public LongRunningRecognizeResponse TranscribeInCloud(TranscribeParameters transParams)
{
// var speechClient = SpeechClient.Create();
string fileOnCloudStorage = "gs://" + transParams.GoogleCloudBucketName + "/" + transParams.objectName;
RecognitionAudio recogAudio = RecognitionAudio.FromStorageUri(fileOnCloudStorage);
SpeakerDiarizationConfig sdc = new SpeakerDiarizationConfig()
{
EnableSpeakerDiarization = true,
MinSpeakerCount = transParams.MinSpeakerCount,
MaxSpeakerCount = transParams.MaxSpeakerCount
};
var longOperation = speechClient.LongRunningRecognize(new RecognitionConfig()
{
Encoding = RecognitionConfig.Types.AudioEncoding.Flac,
SampleRateHertz = 44100,
EnableWordTimeOffsets = true,
LanguageCode = transParams.language,
EnableAutomaticPunctuation = true,
DiarizationConfig = sdc,
SpeechContexts =
{
new SpeechContext {
Phrases = { transParams.phrases}
}
}
}, recogAudio);
longOperation = longOperation.PollUntilCompleted();
var response = longOperation.Result;
return(response);
}
/** (Re-)initializes the Cloud-based streaming speech recognizer. */
private void ReInitStreamRecognizer()
{
lock (speakerIdBufferLock)
{
speakerIdBufferPos = 0;
}
recogStream = speechClient.StreamingRecognize();
SpeakerDiarizationConfig diarizationConfig = new SpeakerDiarizationConfig()
{
EnableSpeakerDiarization = ENABLE_SPEAKER_DIARIZATION,
MaxSpeakerCount = MAX_SPEAKER_COUNT,
MinSpeakerCount = MIN_SPEAKER_COUNT,
};
recogStream.WriteAsync(new StreamingRecognizeRequest()
{
StreamingConfig = new StreamingRecognitionConfig()
{
Config = new RecognitionConfig()
{
Encoding = RecognitionConfig.Types.AudioEncoding.Linear16,
AudioChannelCount = 1,
SampleRateHertz = audioFormat.SampleRate,
LanguageCode = LANGUAGE_CODE,
DiarizationConfig = diarizationConfig,
},
SingleUtterance = false,
},
});;
Task.Run(async() =>
{
while (await recogStream.GetResponseStream().MoveNextAsync())
{
foreach (var result in recogStream.GetResponseStream().Current.Results)
{
if (result.Alternatives.Count == 0)
{
continue;
}
// Identify the alternative with the highest confidence.
SpeechRecognitionAlternative bestAlt = null;
foreach (var alternative in result.Alternatives)
{
if (bestAlt == null || alternative.Confidence > bestAlt.Confidence)
{
bestAlt = alternative;
}
}
string transcript = bestAlt.Transcript.Trim();
if (transcript.Length == 0)
{
continue;
}
string transcriptInfo =
$"Speech transcript: {DateTime.Now}: \"" +
$"{transcript}\" (confidence={bestAlt.Confidence})";
if (ENABLE_SPEAKER_DIARIZATION)
{
int speakerTag = bestAlt.Words[bestAlt.Words.Count - 1].SpeakerTag;
transcriptInfo += $" (speakerTag={speakerTag})";
}
Debug.WriteLine(transcriptInfo);
if (ENABLE_SPEAKER_DIARIZATION && ENABLE_SPEAKER_ID)
{
recognizeSpeaker(transcript, bestAlt);
}
}
}
});
cummulativeRecogSeconds = 0f;
}
