How to perform language installation via Windows PowerShell Command in Windows 10?

Question

I would install via command line a new language voice on Windows 10 Text To Speech.

Until now on the internet I've found only a manual way that user could perform: https://support.office.com/en-us/article/download-voices-for-immersive-reader-read-mode-and-read-aloud-4c83a8d8-7486-42f7-8e46-2b0fdf753130

But what about if I would automate this process by a Command Line onto Windows 10?

I read and I tried a manual procedure that explains that it's possible to run a couple of installers (Runtime and Package Language), but I think it's not valid for Windows 10.

Microsoft Speech Platform - Runtime Languages (Version 11) https://www.microsoft.com/en-us/download/details.aspx?id=27224

In details, I tried to install the Runtime and the French package MSSpeech_SR_fr-FR_TELE.msi and MSSpeech_TTS_fr-FR_Hortense.msi but it doesn't work.

I believe that those installers are not designed for Windows 10 because nothing will appear in Windows 10 Language Settings and onto the registry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Voices\Tokens HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\SPEECH\Voices\Tokens

Just to try, I've manually added Chinese and English language as additional languages (following the first link that I paste in this post) and that language will appear as I expected onto the Windows Registry Keys that I mentioned (and on the system).

Using the [Windows PowerShell] (see this link) and the following commands is possible to add a new language in the Windows 10:

PS C:\> $UserLanguageList = New-WinUserLanguageList -Language en-EN
PS C:\> $UserLanguageList[0].Handwriting = $True
PS C:\> Set-WinUserLanguageList -LanguageList $UserLanguageList

The result will be like this: Area-Language Windows Settings

But how can I run the Download and Installation of the TTS voice?

Thanks Cheers