Training for Windows.media.speechrecognition engine

Question

Hello:

First off, not sure if this is the right location for Windows.media.speechrecognition related questions. If not, can someone please direct me to the right location. Greatly appreciated.

Note: I am not referring to the System.Speech.Recognition namespace nor the Microsoft.CognitiveServices.Speech

I am adding speech recognition functionality to the C# WPF desktop application. Things work ok so far, however, I do not see anything under the documentation that discussing about "voice training" for different voice accents. Here are my questions:

1/ Is there "voice training" capability under Windows.media.speechrecognition? Below is the link to the online doc:
https://learn.microsoft.com/en-us/uwp/api/windows.media.speechrecognition?view=winrt-20348

2/ If the answer for 1/ is yes. Which API/properties under the Windows.media.speechrecognition namespace for this?
If the answer is no, what are the alternatives?

Note: I add the "azure-speech" tag even I am not using the Microsoft.CognitiveServices.Speech. I use this tag since that is the only
tag available that is speech related

Thanks