private async void SpeechRecogntionFromStream()
{
string key = string.Empty;
string region = string.Empty;
string deployID = string.Empty;
string language = string.Empty;
bool isStandard = true;
if (this.localSetting.SpeechServerType.Equals("Standard Speech Server"))
{
key = this.localSetting.StandardSubscriptionKey;
region = this.localSetting.StandardRegion;
language = this.localSetting.StandardRecognitionLanguage;
}
else if (this.localSetting.SpeechServerType.Equals("Custom Speech Server"))
{
isStandard = false;
key = this.localSetting.CustomSubscriptionKey;
region = this.localSetting.CustomRegion;
language = this.localSetting.CustomRecognitionLanguage;
deployID = this.localSetting.CustomDeploymentID;
}
if (String.IsNullOrEmpty(key) || String.IsNullOrEmpty(region))
{
NotifyUser("Subscription key or region is missing!", NotifyType.ErrorMessage);
return;
}
else if (string.IsNullOrEmpty(deployID) && isStandard == false)
{
NotifyUser("Deploym ID is missing!", NotifyType.ErrorMessage);
return;
}
else if (string.IsNullOrEmpty(this.localSetting.TranslateSubscriptionKey))
{
NotifyUser("Translator key is missing!", NotifyType.ErrorMessage);
return;
}
else
{
NotifyUser(string.Empty, NotifyType.StatusMessage);
ShowResult(TBSRResult, string.Empty);
ShowResult(TBTranslation, string.Empty);
}
stopRecognitionTaskCompletionSource = new TaskCompletionSource <int>();
AudioInputStream audioStream = null;
BinaryReader reader = null;
Stream stream = null;
var picker = new Windows.Storage.Pickers.FileOpenPicker();
picker.FileTypeFilter.Add(".wav");
StorageFile file = await picker.PickSingleFileAsync();
if (file == null)
{
string s = string.Format("Can't open it!");
NotifyUser(s, NotifyType.ErrorMessage);
return;
}
try
{
stream = (await file.OpenReadAsync()).AsStreamForRead();
reader = new BinaryReader(stream);
// Create an audio stream from a wav file.
audioStream = Helper.OpenWaveFile(reader);
// Creates an instance of a speech factory with specified and service region (e.g., "westus").
var factory = SpeechFactory.FromSubscription(key, region);
// Creates a speech recognizer using file as audio input. The default language is "en-us".
using (var recognizer = factory.CreateSpeechRecognizerWithStream(audioStream, language))
{
// Replace with the CRIS deployment id of your customized model.
recognizer.DeploymentId = deployID;
// Subscribes to events.
recognizer.IntermediateResultReceived += (s, ee) =>
{
NotifyUser(ee.Result.Text, NotifyType.StatusMessage);
};
recognizer.FinalResultReceived += (s, ee) =>
{
string str;
if (ee.Result.RecognitionStatus == RecognitionStatus.Recognized)
{
str = ee.Result.Text;
ShowResult(TBSRResult, str);
TranslateAsync(str);
}
else
{
str = $"Final result: Status: {ee.Result.RecognitionStatus.ToString()}, FailureReason: {ee.Result.RecognitionFailureReason}.";
NotifyUser(str, NotifyType.StatusMessage);
}
};
recognizer.RecognitionErrorRaised += (s, ee) =>
{
NotifyUser($"An error occurred. Status: {ee.Status.ToString()}, FailureReason: {ee.FailureReason}", NotifyType.StatusMessage);
};
recognizer.OnSessionEvent += (s, ee) =>
{
NotifyUser($"Session event. Event: {ee.EventType.ToString()}.", NotifyType.StatusMessage);
// Stops translation when session stop is detected.
if (ee.EventType == SessionEventType.SessionStoppedEvent)
{
NotifyUser($"Stop recognition.", NotifyType.StatusMessage);
stopRecognitionTaskCompletionSource.TrySetResult(0);
}
};
// Starts continuous recognition. Uses StopContinuousRecognitionAsync() to stop recognition.
await recognizer.StartContinuousRecognitionAsync().ConfigureAwait(false);
// Waits for completion.
await stopRecognitionTaskCompletionSource.Task.ConfigureAwait(false);
// Stops recognition.
await recognizer.StopContinuousRecognitionAsync().ConfigureAwait(false);
}
}
catch (System.FormatException ex)
{
NotifyUser(ex.ToString(), NotifyType.ErrorMessage);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
if (audioStream != null)
{
audioStream.Dispose();
}
if (stream != null)
{
stream.Dispose();
}
}
}
private async void SpeechRecogntionFromStream_ButtonClicked(object sender, RoutedEventArgs e)
{
stopRecognitionTaskCompletionSource = new TaskCompletionSource <int>();
AudioInputStream audioStream = null;
BinaryReader reader = null;
Stream stream = null;
if (!AreKeysValid())
{
NotifyUser("Subscription Key is missing!", NotifyType.ErrorMessage);
return;
}
else
{
NotifyUser(" ", NotifyType.StatusMessage);
}
var picker = new Windows.Storage.Pickers.FileOpenPicker();
picker.FileTypeFilter.Add(".wav");
StorageFile file = await picker.PickSingleFileAsync();
if (file == null)
{
string s = string.Format("Can't open {0} !", file.Path);
NotifyUser(s, NotifyType.ErrorMessage);
return;
}
try
{
stream = (await file.OpenReadAsync()).AsStreamForRead();
reader = new BinaryReader(stream);
// Create an audio stream from a wav file.
audioStream = MicrosoftSpeechSDKSamples.Helper.OpenWaveFile(reader);
// Creates an instance of a speech factory with specified and service region (e.g., "westus").
var factory = SpeechFactory.FromSubscription(this.SubscriptionKey, this.Region);
// Creates a speech recognizer using file as audio input. The default language is "en-us".
using (var recognizer = factory.CreateSpeechRecognizerWithStream(audioStream, this.RecognitionLanguage))
{
// Subscribes to events.
recognizer.IntermediateResultReceived += (s, ee) =>
{
NotifyUser(ee.Result.Text, NotifyType.StatusMessage);
};
recognizer.FinalResultReceived += (s, ee) =>
{
string str;
if (ee.Result.RecognitionStatus == RecognitionStatus.Recognized)
{
str = $"Final result: Status: {ee.Result.RecognitionStatus.ToString()}, Text: {ee.Result.Text}.";
}
else
{
str = $"Final result: Status: {ee.Result.RecognitionStatus.ToString()}, FailureReason: {ee.Result.RecognitionFailureReason}.";
}
NotifyUser(str, NotifyType.StatusMessage);
};
recognizer.RecognitionErrorRaised += (s, ee) =>
{
NotifyUser($"An error occurred. Status: {ee.Status.ToString()}, FailureReason: {ee.FailureReason}", NotifyType.StatusMessage);
};
recognizer.OnSessionEvent += (s, ee) =>
{
NotifyUser($"Session event. Event: {ee.EventType.ToString()}.", NotifyType.StatusMessage);
// Stops translation when session stop is detected.
if (ee.EventType == SessionEventType.SessionStoppedEvent)
{
NotifyUser($"Stop recognition.", NotifyType.StatusMessage);
stopRecognitionTaskCompletionSource.TrySetResult(0);
}
};
// Starts continuous recognition. Uses StopContinuousRecognitionAsync() to stop recognition.
await recognizer.StartContinuousRecognitionAsync().ConfigureAwait(false);
// Waits for completion.
await stopRecognitionTaskCompletionSource.Task.ConfigureAwait(false);
// Stops recognition.
await recognizer.StopContinuousRecognitionAsync().ConfigureAwait(false);
}
}
catch (System.FormatException ex)
{
NotifyUser(ex.ToString(), NotifyType.ErrorMessage);
}
finally
{
if (reader != null)
{
reader.Dispose();
}
if (audioStream != null)
{
audioStream.Dispose();
}
if (stream != null)
{
stream.Dispose();
}
}
}