private static Tuple <int, string> ConvertFileToFlac(AudioBinary audioBinary)
{
if (audioBinary.AudioType != AudioType.Wav)
{
throw new InvalidOperationException("Target file must be wav in order to convert to flac.");
}
string flacSavePath = AppDomain.CurrentDomain.BaseDirectory + "uploads/" + "meeting.flac";
Tuple <int, string> sampleRateAndTargetFlac = CUEToolsConverter.WavToFlac(audioBinary.AudioBytes, flacSavePath);
return(sampleRateAndTargetFlac);
}
public static RecordingText TranslateSpeechToText(AudioBinary audioBinary, SpeechToTextGoogleAPI interpreter)
{
if (audioBinary == null || interpreter == null)
{
throw new InvalidOperationException("AudioBinary and Interpreter cannot be null.");
}
InterpretationResult result = null;
switch (interpreter.AudioRequirement)
{
case AudioType.Flac:
Tuple <int, string> sampleRateAndTargetFlac = ConvertFileToFlac(audioBinary);
interpreter.SpeechRequest(sampleRateAndTargetFlac.Item1, sampleRateAndTargetFlac.Item2);
result = new InterpretationResult(interpreter);
File.Delete(sampleRateAndTargetFlac.Item2);
break;
default:
throw new NotImplementedException("This audio type is not yet implemented");
}
return(new RecordingText(result, audioBinary));
}
public async Task <ActionResult> Recorded()
{
byte[] audioBytes = null;
HttpPostedFileBase file = null;
SalesforceUser user = Session[helper.UserKey] as SalesforceUser;
DateTimeOffset recordingTime = DateTime.Now;
SpeechToTextGoogleAPI googleInterpreter = new SpeechToTextGoogleAPI();
if (Request.Files.Count < 1)
{
return(RedirectToAction("Record", new { id = helper.RecordFailureRouteValue }));
}
foreach (string upload in Request.Files)
{
file = Request.Files[upload];
if (file == null)
{
continue;
}
audioBytes = new byte[file.ContentLength];
}
//Only want the one file, will default to last file iterated and write to the audioBytes
file.InputStream.Read(audioBytes, 0, file.ContentLength);
AudioBinary audioBinary = new AudioBinary(audioBytes, AudioType.Wav);
RecordingText googleText = InterpreterDirector.TranslateSpeechToText(audioBinary, googleInterpreter);
Recording newRecording = new Recording(user, recordingTime, audioBinary);
recordingsDb.Recordings.Add(newRecording);
await recordingsDb.SaveChangesAsync();
recordingsDb.AudioBinarys.Add(audioBinary);
await recordingsDb.SaveChangesAsync();
recordingsDb.RecordingTexts.Add(googleText);
await recordingsDb.SaveChangesAsync();
return(RedirectToAction("index", new { id = newRecording.ID }));
}
