Interface 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;
}

Properties

duration length numberOfChannels sampleRate

Methods

copyFromChannel copyToChannel getChannelData

Properties

Readonly duration

duration: number

MDN Reference

Readonly length

length: number

MDN Reference

Readonly numberOfChannels

numberOfChannels: number

MDN Reference

Readonly sampleRate

sampleRate: number

MDN Reference

Methods

copyFromChannel

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

  • MDN Reference

    Parameters

    • destination: Float32Array
    • channelNumber: number
    • Optional bufferOffset: number

    Returns void

copyToChannel

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

  • MDN Reference

    Parameters

    • source: Float32Array
    • channelNumber: number
    • Optional bufferOffset: number

    Returns void

getChannelData

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durationlengthnumberOfChannelssampleRatecopyFromChannelcopyToChannelgetChannelData