private void SendWavAudio(string wavFileName, DictationType dictationType)
{
Result = new List <RecognitionResult>();
var speechClient = CreateSpeechClient(dictationType);
using (FileStream fileStream = new FileStream(wavFileName, FileMode.Open, FileAccess.Read))
{
// Note for wave files, we can just send data from the file right to the server.
// In the case you are not an audio file in wave format, and instead you have just
// raw data (for example audio coming over bluetooth), then before sending up any
// audio data, you must first send up an SpeechAudioFormat descriptor to describe
// the layout and format of your raw audio data via DataRecognitionClient's sendAudioFormat() method.
int bytesRead = 0;
byte[] buffer = new byte[1024];
try
{
do
{
// Get more Audio data to send into byte buffer.
bytesRead = fileStream.Read(buffer, 0, buffer.Length);
// Send of audio data to service.
speechClient.SendAudio(buffer, bytesRead);
}while (bytesRead > 0);
}
finally
{
// We are done sending audio. Final recognition results will arrive in OnResponseReceived event call.
speechClient.EndAudio();
}
}
}
private DataRecognitionClient CreateSpeechClient(DictationType dictationType)
{
var key = ConfigurationManager.AppSettings["MicrosoftSpeechApiKey"];
var speechClient = SpeechRecognitionServiceFactory.CreateDataClient(
//SpeechRecognitionMode.ShortPhrase,
SpeechRecognitionMode.LongDictation,
"pt-BR",
key
);
speechClient.AuthenticationUri = "";
if (dictationType == DictationType.Short)
{
speechClient.OnResponseReceived += this.OnShortResponseReceived;
}
else
{
speechClient.OnResponseReceived += this.OnLongResponseReceived;
}
speechClient.OnConversationError += this.OnConversationError;
speechClient.OnPartialResponseReceived += SpeechClient_OnPartialResponseReceived;
return(speechClient);
}
public void ConvertSpeechToText(string fileNameAndPath, DictationType dictationType)
{
waitHandle = new AutoResetEvent(false);
SendWavAudio(fileNameAndPath, dictationType);
waitHandle.WaitOne();
}
