Class SpeechTranscriptionConfig (1.16.3)

Config for SPEECH_TRANSCRIPTION.

Optional. Maximum number of recognition hypotheses to be returned. Specifically, the maximum number of SpeechRecognitionAlternative messages within each SpeechTranscription. The server may return fewer than max_alternatives. Valid values are 0-30. A value of 0 or 1 will return a maximum of one. If omitted, will return a maximum of one.

Optional. A means to provide context to assist the speech recognition.

Optional. For file formats, such as MXF or MKV, supporting multiple audio tracks, specify up to two tracks. Default: track 0.

Optional. If set, specifies the estimated number of speakers in the conversation. If not set, defaults to ‘2’. Ignored unless enable_speaker_diarization is set to true.