Class AudioManager

constructor

• new AudioManager(audioMechanism: AudioMechanism): AudioManager

  initializes audio manager

  Parameters

  • audioMechanism: AudioMechanism

  Returns AudioManager

time

audioMechanism

• get audioMechanism(): AudioMechanism | undefined

  Returns AudioMechanism | undefined

channel

• get channel(): Float32Array<ArrayBufferLike> | undefined

  Returns Float32Array<ArrayBufferLike> | undefined

channelDataFactor

• get channelDataFactor(): number

  Returns number

gainNode

• get gainNode(): any

  Returns any

isPlaying

• get isPlaying(): boolean

  Returns boolean

mainchunk

• get mainchunk(): AudioChunk

  Returns AudioChunk

onChannelDataChange

• get onChannelDataChange(): Subject<void>

  Returns Subject<void>

playOnHover

• get playOnHover(): boolean

  Returns boolean

playPosition

• get playPosition(): SampleUnit

  Returns SampleUnit

• set playPosition(value: SampleUnit): void

  Parameters

  • value: SampleUnit

  Returns void

resource

• get resource(): AudioResource

  Returns AudioResource

sampleRate

• get sampleRate(): number

  Returns number

state

• get state(): PlayBackStatus

  Returns PlayBackStatus

statechange

• get statechange(): Subject<PlayBackStatus>

  Returns Subject<PlayBackStatus>

addChunk

• addChunk(chunk: AudioChunk): void

  adds an audio chunk to the list of chunks.

  Parameters

  • chunk: AudioChunk

  Returns void

createNewAudioChunk

• createNewAudioChunk(
      time: AudioSelection,
      selection?: AudioSelection,
  ): AudioChunk | undefined

  creates a new audio chunk entry from a given selection and adds it to the list of chunks.

  Parameters

  • time: AudioSelection
  • Optionalselection: AudioSelection

  Returns AudioChunk | undefined

createSampleUnit

• createSampleUnit(sample: number): SampleUnit

  creates a new SampleUnit

  Parameters

  • sample: number

  Returns SampleUnit

destroy

• destroy(disconnect?: boolean): Promise<void>

  destroys the audio manager

  Parameters

  • disconnect: boolean = true

  Returns Promise<void>

pausePlayback

• pausePlayback(): Promise<void>

  pauses the audio playback

  Returns Promise<void>

removeChunk

• removeChunk(chunk: AudioChunk): void

  Parameters

  • chunk: AudioChunk

  Returns void

startPlayback

• startPlayback(
      audioSelection: AudioSelection,
      volume: number,
      playbackRate: number,
      playOnHover?: boolean,
  ): Promise<void>

  starts audio playback using a given selection.

  Parameters

  • audioSelection: AudioSelection
  • volume: number
  • playbackRate: number
  • playOnHover: boolean = false

  Returns Promise<void>

stopDecoding

• stopDecoding(): void

  Returns void

stopPlayback

• stopPlayback(): Promise<void>

  stops the audio playback.

  Returns Promise<void>

Staticcreate

• create(
      filename: string,
      type: string,
      buffer: ArrayBuffer,
      url?: string,
      audioMechanism?: AudioMechanism,
  ): Observable<{ audioManager: AudioManager; progress: number }>

  creates a new audio manager and reports the progress using an observable. The initialization includes audio decoding.

  Parameters

  • filename: string
  • type: string
  • buffer: ArrayBuffer
  • Optionalurl: string
  • audioMechanism: AudioMechanism = ...

  Returns Observable<{ audioManager: AudioManager; progress: number }>

StaticgetFileFormat

• getFileFormat(
      extension: string,
      audioformats: AudioFormat[],
  ): AudioFormat | undefined

  returns the FileFormat instance relative of the file extension or undefined if not found.

  Parameters

  • extension: string

    file extension

  • audioformats: AudioFormat[]

    list of supported audio formats

  Returns AudioFormat | undefined

StaticgetNumberOfDataParts

• getNumberOfDataParts(fileSize: number): number

  returns the number of data parts

  Parameters

  • fileSize: number

  Returns number

StaticisValidAudioFileName

• isValidAudioFileName(filename: string, audioFormats: AudioFormat[]): boolean

  checks if there is an audio format that matches with the extension of the audio file.

  Parameters

  • filename: string
  • audioFormats: AudioFormat[]

  Returns boolean