Class WavFormat

Hierarchy (View Summary)

AudioFormat
- WavFormat

Constructors

constructor

new WavFormat(): WavFormat
Returns WavFormat
Overrides AudioFormat.constructor
- Defined in audio/AudioFormats/wav-format.ts:15

Properties

`Protected`_bitsPerSample

_bitsPerSample: number

`Protected`_blockAlign

_blockAlign: number

`Protected`_byteRate

_byteRate: number

`Protected`_channels

_channels: number

`Protected`_decoder

_decoder: "web-audio" | "octra" = 'octra'

`Protected`_duration

_duration: { samples: number; seconds: number }

`Protected`_filename

_filename: string

`Protected`_mimeType

_mimeType: string

`Protected`_sampleRate

_sampleRate: number

`Protected`_supportedFormats

_supportedFormats: SupportedAudioFormat[]

`Protected`dataStart

dataStart: number = -1

formatConstructor

formatConstructor:
    | Uint8ArrayConstructor
    | Int16ArrayConstructor
    | Int32ArrayConstructor

Accessors

bitsPerSample

get bitsPerSample(): number
Returns number
Inherited from AudioFormat.bitsPerSample
- Defined in audio/AudioFormats/audio-format.ts:53

blockAlign

get blockAlign(): number
Returns number
- Defined in audio/AudioFormats/wav-format.ts:11

byteRate

get byteRate(): number
Returns number
Inherited from AudioFormat.byteRate
- Defined in audio/AudioFormats/audio-format.ts:47

channels

get channels(): number
Returns number
Inherited from AudioFormat.channels
- Defined in audio/AudioFormats/audio-format.ts:41

decoder

get decoder(): "web-audio" | "octra"
Returns "web-audio" | "octra"
Inherited from AudioFormat.decoder
- Defined in audio/AudioFormats/audio-format.ts:23

duration

get duration(): { samples: number; seconds: number }
Returns { samples: number; seconds: number }
Inherited from AudioFormat.duration
- Defined in audio/AudioFormats/audio-format.ts:62

filename

get filename(): string
Returns string
Inherited from AudioFormat.filename
- Defined in audio/AudioFormats/audio-format.ts:29

mimeType

get mimeType(): string
Returns string
Inherited from AudioFormat.mimeType
- Defined in audio/AudioFormats/audio-format.ts:12

sampleRate

get sampleRate(): number
Returns number
Inherited from AudioFormat.sampleRate
- Defined in audio/AudioFormats/audio-format.ts:35

supportedFormats

get supportedFormats(): SupportedAudioFormat[]
Returns SupportedAudioFormat[]
Inherited from AudioFormat.supportedFormats
- Defined in audio/AudioFormats/audio-format.ts:20

Methods

extractDataFromArray

extractDataFromArray(
    sampleStart: number,
    sampleDur: number,
    uint8Array: Uint8Array,
    selectedChannel?: number,
): Promise<IntArray>
cuts the data part of selected samples from an Uint8Array
Parameters
- sampleStart: number
  the start of the extraction
- sampleDur: number
  the duration of the extraction
- uint8Array: Uint8Array
  the array to be read
- OptionalselectedChannel: number
  the selected channel
Returns Promise<IntArray>
- Defined in audio/AudioFormats/wav-format.ts:81

`Protected`getDataChunk

getDataChunk(buffer: ArrayBuffer): ArrayBuffer
Parameters
- buffer: ArrayBuffer
Returns ArrayBuffer
- Defined in audio/AudioFormats/wav-format.ts:203

`Protected`getDataChunkSize

getDataChunkSize(buffer: ArrayBuffer): number
Parameters
- buffer: ArrayBuffer
Returns number
- Defined in audio/AudioFormats/wav-format.ts:196

init

init(filename: string, mimeType: string, buffer: ArrayBuffer): Promise<void>
Parameters
- filename: string
- mimeType: string
- buffer: ArrayBuffer
Returns Promise<void>
Overrides AudioFormat.init
- Defined in audio/AudioFormats/wav-format.ts:25

isValid

isValid(buffer: ArrayBuffer): boolean
checks if it is a valid wave file
Parameters
- buffer: ArrayBuffer
  the audio file's array buffer
Returns boolean
Overrides AudioFormat.isValid
- Defined in audio/AudioFormats/wav-format.ts:54

readAudioInformation

readAudioInformation(buffer: ArrayBuffer): Promise<void>
Parameters
- buffer: ArrayBuffer
Returns Promise<void>
Overrides AudioFormat.readAudioInformation
- Defined in audio/AudioFormats/wav-format.ts:34

`Protected`setBitsPerSample

setBitsPerSample(buffer: ArrayBuffer): void
Parameters
- buffer: ArrayBuffer
Returns void
- Defined in audio/AudioFormats/wav-format.ts:175

`Protected`setBlockAlign

setBlockAlign(buffer: ArrayBuffer): void
Parameters
- buffer: ArrayBuffer
Returns void
- Defined in audio/AudioFormats/wav-format.ts:189

`Protected`setByteRate

setByteRate(buffer: ArrayBuffer): void
Parameters
- buffer: ArrayBuffer
Returns void
- Defined in audio/AudioFormats/wav-format.ts:182

`Protected`setChannels

setChannels(buffer: ArrayBuffer): void
Parameters
- buffer: ArrayBuffer
Returns void
- Defined in audio/AudioFormats/wav-format.ts:168

`Protected`setDuration

setDuration(buffer: ArrayBuffer): void
Parameters
- buffer: ArrayBuffer
Returns void
- Defined in audio/AudioFormats/wav-format.ts:207

`Protected`setSampleRate

setSampleRate(buffer: ArrayBuffer): void
Parameters
- buffer: ArrayBuffer
Returns void
- Defined in audio/AudioFormats/wav-format.ts:161

stopAudioSplitting

stopAudioSplitting(): void
Returns void
- Defined in audio/AudioFormats/wav-format.ts:155