		# audio-buffer [![Build Status](https://travis-ci.org/audiojs/audio-buffer.svg?branch=master)](https://travis-ci.org/audiojs/audio-buffer) [![stable](http://badges.github.io/stability-badges/dist/stable.svg)](http://github.com/badges/stability-badges)

		[AudioBuffer](https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer) optimal implementation for node. In browser provides just a useful constructor for web-audio’s _AudioBuffer_, in node is also useful instead of _Buffer_ in audio streams.
		[AudioBuffer](https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer) ponyfill. Provides useful constructor for Web-Audio API _AudioBuffer_, if available, otherwise provides optimal _AudioBuffer_ implementation for node/browsers. Useful instead of _Buffer_ in audio streams (see [@audiojs](https://github.com/audiojs) components).

		[![build status](https://img.shields.io/travis/audiojs/audio-buffer.svg)](https://travis-ci.org/audiojs/audio-buffer)
		![stability-stable](https://img.shields.io/badge/stability-stable-green.svg)

		## Usage
		@@ -13,3 +10,3 @@
		```js
		var AudioBuffer = require('audio-buffer');
		var AudioBuffer = require('audio-buffer')

		@@ -19,24 +16,24 @@ //Create audio buffer from a data source or of a length.
		//It can be Array, TypedArray, ArrayBuffer, Buffer, AudioBuffer, DataView, NDArray etc.
		var buffer = new AudioBuffer(channels?, data\|length, sampleRate?);
		var buffer = new AudioBuffer(channels = 2, data\|length, sampleRate = 44100)

		//Duration of the underlying audio data, in seconds
		buffer.duration;
		buffer.duration

		//Number of samples per channel
		buffer.length;
		buffer.length

		//Default sample rate is 44100
		buffer.sampleRate;
		buffer.sampleRate

		//Default number of channels is 2
		buffer.numberOfChannels;
		buffer.numberOfChannels

		//Get array containing the data for the channel (not copied)
		buffer.getChannelData(channel);
		buffer.getChannelData(channel)

		//Place data from channel to destination Float32Array
		buffer.copyFromChannel(destination, channelNumber, startInChannel?);
		buffer.copyFromChannel(destination, channelNumber, startInChannel = 0)

		//Place data from source Float32Array to the channel
		buffer.copyToChannel(source, channelNumber, startInChannel?);
		buffer.copyToChannel(source, channelNumber, startInChannel = 0)

		@@ -46,18 +43,21 @@

		//Type of array for data. Float64 is faster for last node/browsers.
		AudioBuffer.FloatArray = Float64Array;
		//Type of array for data. Float64Array is faster for modern node/browsers.
		AudioBuffer.FloatArray = Float64Array

		//In browser, you can set the audio context (online/offline).
		//By default it is taken from audio-context module.
		AudioBuffer.context;
		//In browser, you can set custom audio context (online/offline).
		AudioBuffer.context = require('audio-context')

		//Whether WebAudioAPI Buffer should be created, if possible, instead of own instance
		//In browser it is true, if WAA is available.
		AudioBuffer.isWAA;
		//Whether WebAudioAPI AudioBuffer should be created, if avail, instead of polyfilled structure
		AudioBuffer.isWAA = true
		```

		## Related
		## See also

		* [audio-buffer-utils](https://github.com/audiojs/audio-buffer-utils) — utils for audio buffers
		* [pcm-util](https://npmjs.org/package/pcm-util) — utils for audio format convertions.

		## Similar

		* [ndsamples](https://github.com/livejs/ndsamples) — audio-wrapper for ndarrays. A somewhat alternative approach to wrap audio data, based on ndarrays, used by some modules in [livejs](https://github.com/livejs).
		* [1](https://www.npmjs.com/package/audiobuffer), [2](https://www.npmjs.com/package/audio-buffer), [3](https://github.com/sebpiq/node-web-audio-api/blob/master/lib/AudioBuffer.js), [4](https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer) — other AudioBuffer implementations.
		* [audiodata](https://www.npmjs.com/package/audiodata) alternative data holder from @mohayonao.

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