public TranscribeResponse GetTranscribeResponse(RepeatedField <SpeechRecognitionResult> results)
{
TranscribeResponse transcript = new TranscribeResponse();
foreach (var result in results)
{
foreach (var alternative in result.Alternatives)
{
Console.WriteLine($"Transcript: { alternative.Transcript}");
Console.WriteLine("Word details:");
Console.WriteLine($" Word count:{alternative.Words.Count}");
RspAlternative alt = new RspAlternative(alternative.Transcript)
{
wordCount = alternative.Words.Count
};
int count = 1;
foreach (var item in alternative.Words)
{
alt.words.Add(new RspWord(item.Word, ParseDuration(item.StartTime),
ParseDuration(item.EndTime), count++));
Console.WriteLine($" {item.Word}");
Console.WriteLine($" WordStartTime: {item.StartTime}");
Console.WriteLine($" WordEndTime: {item.EndTime}");
}
transcript.alternatives.Add(alt);
}
}
return(transcript);
}
public TranscribeResponse TranscribeInCloud(string objectName, string language)
{
var speech = SpeechClient.Create();
string fileOnCloudStorage = "gs://" + GoogleCloudBucketName + "/" + objectName;
RecognitionAudio recogAudio = RecognitionAudio.FromStorageUri(fileOnCloudStorage);
var longOperation = speech.LongRunningRecognize(new RecognitionConfig()
{
Encoding = RecognitionConfig.Types.AudioEncoding.Flac,
SampleRateHertz = 48000,
EnableWordTimeOffsets = true,
LanguageCode = language,
}, recogAudio);
longOperation = longOperation.PollUntilCompleted();
var response = longOperation.Result;
// Transform the Google response into a more usable object.
// TranscribeResponse transcript = GetLongTranscribeResponse(response);
TranscribeResponse transcript = new TranscribeResponse();
foreach (var result in response.Results)
{
foreach (var alternative in result.Alternatives)
{
Console.WriteLine($"Transcript: { alternative.Transcript}");
Console.WriteLine("Word details:");
Console.WriteLine($" Word count:{alternative.Words.Count}");
RspAlternative alt = new RspAlternative(alternative.Transcript)
{
wordCount = alternative.Words.Count
};
int count = 1;
foreach (var item in alternative.Words)
{
alt.words.Add(new RspWord(item.Word, ParseDuration(item.StartTime),
ParseDuration(item.EndTime), count++));
Console.WriteLine($" {item.Word}");
Console.WriteLine($" WordStartTime: {item.StartTime}");
Console.WriteLine($" WordEndTime: {item.EndTime}");
}
transcript.alternatives.Add(alt);
}
}
return(transcript);
}
/// <param name="language">Language of the audio. This is the ISO 639 code</param>
/// The audio file name may have been shortened. For the cloud object name, we want to use the original full
/// name of the video, but change the extension to ".flac".
public TranscribeResponse MoveToCloudAndTranscribe(string audiofilePath, string videoFileName, string language)
{
string objectName = Path.GetFileNameWithoutExtension(videoFileName) + ".flac";
GoogleBucket gb = new GoogleBucket();
if (config.UseAudioFileAlreadyInCloud)
{
// Only upload if not in cloud
if (!gb.IsObjectInBucket(GoogleCloudBucketName, objectName))
{
gb.UploadFile(GoogleCloudBucketName, audiofilePath, objectName, "audio /x-flac");
}
}
TranscribeResponse transcript = TranscribeInCloud(objectName, language);
return(transcript);
}
// Transcribe a local audio file. We can only use this with audios up to 1 minute long.
public TranscribeResponse TranscribeFile(string fileName, string language)
{
var speech = SpeechClient.Create();
RecognitionAudio recogAudio = RecognitionAudio.FromFile(fileName);
var response = speech.Recognize(new RecognitionConfig()
{
Encoding = RecognitionConfig.Types.AudioEncoding.Flac,
SampleRateHertz = 48000,
EnableWordTimeOffsets = true,
LanguageCode = language,
}, recogAudio);
// Transform the Google response into a more usable object.
TranscribeResponse transcript = GetShortTranscribeResponse(response);
return(transcript);
}
