package vosk.tts

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• rpc UtteranceSynthesis (UtteranceSynthesisRequest, stream UtteranceSynthesisResponse)

  tts_service.proto:93

  Synthesizing text into speech.

  message UtteranceSynthesisRequest

  tts_service.proto:72

  • string model = 1

    The name of the model. Specifies basic synthesis functionality. Currently should be empty. Do not use it.

  • oneof Utterance

    Text to synthesis, one of text synthesis markups.

    • string text = 2

      Raw text (e.g. "Hello, Alice").

  • repeated Hints hints = 3

    Optional hints for synthesis.

  • optional AudioFormatOptions output_audio_spec = 4

    Optional. Default: 22050 Hz, linear 16-bit signed little-endian PCM, with WAV header

  message UtteranceSynthesisResponse

  tts_service.proto:46

  • optional AudioChunk audio_chunk = 1

    Part of synthesized audio.

Used in: UtteranceSynthesisResponse

• bytes data = 1

  Sequence of bytes of the synthesized audio in format specified in output_audio_spec.

Used in: UtteranceSynthesisRequest

• oneof AudioFormat

  • RawAudio raw_audio = 1

    The audio format specified in request parameters.

  • ContainerAudio container_audio = 2

    The audio format specified inside the container metadata.

Used in: AudioFormatOptions

• ContainerAudio.ContainerAudioType container_audio_type = 1

Used in: ContainerAudio

• CONTAINER_AUDIO_TYPE_UNSPECIFIED = 0

• WAV = 1

  Audio bit depth 16-bit signed little-endian (Linear PCM).

• OGG_OPUS = 2

  Data is encoded using the OPUS audio codec and compressed using the OGG container format.

• MP3 = 3

  Data is encoded using MPEG-1/2 Layer III and compressed using the MP3 container format.

Used in: UtteranceSynthesisRequest

• oneof Hint

  The hint for TTS engine to specify synthesised audio characteristics.

  • int64 speaker_id = 1

    ID of speaker to use.

  • double speech_rate = 2

    Hint to change speech rate.

  • string role = 3

    Hint to specify pronunciation character for the speaker.

Used in: AudioFormatOptions

• RawAudio.AudioEncoding audio_encoding = 1

  Encoding type.

• int64 sample_rate_hertz = 2

  Sampling frequency of the signal.

Used in: RawAudio

• AUDIO_ENCODING_UNSPECIFIED = 0

• LINEAR16_PCM = 1

  Audio bit depth 16-bit signed little-endian (Linear PCM).