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aframe-audioanalyser-component
Advanced tools
aframe-audioanalyser-component
Audio visualizations in A-Frame using Web Audio (AnalyserNode)
aframe-audioanalyser-component
Audio visualizations for A-Frame using Web Audio (AnalyserNode).
These components mostly provide processed Web Audio data (beat detection,
levels, volume, waveform). How that is visualized is up to you (by writing
components that use this data to have a visual effect). Components will generally
implement the tick handler and read the analyser data. See the examples for
some example visualization components.
Not tested on mobile.
Properties
| Property | Description | Default Value |
|---|---|---|
| beatDetectionDecay | How fast to decay the beat threshold. | 0.99 |
| beatDetectionMinVolume | Minimum volume for beat. | 15 |
| beatDetectionThrottle | Minimum time to to wait between beats. | 250 |
| cache | Whether or not to cache audio buffers. | false |
| enableBeatDetection | Whether or not to detect beats. Disable if not using. | true |
| enableLevels | Whether or not to store frequency data. Disable if not using. | true |
| enableVolume | Whether or not to calculate average volume. Disable if not using. | true |
| enableWaveform | Whether or not to store waveform data. Disable if not using. | true |
| fftSize | Frequency domain. | 2048 |
| smoothingTimeConstant | How smooth the frequency data is returned. | 0.8 |
| src | Selector to an audio element or path to audio file. | '' |
| unique | Whether to share the audio instance with other visualizing entities. | false |
Members
| Member | Description | Type |
|---|---|---|
| analyser | Web Audio AnalyserNode | AnalyserNode |
| volume | Whether or not to store frequency data. Disable if not using. | number |
| waveform | Whether or not to calculate average volume. Disable if not using. | Uint8Array |
| levels | Whether or not to store waveform data. Disable if not using. | Uint8Array |
To access the analyser node:
el.components.audioanalyser.analyser;
Events
| Event Name | Description |
|---|---|
| audioanalyserbeat | Beat detected with beat detection. |
| audioanalyserready | AnalyserNode initialized. |
Usage
Browser Installation
Install and use by directly including the browser files:
<head>
<title>Audio Visualizer</title>
<script src="https://aframe.io/releases/0.9.0/aframe.min.js"></script>
<script src="https://unpkg.com/aframe-audioanalyser-component@5.4.0/dist/aframe-audioanalyser-component.min.js"></script>
</head>
<body>
<a-scene>
<a-assets>
<audio id="song" src="rickroll.mp3" autoplay loop></audio>
</a-assets>
<a-entity
audioanalyser="src: #song"
component-that-does-stuff-with-audio-analyser-data
></a-entity>
</a-scene>
</body>
NPM Installation
Install via NPM:
npm install aframe-audioanalyser-component
Then register and use.
require('aframe');
require('aframe-audioanalyser-component');
FAQs
Audio visualizations in A-Frame using Web Audio (AnalyserNode)
We found that aframe-audioanalyser-component demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Package last updated on 05 Jun 2019
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