SpeechSynthesizer pitch does not affect the speech

[mattleibow]

Describe the bug

I am using the speech synth to speak this xml:

<speak version='1.0' xmlns='http://www.w3.org/2001/10/synthesis' xml:lang='en-US'>
   <prosody pitch='x-high' rate='default' volume='100'>Xamarin Essentials makes text to speech easy!</prosody> 
</speak>

Even though I have the pitch set to x-high, the pitch actually remains the same as default. Same with x-low.

Steps to reproduce the bug

var ssml = @"<speak version='1.0' xmlns='http://www.w3.org/2001/10/synthesis' xml:lang='en-US'>
   <prosody pitch='x-high' rate='default' volume='100'>Xamarin Essentials makes text to speech easy!</prosody> 
</speak>";

var player = new MediaPlayer();
var speechSynthesizer = new SpeechSynthesizer();
var stream = await speechSynthesizer.SynthesizeSsmlToStreamAsync(ssml);
player.Source = MediaSource.CreateFromStream(stream, stream.ContentType);
player.Play();

Expected behavior

Pitch changes

Screenshots

No response

NuGet package version

1.1.4

Packaging type

Packaged (MSIX)

Windows version

Windows 11 version 21H2 (22000)

IDE

Visual Studio 2022

Additional context

No response

[ssparach]

/external

[microsoft-github-policy-service]

Hi @@mattleibow, thank you for your contribution! This issue appears to be external to the WindowsAppSDK. To help route it appropriately, please submit your feedback via the Feedback Hub by pressing [Windows] + [F], and include detailed information and diagnostics. We appreciate your help in improving the platform!