Class AudioDecoder

The AudioDecoder is used as a replacement for the Web Audio API decoding and makes use of web workers.

Index

Constructors

Properties

onChannelDataCalculate started

Accessors

channelDataFactor

Methods

createOriginalSample destroy getChunkedChannelData minimizeChannelData requeststopDecoding

Constructors

constructor

new AudioDecoder(
    format: AudioFormat,
    audioInfo: AudioInfo,
    arrayBuffer: ArrayBuffer,
): AudioDecoder
Parameters
- format: AudioFormat
- audioInfo: AudioInfo
- arrayBuffer: ArrayBuffer
Returns AudioDecoder
- Defined in audio/audio-decoder.ts:61

Properties

onChannelDataCalculate

onChannelDataCalculate: Subject<
{ progress: number; result?: Float32Array<ArrayBufferLike> },
> = ...

triggers as soon as new channel data was read. Last event has progress 1.

started

started: number = 0

Accessors

channelDataFactor

get channelDataFactor(): number
Returns number
- Defined in audio/audio-decoder.ts:57

Methods

createOriginalSample

createOriginalSample(sample: number): SampleUnit
Parameters
- sample: number
Returns SampleUnit
- Defined in audio/audio-decoder.ts:289

destroy

destroy(): void
Returns void
- Defined in audio/audio-decoder.ts:257

getChunkedChannelData

getChunkedChannelData(
sampleStart: SampleUnit,
sampleDur: SampleUnit,
): Promise<void>
decodes a WAVE audio file and minimizes according to calculated channel data factor.
Parameters
- sampleStart: SampleUnit
- sampleDur: SampleUnit
Returns Promise<void>
- Defined in audio/audio-decoder.ts:143

minimizeChannelData

minimizeChannelData(
channelData: Float32Array,
factor: number,
): Promise<Float32Array<ArrayBufferLike>>
Parameters
- channelData: Float32Array
- factor: number
Returns Promise<Float32Array<ArrayBufferLike>>
- Defined in audio/audio-decoder.ts:265

requeststopDecoding

requeststopDecoding(): void
Returns void
- Defined in audio/audio-decoder.ts:293