CODEWITHSUNDEEP
c#linqtext-to-speech
ktos1234
ktos1234

Reputation: 207

How to change synthesized speech voice language UWP?

I would like to change text to speech voice langauge. This is my code:

private async void readText(string text)
{
    var voices = SpeechSynthesizer.AllVoices;
    SpeechSynthesizer speech = new SpeechSynthesizer();
    speech.Voice = voices.First(x => x.Gender == VoiceGender.Female && x.Language.Contains("fr-FR"));
    SpeechSynthesisStream stream = await speech.SynthesizeTextToStreamAsync(text);
    mediaElement.SetSource(stream, stream.ContentType);
}

private void btnSay_Click(object sender, RoutedEventArgs e)
{
    readText(txtWhat.Text);
}

But when I try to run this code, there is exception thrown in line:

speech.Voice = voices.First(x => x.Gender == VoiceGender.Female && x.Language.Contains("fr-FR"));

An exception of type 'System.InvalidOperationException' occurred in System.Linq.dll but was not handled in user code.

What do I do wrong?

Upvotes: 2

Views: 2477

Answers (1)

Alexej Sommer
Alexej Sommer

Reputation: 2679

Please check is your application has microphone access grants (in manifest)

<Capabilities> 
<DeviceCapability Name="microphone" /> 
</Capabilities>

Frome code you can check it with:

bool permissionGained = await AudioCapturePermissions.RequestMicrophonePermission();
if (!permissionGained)
{
//ask user to modify settings
}

And better check first is language installed in system:

var list = from a in SpeechSynthesizer.AllVoices
       where a.Language.Contains("en")
       select a;

if (list.Count() > 0)
{
synthesizer.Voice = list.Last();
}

Upvotes: 4

Related Questions