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AudioBuffer

A short audio asset residing in memory, created from an audio file using the AudioContext.decodeAudioData() method, or from raw data using AudioContext.createBuffer(). Once put into an AudioBuffer, the audio can then be played by being passed into an AudioBufferSourceNode.

MDN Reference

interface AudioBuffer {
    duration: number;
    length: number;
    numberOfChannels: number;
    sampleRate: number;
    copyFromChannel(
        destination: Float32Array,
        channelNumber: number,
        bufferOffset?: number,
    ): void;
    copyToChannel(
        source: Float32Array,
        channelNumber: number,
        bufferOffset?: number,
    ): void;
    getChannelData(channel: number): Float32Array;
}

Index

Properties

<internal>.AudioBuffer.duration<internal>.AudioBuffer.length<internal>.AudioBuffer.numberOfChannels<internal>.AudioBuffer.sampleRate

Methods

<internal>.AudioBuffer.copyFromChannel<internal>.AudioBuffer.copyToChannel<internal>.AudioBuffer.getChannelData

Properties

duration: number

MDN Reference

length: number

MDN Reference

numberOfChannels: number

MDN Reference

sampleRate: number

MDN Reference

Methods

copyFromChannel(
    destination: Float32Array,
    channelNumber: number,
    bufferOffset?: number,
): void

MDN Reference

Parameters

  • destination: Float32Array
  • channelNumber: number
  • OptionalbufferOffset: number

Returns void

copyToChannel(
    source: Float32Array,
    channelNumber: number,
    bufferOffset?: number,
): void

MDN Reference

Parameters

  • source: Float32Array
  • channelNumber: number
  • OptionalbufferOffset: number

Returns void

getChannelData(channel: number): Float32Array

MDN Reference

Parameters

  • channel: number

Returns Float32Array