3-standard.js":3,"./audio-node-suite-4-equalizer.js":4,"./audio-node-suite-5-meter.js":5,"./audio-node-suite-6-gate.js":6,"./audio-node-suite-7-spectrum.js":7,"./audio-node-suite-8-voice.js":8}]},{},[1,2,3,4,5,6,7,8,9])(9)
+"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeAmplitude=void 0;var _audioNodeSuite1Util=_dereq_("./audio-node-suite-1-util.js"),_audioNodeSuite5Meter=_dereq_("./audio-node-suite-5-meter.js");function _createForOfIteratorHelper(e,t){var r="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!r){if(Array.isArray(e)||(r=_unsupportedIterableToArray(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var o=0,i=function(){};return{s:i,n:function(){return o>=e.length?{done:!0}:{done:!1,value:e[o++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var n,a=!0,l=!1;return{s:function(){r=r.call(e)},n:function(){var e=r.next();return a=e.done,e},e:function(e){l=!0,n=e},f:function(){try{a||null==r.return||r.return()}finally{if(l)throw n}}}}function _unsupportedIterableToArray(e,t){if(e){if("string"==typeof e)return _arrayLikeToArray(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?_arrayLikeToArray(e,t):void 0}}function _arrayLikeToArray(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,o=new Array(t);r<t;r++)o[r]=e[r];return o}function _defineProperties(e,t){for(var r=0;r<t.length;r++){var o=t[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(e,_toPropertyKey(o.key),o)}}function _createClass(e,t,r){return t&&_defineProperties(e.prototype,t),r&&_defineProperties(e,r),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var o=r.call(e,t||"default");if("object"!==_typeof(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var AudioNodeAmplitude=_createClass(function e(t){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),r=Object.assign({},{fftSize:512,minDecibels:-60,maxDecibels:0,smoothingTimeConstant:.8,intervalTime:1e3/60,intervalCount:Math.round(18),decibelBars:[-60,-45,-21,-6],colorBars:["#306090","#00b000","#e0d000","#e03030"],colorBarsDeactive:["#606060","#808080","#a0a0a0","#c0c0c0"],colorRMS:"#ffffff",colorBackground:"#000000",horizontal:!1},r);var o=new _audioNodeSuite5Meter.AudioNodeMeter(t,{fftSize:r.fftSize,minDecibels:r.minDecibels,maxDecibels:r.maxDecibels,smoothingTimeConstant:r.smoothingTimeConstant,intervalTime:r.intervalTime,intervalCount:r.intervalCount}),i=[],n=null,a=!1;return o.deactive=function(e){a=e},o.draw=function(e){i.push(e),1===i.length&&(n=new _audioNodeSuite1Util.AnimationFrameTimer(function(){var e,t=_createForOfIteratorHelper(i);try{for(t.s();!(e=t.n()).done;){var r=e.value;o._draw(r)}}catch(e){t.e(e)}finally{t.f()}}))},o.undraw=function(e){0===(i=i.filter(function(t){return t!==e})).length&&n.clear()},o._draw=function(e){var t=o.stat().peak,i=o.stat().rmsM,n=e.getContext("2d");n.fillStyle=r.colorBackground,n.fillRect(0,0,e.width,e.height);for(var l=a?r.colorBarsDeactive:r.colorBars,u=function(t){return r.horizontal?t/(o.maxDecibels-o.minDecibels)*e.width:t/(o.maxDecibels-o.minDecibels)*e.height},c=function(t,i,a){var l=u(Math.abs(i-o.minDecibels)),c=u(Math.abs(i-t));n.fillStyle=a,r.horizontal?n.fillRect(l-c,0,c,e.height):n.fillRect(0,e.height-l,e.width,c)},f=Math.min(r.decibelBars.length,l.length),s=o.minDecibels,d=l[0],m=0;m<f&&!(t<r.decibelBars[m]);m++){var y=r.decibelBars[m];c(s,y,d),d=l[m],s=y}c(s,t,d);var b=u(Math.abs(i-o.minDecibels));n.fillStyle=r.colorRMS,r.horizontal?n.fillRect(b-1,0,1,e.height):n.fillRect(0,e.height-b,e.width,1)},o});exports.AudioNodeAmplitude=AudioNodeAmplitude;
+},{"./audio-node-suite-1-util.js":1,"./audio-node-suite-5-meter.js":5}],8:[function(_dereq_,module,exports){
+"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeSpectrum=void 0;var _audioNodeSuite1Util=_dereq_("./audio-node-suite-1-util.js"),_audioNodeSuite5Meter=_dereq_("./audio-node-suite-5-meter.js");function _createForOfIteratorHelper(e,t){var r="undefined"!=typeof Symbol&&e[Symbol.iterator]||e["@@iterator"];if(!r){if(Array.isArray(e)||(r=_unsupportedIterableToArray(e))||t&&e&&"number"==typeof e.length){r&&(e=r);var o=0,i=function(){};return{s:i,n:function(){return o>=e.length?{done:!0}:{done:!1,value:e[o++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var n,a=!0,l=!1;return{s:function(){r=r.call(e)},n:function(){var e=r.next();return a=e.done,e},e:function(e){l=!0,n=e},f:function(){try{a||null==r.return||r.return()}finally{if(l)throw n}}}}function _unsupportedIterableToArray(e,t){if(e){if("string"==typeof e)return _arrayLikeToArray(e,t);var r=Object.prototype.toString.call(e).slice(8,-1);return"Object"===r&&e.constructor&&(r=e.constructor.name),"Map"===r||"Set"===r?Array.from(e):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?_arrayLikeToArray(e,t):void 0}}function _arrayLikeToArray(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,o=new Array(t);r<t;r++)o[r]=e[r];return o}function _defineProperties(e,t){for(var r=0;r<t.length;r++){var o=t[r];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(e,_toPropertyKey(o.key),o)}}function _createClass(e,t,r){return t&&_defineProperties(e.prototype,t),r&&_defineProperties(e,r),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var t=_toPrimitive(e,"string");return"symbol"===_typeof(t)?t:String(t)}function _toPrimitive(e,t){if("object"!==_typeof(e)||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var o=r.call(e,t||"default");if("object"!==_typeof(o))return o;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var AudioNodeSpectrum=_createClass(function e(t){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),r=Object.assign({},{fftSize:8192,minDecibels:-144,maxDecibels:0,smoothingTimeConstant:.8,intervalTime:1e3/60,layers:[-120,-90,-60,-50,-40,-30,-20,-10],slices:[40,80,160,320,640,1280,2560,5120,10240,20480],colorBackground:"#000000",colorBars:"#00cc00",colorLayers:"#009900",colorSlices:"#009900",logarithmic:!0},r);var o=new _audioNodeSuite5Meter.AudioNodeMeter(t,{fftSize:r.fftSize,minDecibels:r.minDecibels,maxDecibels:r.maxDecibels,smoothingTimeConstant:r.smoothingTimeConstant,intervalTime:r.intervalTime,intervalCount:0}),i=[],n=null;return o.draw=function(e){i.push(e),1===i.length&&(n=new _audioNodeSuite1Util.AnimationFrameTimer(function(){var e,t=_createForOfIteratorHelper(i);try{for(t.s();!(e=t.n()).done;){var r=e.value;o._draw(r)}}catch(e){t.e(e)}finally{t.f()}}))},o.undraw=function(e){0===(i=i.filter(function(t){return t!==e})).length&&n.clear()},o._draw=function(e){var t=o.dataF(),i=e.getContext("2d");i.fillStyle=r.colorBackground,i.fillRect(0,0,e.width,e.height);var n=function(t){return t/(o.maxDecibels-o.minDecibels)*e.height};i.fillStyle=r.colorLayers;var a,l=_createForOfIteratorHelper(r.layers);try{for(l.s();!(a=l.n()).done;){var u=a.value,c=n(Math.abs(u-o.minDecibels));i.fillRect(0,e.height-c,e.width,1)}}catch(e){l.e(e)}finally{l.f()}i.fillStyle=r.colorSlices;var f,s=_createForOfIteratorHelper(r.slices);try{for(s.s();!(f=s.n()).done;){var y=f.value,d=Math.log2(y/20)*(e.width/10);i.fillRect(d,0,1,e.height)}}catch(e){s.e(e)}finally{s.f()}if(i.fillStyle=r.colorBars,r.logarithmic)for(var m=0;m<e.width;m++){var h=20*Math.pow(2,10*m/e.width),p=20*Math.pow(2,10*(m+1)/e.width),v=Math.round(h*(t.length/(20*Math.pow(2,10)))),b=Math.round(p*(t.length/(20*Math.pow(2,10))))-1;b<v&&(b=v);for(var g=0,_=v;_<=b;_++)g+=t[_];var S=n((g/=b+1-v)-o.minDecibels);i.fillRect(m,e.height-S,1,S)}else for(var w=0,A=e.width/t.length,T=0;T<t.length;T++){var C=n(t[T]-o.minDecibels);i.fillRect(w,e.height-C,A-.5,C),w+=A}},o});exports.AudioNodeSpectrum=AudioNodeSpectrum;
+},{"./audio-node-suite-1-util.js":1,"./audio-node-suite-5-meter.js":5}],9:[function(_dereq_,module,exports){
+"use strict";function _typeof(e){return(_typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e})(e)}Object.defineProperty(exports,"__esModule",{value:!0}),exports.AudioNodeVoice=void 0;var _audioNodeSuite2Composite=_dereq_("./audio-node-suite-2-composite.js"),_audioNodeSuite3Standard=_dereq_("./audio-node-suite-3-standard.js"),_audioNodeSuite4Equalizer=_dereq_("./audio-node-suite-4-equalizer.js"),_audioNodeSuite6Gate=_dereq_("./audio-node-suite-6-gate.js");function _defineProperties(e,o){for(var t=0;t<o.length;t++){var i=o[t];i.enumerable=i.enumerable||!1,i.configurable=!0,"value"in i&&(i.writable=!0),Object.defineProperty(e,_toPropertyKey(i.key),i)}}function _createClass(e,o,t){return o&&_defineProperties(e.prototype,o),t&&_defineProperties(e,t),Object.defineProperty(e,"prototype",{writable:!1}),e}function _toPropertyKey(e){var o=_toPrimitive(e,"string");return"symbol"===_typeof(o)?o:String(o)}function _toPrimitive(e,o){if("object"!==_typeof(e)||null===e)return e;var t=e[Symbol.toPrimitive];if(void 0!==t){var i=t.call(e,o||"default");if("object"!==_typeof(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===o?String:Number)(e)}function _classCallCheck(e,o){if(!(e instanceof o))throw new TypeError("Cannot call a class as a function")}var AudioNodeVoice=_createClass(function e(o){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};_classCallCheck(this,e),t=Object.assign({},{gain:0},t);var i=new _audioNodeSuite4Equalizer.AudioNodeEqualizer(o,{bands:[{type:"highpass",freq:80,q:4},{type:"notch",freq:50,q:1.5},{type:"notch",freq:960,q:1.5},{type:"lowpass",freq:20480,q:.25}]}),r=new _audioNodeSuite6Gate.AudioNodeGate(o),n=new _audioNodeSuite3Standard.AudioNodeCompressor(o),a=new _audioNodeSuite4Equalizer.AudioNodeEqualizer(o,{bands:[{type:"peaking",freq:240,q:.75,gain:3},{type:"highshelf",freq:3840,q:.75,gain:6}]}),u=new _audioNodeSuite3Standard.AudioNodeGain(o,{gain:-9+t.gain}),d=new _audioNodeSuite3Standard.AudioNodeLimiter(o);i.connect(r),r.connect(n),n.connect(a),a.connect(u),u.connect(d);var s=new _audioNodeSuite2Composite.AudioNodeComposite(i,d);return s.adjustGainDecibel=function(e){var o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:10;u.adjustGainDecibel(-9+e,o)},s});exports.AudioNodeVoice=AudioNodeVoice;
+},{"./audio-node-suite-2-composite.js":2,"./audio-node-suite-3-standard.js":3,"./audio-node-suite-4-equalizer.js":4,"./audio-node-suite-6-gate.js":6}],10:[function(_dereq_,module,exports){
+"use strict";var _audioNodeSuite2Composite=_dereq_("./audio-node-suite-2-composite.js"),_audioNodeSuite3Standard=_dereq_("./audio-node-suite-3-standard.js"),_audioNodeSuite4Equalizer=_dereq_("./audio-node-suite-4-equalizer.js"),_audioNodeSuite5Meter=_dereq_("./audio-node-suite-5-meter.js"),_audioNodeSuite6Gate=_dereq_("./audio-node-suite-6-gate.js"),_audioNodeSuite7Amplitude=_dereq_("./audio-node-suite-7-amplitude.js"),_audioNodeSuite8Spectrum=_dereq_("./audio-node-suite-8-spectrum.js"),_audioNodeSuite9Voice=_dereq_("./audio-node-suite-9-voice.js");module.exports={AudioNodeComposite:_audioNodeSuite2Composite.AudioNodeComposite,AudioNodeNoise:_audioNodeSuite3Standard.AudioNodeNoise,AudioNodeGain:_audioNodeSuite3Standard.AudioNodeGain,AudioNodeCompressor:_audioNodeSuite3Standard.AudioNodeCompressor,AudioNodeLimiter:_audioNodeSuite3Standard.AudioNodeLimiter,AudioNodeEqualizer:_audioNodeSuite4Equalizer.AudioNodeEqualizer,AudioNodeMeter:_audioNodeSuite5Meter.AudioNodeMeter,AudioNodeGate:_audioNodeSuite6Gate.AudioNodeGate,AudioNodeAmplitude:_audioNodeSuite7Amplitude.AudioNodeAmplitude,AudioNodeSpectrum:_audioNodeSuite8Spectrum.AudioNodeSpectrum,AudioNodeVoice:_audioNodeSuite9Voice.AudioNodeVoice};
+},{"./audio-node-suite-2-composite.js":2,"./audio-node-suite-3-standard.js":3,"./audio-node-suite-4-equalizer.js":4,"./audio-node-suite-5-meter.js":5,"./audio-node-suite-6-gate.js":6,"./audio-node-suite-7-amplitude.js":7,"./audio-node-suite-8-spectrum.js":8,"./audio-node-suite-9-voice.js":9}]},{},[1,2,3,4,5,6,7,8,9,10])(10)
 });

package.json

 {
     "name":                       "audio-node-suite",
-    "version":                    "0.9.8",
+    "version":                    "0.9.9",
     "description":                "Audio-Node-Suite -- Web Audio API AudioNode Suite",
@@ -5,0 +5,0 @@ "keywords":                   [ "web", "audio", "api", "audionode", "suite" ],

src/audio-node-suite-1-util.js

@@ -25,5 +25,70 @@ /*
 
-/*  utility functions for converting between dBFS (0.0 .. -120.0) and Gain (1.0 .. 0.0)  */
-export const dBFSToGain = (dbfs) => Math.pow(10, dbfs / 20)
-export const gainTodBFS = (gain) => 20 * Math.log10(gain)
+/*  utility functions for converting from dBFS (0.0 .. -120.0) to Gain (1.0 .. 0.0)  */
+export const dBFSToGain = (dbfs) =>
+    Math.pow(10, dbfs / 20)
 
+/*  utility functions for converting from Gain (1.0 .. 0.0) to dBFS (0.0 .. -120.0)  */
+export const gainTodBFS = (gain) =>
+    20 * Math.log10(gain)
+
+/*  get the value at a certain frequency in a bucket of frequencies (as returned by "getFloatFrequencyData"  */
+export const getFrequencyValue = (ctx, freq, buckets) => {
+    const nyquist = ctx.sampleRate / 2
+    const index   = Math.round(freq / nyquist * buckets.length)
+    return buckets[index]
+}
+
+/*  ensure a value is within min/max boundaries  */
+export const ensureWithin = (val, min, max) => {
+    if (val < min)
+        val = min
+    else if (val > max)
+        val = max
+    return val
+}
+
+/*  calculate weighted average value  */
+export const weightedAverage = (arr, init, pos, len) => {
+    const max = arr.length < len ? arr.length : len
+    let avg = 0
+    let num = 0
+    for (let i = 0; i <= pos; i++) {
+        const w = i + (max - pos)
+        avg += w * arr[i]
+        num += w
+    }
+    if (!init) {
+        for (let i = pos + 1; i < max; i++) {
+            const w = i - (pos + 1)
+            avg += w * arr[i]
+            num += w
+        }
+    }
+    avg /= num
+    return avg
+}
+
+/*  a window "requestAnimationFrame" based timer  */
+export class AnimationFrameTimer {
+    constructor (cb) {
+        this.timer = null
+        if (window !== undefined) {
+            this.timer = { repeat: true }
+            const once = () => {
+                cb()
+                if (this.timer.repeat)
+                    window.requestAnimationFrame(once)
+            }
+            window.requestAnimationFrame(once)
+        }
+        else
+            this.timer = setInterval(() => cb(), 1000 / 60) /* 60 fps */
+    }
+    clear () {
+        if (window !== undefined)
+            this.timer.repeat = false
+        else
+            clearTimeout(this.timer)
+    }
+}
+

src/audio-node-suite-3-standard.js

@@ -28,2 +28,72 @@ /*
 
+/*  custom AudioNode: noise  */
+export class AudioNodeNoise {
+    constructor (context, params = {}) {
+        /*  provide parameter defaults  */
+        params = Object.assign({}, {
+            type: "pink",
+            channels: 1
+        }, params)
+
+        /*  generate noise  */
+        const lengthInSamples = 5 * context.sampleRate
+        const buffer = context.createBuffer(params.channels, lengthInSamples, context.sampleRate)
+        if (params.type === "white") {
+            /*  generate WHITE noise, i.e., random amplitudes across the entire frequency range  */
+            for (let i = 0; i < lengthInSamples; i++) {
+                const rand = (Math.random() * 2) - 1
+                for (let j = 0; j < params.channels; j++) {
+                    const data = buffer.getChannelData(j)
+                    data[i] = rand
+                }
+            }
+        }
+        else if (params.type === "pink") {
+            /*  generate PINK noise, i.e., random amplitudes across the entire frequency range and
+                where the amplitudes of the higher frequences are less strong than the low frequences.  */
+
+            /*  phase 1: generate PINK noise.
+                This is based on the approximating algorithm from Paul Kellett.
+                (see https://www.musicdsp.org/en/latest/_downloads/84bf8a1271c6bb0b3c88253c0546ae0f/pink.txt)  */
+            let pink = []
+            for (let i = 0; i < params.channels; i++) {
+                pink[i] = new Float32Array(lengthInSamples)
+                let b = [ 0, 0, 0, 0, 0, 0, 0 ]
+                for (let j = 0; j < lengthInSamples; j++) {
+                    const white = (Math.random() * 2) - 1
+                    b[0] = 0.99886 * b[0] + white * 0.0555179
+                    b[1] = 0.99332 * b[1] + white * 0.0750759
+                    b[2] = 0.96900 * b[2] + white * 0.1538520
+                    b[3] = 0.86650 * b[3] + white * 0.3104856
+                    b[4] = 0.55000 * b[4] + white * 0.5329522
+                    b[5] = -0.7616 * b[5] - white * 0.0168980
+                    pink[i][j] = b[0] + b[1] + b[2] + b[3] + b[4] + b[5] + b[6] + white * 0.5362
+                    b[6] = white * 0.115926
+                }
+            }
+
+            /*  phase 2: normalize to +/-1 and prevent positive saturation.  */
+            let minA = []
+            let maxA = []
+            for (let i = 0; i < pink.length; i++) {
+                minA.push(Math.min(...pink[i]))
+                maxA.push(Math.max(...pink[i]))
+            }
+            const min = Math.min(...minA)
+            const max = Math.max(...maxA)
+            const coefficient = (2147483647 / 2147483648) / Math.max(Math.abs(min), max)
+            for (let i = 0; i < params.channels; i++)
+                for (let j = 0; j < lengthInSamples; j++)
+                    buffer.getChannelData(i)[j] = pink[i][j] * coefficient
+        }
+
+        /*  create underlying BufferSource node  */
+        const bs = context.createBufferSource()
+        bs.buffer = buffer
+        bs.loop = true
+        bs.start(0)
+        return bs
+    }
+}
+
 /*  custom AudioNode: gain  */
@@ -40,2 +110,5 @@ export class AudioNodeGain {
         gain.gain.setValueAtTime(dBFSToGain(params.gain), context.currentTime)
+        gain.adjustGainDecibel = (db, ms = 10) => {
+            gain.gain.linearRampToValueAtTime(dBFSToGain(db), context.currentTime + ms)
+        }
         return gain
@@ -54,3 +127,3 @@ }
             knee:      3.0,
-            ratio:     2.0
+            ratio:     2
         }, params)
@@ -60,7 +133,7 @@
         const compressor = context.createDynamicsCompressor()
-        compressor.threshold.value = params.threshold
-        compressor.knee.value      = params.knee
-        compressor.ratio.value     = params.ratio
-        compressor.attack.value    = params.attack
-        compressor.release.value   = params.release
+        compressor.threshold.setValueAtTime(params.threshold, context.currentTime)
+        compressor.knee.setValueAtTime(params.knee, context.currentTime)
+        compressor.ratio.setValueAtTime(params.ratio, context.currentTime)
+        compressor.attack.setValueAtTime(params.attack, context.currentTime)
+        compressor.release.setValueAtTime(params.release, context.currentTime)
         return compressor
@@ -76,15 +149,15 @@ }
             threshold: -3.0,
-            attack:    0.003,
+            attack:    0.001,
             release:   0.050,
-            knee:      0.0,
-            ratio:     20.0
-        })
+            knee:      0,
+            ratio:     20
+        }, params)
 
         /*  create and configure underlying Compressor node  */
         const limiter = context.createDynamicsCompressor()
-        limiter.threshold.value = params.threshold
-        limiter.knee.value      = params.knee
-        limiter.ratio.value     = params.ratio
-        limiter.attack.value    = params.attack
-        limiter.release.value   = params.release
+        limiter.threshold.setValueAtTime(params.threshold, context.currentTime)
+        limiter.knee.setValueAtTime(params.knee, context.currentTime)
+        limiter.ratio.setValueAtTime(params.ratio, context.currentTime)
+        limiter.attack.setValueAtTime(params.attack, context.currentTime)
+        limiter.release.setValueAtTime(params.release, context.currentTime)
         return limiter
@@ -91,0 +164,0 @@ }

src/audio-node-suite-4-equalizer.js

@@ -51,6 +51,6 @@ /*
             const band = context.createBiquadFilter()
-            band.type            = options.type
-            band.frequency.value = options.freq
-            band.Q.value         = options.q
-            band.gain.value      = options.gain
+            band.type = options.type
+            band.frequency.setValueAtTime(options.freq, context.currentTime)
+            band.Q.setValueAtTime(options.q, context.currentTime)
+            band.gain.setValueAtTime(options.gain, context.currentTime)
 
@@ -57,0 +57,0 @@ /*  assemble bands  */

src/audio-node-suite-5-meter.js

@@ -25,2 +25,5 @@ /*
 
+/*  internal requirements  */
+import { gainTodBFS, ensureWithin, weightedAverage } from "./audio-node-suite-1-util.js"
+
 /*  custom AudioNode: meter  */
@@ -31,11 +34,11 @@ export class AudioNodeMeter {
         params = Object.assign({}, {
-            fftSize:               2048,
-            minDecibels:           -100,
+            fftSize:               512,
+            minDecibels:           -94,
             maxDecibels:           0,
             smoothingTimeConstant: 0.8,
-            intervalTime:          1000 / 120,
-            intervalLength:        100
+            intervalTime:          3,
+            intervalCount:         100
         }, params)
 
-        /*  create analyser filter  */
+        /*  create underlying analyser node  */
         const analyser = context.createAnalyser()
@@ -47,76 +50,39 @@ analyser.fftSize               = params.fftSize
 
-        /*  create storage bins  */
-        const data       = new Float32Array(analyser.frequencyBinCount)
-        const dataSorted = new Float32Array(analyser.frequencyBinCount)
+        /*  initialize internal state  */
+        const stat = { peak: -Infinity, rms:  -Infinity, rmsM: -Infinity, rmsS: -Infinity }
+        const rmsLen  = params.intervalCount
+        let   rmsInit = true
+        let   rmsPos  = 0
+        const rmsArr  = []
+        const dataT = new Float32Array(analyser.fftSize)
+        const dataF = new Float32Array(analyser.frequencyBinCount)
 
-        /*  internal state  */
-        const lvlAvgArr  = []
-        let lvlAvgPos = -1
-        const devAvgArr  = []
-        let devAvgPos = -1
+        /*  measure the metrics  */
+        const measure = () => {
+            /*  store time/amplitude data into storage bin  */
+            analyser.getFloatTimeDomainData(dataT)
 
-        /*  calculate weighted average value  */
-        const avg = (arr, pos, len) => {
-            const max = arr.length < len ? arr.length : len
+            /*  store frequency/decibel data into storage bin  */
+            analyser.getFloatFrequencyData(dataF)
 
-            let avg = 0
-            let num = 0
-            for (let i = 0; i <= pos; i++) {
-                const w = i + (max - pos)
-                avg += w * arr[i]
-                num += w
+            /*  calculate the instant RMS and Peak amplitude of the signal  */
+            let rms  = 0
+            let peak = -Infinity
+            for (let i = 0; i < dataT.length; i++) {
+                const square = dataT[i] * dataT[i]
+                rms += square
+                if (peak < square)
+                    peak = square
             }
-            for (let i = pos + 1; i < max; i++) {
-                const w = i - (pos + 1)
-                avg += w * arr[i]
-                num += w
-            }
-            avg /= num
-            return avg
-        }
+            stat.rms  = ensureWithin(gainTodBFS(Math.sqrt(rms / dataT.length)), params.minDecibels, params.maxDecibels)
+            stat.peak = ensureWithin(gainTodBFS(Math.sqrt(peak)),               params.minDecibels, params.maxDecibels)
 
-        /*  measure the metrics  */
-        const measure = () => {
-            /*  store FFT data into storage bin  */
-            analyser.getFloatFrequencyData(data)
-
-            /*  calculate the average decibel level of the signal over all frequencies  */
-            const stat = {}
-            let total = 0
-            for (let i = 0; i < data.length; i++) {
-                if (data[i] < analyser.minDecibels)
-                    data[i] = analyser.minDecibels
-                else if (data[i] > analyser.maxDecibels)
-                    data[i] = analyser.maxDecibels
-                total += data[i] * data[i]
-                dataSorted[i] = data[i]
+            /*  determine RMS over time  */
+            if (rmsLen > 0) {
+                if (rmsPos === (rmsLen - 1) && rmsInit)
+                    rmsInit = false
+                rmsPos = (rmsPos + 1) % rmsLen
+                rmsArr[rmsPos] = stat.rms
+                stat.rmsM = weightedAverage(rmsArr, rmsInit, rmsPos, rmsLen)
             }
-            stat.avg = Math.sqrt(total / data.length)
-
-            /*  sort frequencies and determine quantiles  */
-            dataSorted.sort()
-            stat.min = dataSorted[0]
-            const q = Math.floor(dataSorted.length / 8)
-            stat.q1  = dataSorted[q * 1]
-            stat.q2  = dataSorted[q * 2]
-            stat.q3  = dataSorted[q * 3]
-            stat.med = dataSorted[q * 4]
-            stat.q4  = dataSorted[q * 5]
-            stat.q5  = dataSorted[q * 6]
-            stat.q6  = dataSorted[q * 7]
-            stat.max = dataSorted[dataSorted.length - 1]
-
-            /*  find time-based average  */
-            lvlAvgPos = (lvlAvgPos + 1) % params.intervalLength
-            lvlAvgArr[lvlAvgPos] = stat.max
-            stat.lvlAvg = avg(lvlAvgArr, lvlAvgPos, params.intervalLength)
-            stat.lvlDev = Math.abs(stat.max - stat.lvlAvg)
-
-            /*  find time-based deviation  */
-            devAvgPos = (devAvgPos + 1) % params.intervalLength
-            devAvgArr[devAvgPos] = stat.lvlDev
-            stat.devAvg = avg(devAvgArr, devAvgPos, params.intervalLength)
-            stat.devDev = Math.abs(stat.lvlDev - stat.devAvg)
-
-            analyser._stat = stat
         }
@@ -127,5 +93,7 @@ setInterval(measure, params.intervalTime)
         /*  allow caller to access internals  */
-        analyser.data = () => data
-        analyser.stat = () => analyser._stat
+        analyser.dataT = () => dataT
+        analyser.dataF = () => dataF
+        analyser.stat  = () => stat
 
+        /*  return underlying node  */
         return analyser
@@ -132,0 +100,0 @@ }

src/audio-node-suite-6-gate.js

@@ -35,19 +35,19 @@ /*
         params = Object.assign({}, {
-            threshold:  -50,  /*  open above threshold (dbFS)  */
-            hysteresis: -6,   /*  close below threshold+hysteresis (dbFS)  */
-            reduction:  -50,  /*  reduction of volume gain (dbFS)  */
+            threshold:  -45,  /*  open above threshold (dbFS)  */
+            hysteresis: -3,   /*  close below threshold+hysteresis (dbFS)  */
+            reduction:  -30,  /*  reduction of volume gain (dbFS)  */
             interval:   2,    /*  tracking interval (ms)  */
             attack:     4,    /*  time to attack/clamp-up volume (ms)  */
             hold:       40,   /*  time to hold volume after it dropped below threshold+hysteresis (ms)  */
-            release:    20    /*  time to release/clamp-down volume (ms)  */
+            release:    200   /*  time to release/clamp-down volume (ms)  */
         }, params)
 
-        /*  leverage Level Meter node for determining volume level  */
+        /*  leverage Meter node for determining volume level  */
         const meter = new AudioNodeMeter(context, {
-            fftSize:               2048,
-            minDecibels:           -120,
+            fftSize:               512,
+            minDecibels:           -94,
             maxDecibels:           0,
-            smoothingTimeConstant: 0.0,
-            intervalTime:          params.interval,
-            intervalLength:        1
+            smoothingTimeConstant: 0.8,
+            intervalTime:          2,
+            intervalCount:         25
         })
@@ -62,5 +62,7 @@
         let timer = null
+        const gainOpen   = 1.0
+        const gainClosed = dBFSToGain(params.reduction)
         const controlGain = () => {
-            /*  determine current level  */
-            const level = meter.stat().lvlAvg
+            /*  determine current average level  */
+            const level = meter.stat().rmsM
 
@@ -72,3 +74,4 @@ /*  dispatch according to current state  */
                     state = "attack"
-                    gain.gain.exponentialRampToValueAtTime(1.0, context.currentTime + params.attack / 1000)
+                    gain.gain.cancelScheduledValues(context.currentTime)
+                    gain.gain.linearRampToValueAtTime(gainOpen, context.currentTime + params.attack / 1000)
                     if (timer !== null)
@@ -82,2 +85,15 @@ clearTimeout(timer)
             }
+            else if (state === "attack") {
+                if (level < params.threshold + params.hysteresis) {
+                    /*  re-close again with a re-release  */
+                    state = "release"
+                    gain.gain.cancelScheduledValues(context.currentTime)
+                    gain.gain.linearRampToValueAtTime(gainClosed, context.currentTime + params.release / 1000)
+                    if (timer !== null)
+                        clearTimeout(timer)
+                    timer = setTimeout(() => {
+                        state = "closed"
+                    }, params.release)
+                }
+            }
             else if (state === "open") {
@@ -92,4 +108,4 @@ if (level < params.threshold + params.hysteresis) {
                         state = "release"
-                        const reduction = dBFSToGain(params.reduction)
-                        gain.gain.exponentialRampToValueAtTime(reduction, context.currentTime + params.release / 1000)
+                        gain.gain.cancelScheduledValues(context.currentTime)
+                        gain.gain.linearRampToValueAtTime(gainClosed, context.currentTime + params.release / 1000)
                         timer = setTimeout(() => {
@@ -112,5 +128,5 @@ state = "closed"
                     /*  re-open again with a re-attack  */
+                    state = "attack"
                     gain.gain.cancelScheduledValues(context.currentTime)
-                    state = "attack"
-                    gain.gain.linearRampToValueAtTime(1.0, context.currentTime + params.attack / 1000)
+                    gain.gain.linearRampToValueAtTime(gainClosed, context.currentTime + params.attack / 1000)
                     if (timer !== null)
@@ -117,0 +133,0 @@ clearTimeout(timer)

src/audio-node-suite.d.ts

@@ -26,15 +26,16 @@ /*!
 declare module "AudioNodeSuite" {
-    /*  Composite `AudioNode` subclass by wrapping the node chain
-        from an input node to an output node (if not given, it is the same as the input node).
-        The `AudioContext` for the node is taken over from the input node.
+    /*  Composite `AudioNode` subclass by wrapping the node chain from an
+        input node to an output node (if not given, it is the same as the
+        input node). The `AudioContext` for the node is taken over from the
+        input node.
 
-        As an `AudioNode` is an `EventEmitter`, this composite
-        node emits the following `CustomEvent` instances
-        for the calls `result = node.[dis]connect(target)`:
-        `CustomEvent("[dis]connect-before", { detail: { target }
-        })` and `CustomEvent("[dis]connect-after", { detail: {
-        result, target } })`. Similar, for the `node.bypass(enable)`
-        calls, it emits: `CustomEvent("bypass-enable-before")`,
-        `CustomEvent("bypass-enable-after")`, `CustomEvent("bypass-disable-before")`,
-        or `CustomEvent("bypass-disable-after")`.  */
+        As an `AudioNode` is an `EventEmitter`, this composite node emits the
+        following `CustomEvent` instances for the calls `result = node.[dis]connect(target)`:
+        `CustomEvent("[dis]connect-before", { detail: { target } })` and
+        `CustomEvent("[dis]connect-after", { detail: { result, target } })`.
+        Similar, for the `node.bypass(enable)` calls, it emits:
+        `CustomEvent("bypass-enable-before")`,
+        `CustomEvent("bypass-enable-after")`,
+        `CustomEvent("bypass-disable-before")`, or
+        `CustomEvent("bypass-disable-after")`.  */
     export class AudioNodeComposite extends AudioNode {
@@ -50,3 +51,18 @@ public constructor(
 
-    /*  standard `AudioNode` for convenient Gain control.  */
+    /*  `AudioNode` for convenient noise generation.
+        White noise is random amplitudes across the entire frequency range, and
+        pink noise is random amplitudes across the entire frequency range and
+        where the amplitudes of the higher frequences are less strong than the low frequences.  */
+    export class AudioNodeNoise extends AudioNode {
+        public constructor(
+            context: AudioContext,   /*  context to associate  */
+            params?: {
+                type?:     string,   /*  type of noise ("white" or "pink") (default: "pink"),  */
+                channels?: number    /*  number of audio channels (default: 1)  */
+            }
+        )
+    }
+
+    /*  `AudioNode` for convenient Gain control
+        which acts on decibels instead of ampliture gain.  */
     export class AudioNodeGain extends AudioNode {
@@ -56,8 +72,12 @@ public constructor(
             params?: {
-                gain: number         /*  decibel to change the gain (default: 0)  */
+                gain?: number        /*  decibel to change the gain (default: 0)  */
             }
         )
+        adjustGainDecibel(
+            db:  number,             /* target decibel  */
+            ms?: number              /* linear adjust time in milliseconds  */
+        ): void
     }
 
-    /*  standard `AudioNode` for convenient Compressor effect.  */
+    /*  `AudioNode` for convenient Compressor effect.  */
     export class AudioNodeCompressor extends AudioNode {
@@ -67,7 +87,7 @@ public constructor(
             params?: {
-                threshold: number,   /*  threshold in decibel to compress above (default: -16.0),  */
-                attack:    number,   /*  time in seconds to attack/clamp-up volume (default: 0.003)  */
-                release:   number,   /*  time in seconds to release/clamp-down volume (default: 0.400)  */
-                knee:      number,   /*  smoothing "knee" in decibels at threshold (default: 3.0)  */
-                ratio:     number    /*  ratio for decibels to compress above threshold (default: 2.0)  */
+                threshold?: number,  /*  threshold in decibel to compress above (default: -16.0),  */
+                attack?:    number,  /*  time in seconds to attack/clamp-up volume (default: 0.003)  */
+                release?:   number,  /*  time in seconds to release/clamp-down volume (default: 0.400)  */
+                knee?:      number,  /*  smoothing "knee" in decibels at threshold (default: 3.0)  */
+                ratio?:     number   /*  ratio for decibels to compress above threshold (default: 2)  */
             }
@@ -77,3 +97,3 @@ )
 
-    /*  standard `AudioNode` for convenient Limiter effect.
+    /*  `AudioNode` for convenient Limiter effect.
         (effectively, a maximum Compressor near the clipping zone)  */
@@ -84,7 +104,7 @@ export class AudioNodeLimiter extends AudioNode {
             params?: {
-                threshold: number,   /*  threshold in decibel to compress above (default: -3.0),  */
-                attack:    number,   /*  time in seconds to attack/clamp-up volume (default: 0.003)  */
-                release:   number,   /*  time in seconds to release/clamp-down volume (default: 0.050)  */
-                knee:      number,   /*  smoothing "knee" in decibels at threshold (default: 0.0)  */
-                ratio:     number    /*  ratio for decibels to compress above threshold (default: 20.0)  */
+                threshold?: number,  /*  threshold in decibel to compress above (default: -3.0),  */
+                attack?:    number,  /*  time in seconds to attack/clamp-up volume (default: 0.001)  */
+                release?:   number,  /*  time in seconds to release/clamp-down volume (default: 0.050)  */
+                knee?:      number,  /*  smoothing "knee" in decibels at threshold (default: 0.0)  */
+                ratio?:     number   /*  ratio for decibels to compress above threshold (default: 20)  */
             }
@@ -94,3 +114,3 @@ )
 
-    /*  standard `AudioNode` for multi-band parameteric equalizer.  */
+    /*  `AudioNode` for parametric multi-band equalizer.  */
     export class AudioNodeEqualizer extends AudioNodeComposite {
@@ -100,8 +120,8 @@ public constructor(
             params?: {
-                bands: {
-                    type:  string,   /*  type of Biquad filter (default: "peaking"),  */
-                    freq:  number,   /*  base frequency to act on (default: 64*2^i)  */
-                    q:     number,   /*  Q factor to apply (default: 1.0)  */
+                bands?: Array<{
+                    type?: string,   /*  type of Biquad filter (default: "peaking"),  */
+                    freq?: number,   /*  base frequency to act on (default: 64*2^i)  */
+                    q?:    number,   /*  Q factor to apply (default: 1.0)  */
                     gain?: number    /*  gain to apply (default: 1.0)  */
-                }[]
+                }>
             }
@@ -111,13 +131,13 @@ )
 
-    /*  standard `AudioNode` for meter, measuring the volume.  */
+    /*  `AudioNode` for meter, measuring the amplitude.  */
     export class AudioNodeMeter extends AudioNode {
         public constructor(
-            context: AudioContext,   /*  context to associate  */
+            context: AudioContext,              /*  context to associate  */
             params?: {
-                fftSize:               number, /*  FFT size (default: 2048)  */
-                minDecibels:           number, /*  FFT minimum decibels (default: -100)  */
-                maxDecibels:           number, /*  FFT maximum decibels (default: 0)  */
-                smoothingTimeConstant: number, /*  FFT smoothing time constant (default: 0.8)  */
-                intervalTime:          number, /*  interval time in milliseconds to act (default: 1000 / 120)  */
-                intervalLength:        number  /*  interval length for average calculations (default: 100)  */
+                fftSize?:               number, /*  FFT size (default: 512)  */
+                minDecibels?:           number, /*  FFT minimum decibels (default: -94)  */
+                maxDecibels?:           number, /*  FFT maximum decibels (default: 0)  */
+                smoothingTimeConstant?: number, /*  FFT smoothing time constant (default: 0.8)  */
+                intervalTime?:          number, /*  interval time in milliseconds to act (default: 3)  */
+                intervalCount?:         number  /*  interval count for average calculations (default: 100)  */
             }
@@ -127,14 +147,14 @@ )
 
-    /*  standard `AudioNode` for noise gate.  */
-    export class AudioNodeMeter extends AudioNodeComposite {
+    /*  `AudioNode` for noise gate.  */
+    export class AudioNodeGate extends AudioNode {
         public constructor(
-            context: AudioContext,   /*  context to associate  */
+            context: AudioContext,    /*  context to associate  */
             params?: {
-                threshold:  number,  /* open above threshold (dbFS) (default: -50)  */
-                hysteresis: number,  /* close below threshold+hysteresis (dbFS) (default: -6)  */
-                reduction:  number,  /* reduction of volume gain (dbFS) (default: -50)  */
-                interval:   number,  /* tracking interval (ms) (default: 2)  */
-                attack:     number,  /* time to attack/clamp-up volume (ms) (default: 4) */
-                hold:       number,  /* time to hold volume after it dropped below threshold+hysteresis (ms) (default: 40)  */
-                release:    number   /* time to release/clamp-down volume (ms) (default: 20)  */
+                threshold?:  number,  /*  open above threshold (dbFS) (default: -45)  */
+                hysteresis?: number,  /*  close below threshold+hysteresis (dbFS) (default: -3)  */
+                reduction?:  number,  /*  reduction of volume gain (dbFS) (default: -30)  */
+                interval?:   number,  /*  tracking interval (ms) (default: 2)  */
+                attack?:     number,  /*  time to attack/clamp-up volume (ms) (default: 4) */
+                hold?:       number,  /*  time to hold volume after it dropped below threshold+hysteresis (ms) (default: 40)  */
+                release?:    number   /*  time to release/clamp-down volume (ms) (default: 200)  */
             }
@@ -144,3 +164,24 @@ )
 
-    /*  standard `AudioNode` for spectrum visualization.  */
+    /*  `AudioNode` for amplitude visualization.  */
+    export class AudioNodeAmplitude extends AudioNode {
+        public constructor(
+            context: AudioContext,               /*  context to associate  */
+            params?: {
+                fftSize?:               number,   /*  FFT size (default: 512)  */
+                minDecibels?:           number,   /*  FFT minimum decibels (default: -60)  */
+                maxDecibels?:           number,   /*  FFT maximum decibels (default: 0)  */
+                smoothingTimeConstant?: number,   /*  FFT smoothing time constant (default: 0.8)  */
+                intervalTime?:          number,   /*  interval time in milliseconds to act (default: 1000 / 60)  */
+                intervalLength?:        number    /*  interval length for average calculations (default: 300 / (1000 / 60))  */
+                decibelBars?:           number[], /*  list of decibel layers to draw (default: [ -60, -45, -21, -6 ])  */
+                colorBars?:             string[], /*  list of color   layers to draw (default: [ "#306090", "#00b000", "#e0d000", "#e03030" ])  */
+                colorBarsDeactive?:     string[], /*  list of color   layers to draw (default: [ "#606060", "#808080", "#a0a0a0", "#c0c0c0" ])  */
+                colorRMS?:              string,   /*  color of the RMS decibel (default: "#ffffff")  */
+                colorBackground?:       string,   /*  color of the background (default: "#000000")  */
+                horizontal?:            boolean   /*  whether to draw horizontall instead of vertically (default: false)  */
+            }
+        )
+    }
+
+    /*  `AudioNode` for spectrum visualization ("spectrogram" style).  */
     export class AudioNodeSpectrum extends AudioNode {
@@ -150,16 +191,14 @@ public constructor(
             params?: {
-                fftSize:               number,   /*  FFT size (default: 2048)  */
-                minDecibels:           number,   /*  FFT minimum decibels (default: -100)  */
-                maxDecibels:           number,   /*  FFT maximum decibels (default: 0)  */
-                smoothingTimeConstant: number,   /*  FFT smoothing time constant (default: 0.8)  */
-                intervalTime:          number,   /*  interval time in milliseconds to act (default: 1000 / 60)  */
-                intervalLength:        number    /*  interval length for average calculations (default: 10)  */
-                layers:                number[], /*  list of decibel layers to draw (default: [ -120, -90, -60, -30 ])  */
-                slices:                number[], /*  list of frequency slices to draw (default: [ 40, 80, 160, 320, 640, 1280, 2560, 5120, 10240, 20480 ])  */
-                colorBackground:       string,   /*  color of the background (default: "#000000")  */
-                colorBars:             string,   /*  color of the spectrum bars (default: "#00cc00")  */
-                colorAvg:              string,   /*  color of the average maximum decibel (default: "#00ff00")  */
-                colorLayers:           string,   /*  color of the decibel layer lines (default: "#009900")  */
-                colorSlices:           string,   /*  color of the frequency slice lines (default: "#009900")  */
-                logarithmic:           boolean   /*  whether to use logarithmic scale for frequencies (default: true)  */
+                fftSize?:               number,   /*  FFT size (default: 8192)  */
+                minDecibels?:           number,   /*  FFT minimum decibels (default: -144)  */
+                maxDecibels?:           number,   /*  FFT maximum decibels (default: 0)  */
+                smoothingTimeConstant?: number,   /*  FFT smoothing time constant (default: 0.8)  */
+                intervalTime?:          number,   /*  interval time in milliseconds to act (default: 1000 / 60)  */
+                layers?:                number[], /*  list of decibel layers to draw (default: [ -120, -90, -60, -50, -40, -30, -20, -10 ])  */
+                slices?:                number[], /*  list of frequency slices to draw (default: [ 40, 80, 160, 320, 640, 1280, 2560, 5120, 10240, 20480 ])  */
+                colorBackground?:       string,   /*  color of the background (default: "#000000")  */
+                colorBars?:             string,   /*  color of the spectrum bars (default: "#00cc00")  */
+                colorLayers?:           string,   /*  color of the decibel layer lines (default: "#009900")  */
+                colorSlices?:           string,   /*  color of the frequency slice lines (default: "#009900")  */
+                logarithmic?:           boolean   /*  whether to use logarithmic scale for frequencies (default: true)  */
             }
@@ -169,3 +208,3 @@ )
 
-    /*  standard `AudioNode` for opinionated voice filtering.  */
+    /*  `AudioNode` for opinionated voice filtering.  */
     export class AudioNodeVoice extends AudioNodeComposite {
@@ -175,7 +214,11 @@ public constructor(
             params?: {
-                gain: number         /*  additional decibel to change the gain after processing (default: 0)  */
+                gain?: number        /*  additional decibel to change the gain after processing (default: 0)  */
             }
         )
+        adjustGainDecibel(
+            db:  number,             /* target decibel  */
+            ms?: number              /* linear adjust time in milliseconds  */
+        ): void
     }
 }
 

src/audio-node-suite.js

@@ -30,2 +30,3 @@ /*
 import {
+    AudioNodeNoise,
     AudioNodeGain,
@@ -45,7 +46,10 @@ AudioNodeCompressor,
 import {
+    AudioNodeAmplitude
+} from "./audio-node-suite-7-amplitude.js"
+import {
     AudioNodeSpectrum
-} from "./audio-node-suite-7-spectrum.js"
+} from "./audio-node-suite-8-spectrum.js"
 import {
     AudioNodeVoice
-} from "./audio-node-suite-8-voice.js"
+} from "./audio-node-suite-9-voice.js"
 
@@ -56,2 +60,3 @@ /*  export the traditional way for interoperability reasons
     AudioNodeComposite,
+    AudioNodeNoise,
     AudioNodeGain,
@@ -63,2 +68,3 @@ AudioNodeCompressor,
     AudioNodeGate,
+    AudioNodeAmplitude,
     AudioNodeSpectrum,
@@ -65,0 +71,0 @@ AudioNodeVoice

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