接口 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.

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;
}

属性

duration length numberOfChannels sampleRate

方法

copyFromChannel copyToChannel getChannelData

属性

只读duration

duration: number

只读length

length: number

只读numberOfChannels

numberOfChannels: number

只读sampleRate

sampleRate: number

方法

copyFromChannel

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

  • 参数

    • destination: Float32Array
    • channelNumber: number
    • 可选bufferOffset: number

    返回 void

copyToChannel

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

  • 参数

    • source: Float32Array
    • channelNumber: number
    • 可选bufferOffset: number

    返回 void

getChannelData

  • getChannelData(channel): Float32Array

  • 参数

    • channel: number

    返回 Float32Array

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目录

属性
方法