private void sendSpeakRequest()
{
string accessToken;
// Note: The way to get api key:
// Free: https://www.microsoft.com/cognitive-services/en-us/subscriptions?productId=/products/Bing.Speech.Preview
// Paid: https://portal.azure.com/#create/Microsoft.CognitiveServices/apitype/Bing.Speech/pricingtier/S0
Authentication auth = new Authentication(apiKey);
try
{
accessToken = auth.GetAccessToken();
//EZBManager.Log("Token: {0}\n", accessToken);
}
catch (Exception ex)
{
EZBManager.Log("Failed authentication.");
EZBManager.Log(ex.ToString());
EZBManager.Log(ex.Message);
return;
}
string requestUri = "https://speech.platform.bing.com/synthesize";
var speaker = new Synthesize();
speaker.OnAudioAvailable += PlayAudio;
speaker.OnError += ErrorHandler;
Task task = speaker.Speak(CancellationToken.None, new Synthesize.InputOptions()
{
RequestUri = new Uri(requestUri),
Text = EZ_Builder.Scripting.VariableManager.GetVariable("$textToSpeak"),
VoiceName = Convert.ToString(_cf.STORAGE[ConfigurationDictionary.VOICE]),
OutputFormat = AudioOutputFormat.Riff16Khz16BitMonoPcm,
AuthorizationToken = "Bearer " + accessToken,
});
task.Wait();
}
private void PlayAudio(object sender, GenericEventArgs <Stream> args)
{
if (Convert.ToBoolean(_cf.STORAGE[ConfigurationDictionary.PLAY_THROUGH_EZB]))
{
using (var memoryStream = new MemoryStream())
{
args.EventData.CopyTo(memoryStream);
memoryStream.Position = 0;
try
{
using (NAudio.Wave.WaveStream wav = new NAudio.Wave.WaveFileReader(memoryStream))
{
using (NAudio.Wave.WaveFormatConversionStream pcm = new NAudio.Wave.WaveFormatConversionStream(new NAudio.Wave.WaveFormat(EZ_B.EZBv4Sound.AUDIO_SAMPLE_BITRATE, 8, 1), wav))
{
if (EZBManager.EZBs[0].SoundV4.IsPlaying)
{
stopPlaying();
}
else
{
EZBManager.EZBs[0].SoundV4.PlayData(pcm);
}
}
}
}
catch (Exception ex)
{
EZBManager.Log("Error: " + ex.Message);
EZBManager.Log("StackTrace: " + ex.StackTrace);
}
}
}
else
{
SoundPlayer player = new SoundPlayer(args.EventData);
player.PlaySync();
}
args.EventData.Dispose();
}
private void OnTokenExpiredCallback(object stateInfo)
{
try
{
RenewAccessToken();
}
catch (Exception ex)
{
EZBManager.Log(string.Format("Failed renewing access token. Details: {0}", ex.Message));
}
finally
{
try
{
accessTokenRenewer.Change(TimeSpan.FromMinutes(RefreshTokenDuration), TimeSpan.FromMilliseconds(-1));
}
catch (Exception ex)
{
EZBManager.Log(string.Format("Failed to reschedule the timer to renew access token. Details: {0}", ex.Message));
}
}
}
private void ErrorHandler(object sender, GenericEventArgs <Exception> e)
{
EZBManager.Log("Unable to complete the TTS request: [{0}]", e.ToString());
}
/// <summary>
/// Sends the specified text to be spoken to the TTS service and saves the response audio to a file.
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A Task</returns>
public Task Speak(CancellationToken cancellationToken, InputOptions inputOptions)
{
client.DefaultRequestHeaders.Clear();
foreach (var header in inputOptions.Headers)
{
client.DefaultRequestHeaders.TryAddWithoutValidation(header.Key, header.Value);
}
var genderValue = "";
switch (inputOptions.VoiceType)
{
case Gender.Male:
genderValue = "Male";
break;
case Gender.Female:
default:
genderValue = "Female";
break;
}
var request = new HttpRequestMessage(HttpMethod.Post, inputOptions.RequestUri)
{
Content = new StringContent(GenerateSsml(inputOptions.Locale, genderValue, inputOptions.VoiceName, inputOptions.Text))
};
var httpTask = client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
//EZBManager.Log("Response status code: [{0}]", httpTask.Result.StatusCode);
var saveTask = httpTask.ContinueWith(
async(responseMessage, token) =>
{
try
{
if (responseMessage.IsCompleted && responseMessage.Result != null && responseMessage.Result.IsSuccessStatusCode)
{
var httpStream = await responseMessage.Result.Content.ReadAsStreamAsync().ConfigureAwait(false);
this.AudioAvailable(new GenericEventArgs <Stream>(httpStream));
}
else
{
this.Error(new GenericEventArgs <Exception>(new Exception(String.Format("Service returned {0}", responseMessage.Result.StatusCode))));
EZBManager.Log(String.Format("Service returned {0}", responseMessage.Result.StatusCode));
}
}
catch (Exception e)
{
this.Error(new GenericEventArgs <Exception>(e.GetBaseException()));
EZBManager.Log(String.Format("Service returned {0}", responseMessage.Result.StatusCode));
}
finally
{
responseMessage.Dispose();
request.Dispose();
}
},
TaskContinuationOptions.AttachedToParent,
cancellationToken);
return(saveTask);
}
