Unlock extra Text to Speech Voices via Registry

To unlock extra Text to Speech voices in Windows 10/11 via the registry, do the following: Since this is a registry operation, it is recommended that you back up the registry or create a system restore point as necessary precautionary measures. Once done, you can proceed as follows:

Press Windows key + R to invoke the Run dialog.In the Run dialog box, type regedit and hit Enter to open Registry Editor.Navigate or jump to the registry key path below:

At the location, on the left navigation pane, right-click on the voice you want to make available and select Export (to the desktop, preferably) from the context menu.Next, right-click the .reg file on your desktop and select Edit to open the reg file with Notepad.In the open Notepad, replace the portion below:

with this portion below:

For Windows 10/11 64-bit architecture, you may want to make the voice available to third-party 32-bit apps by copying everything below the Windows Registry Editor Version 5.00 line and paste to the end of the file.For the pasted lines, replace the registry path below:

with this path below:

Now, you can save your edited file as a new *.reg file.Finally, double-click the file to merge it to the registry.

Once done with the merge, you can access the voice from the Speech page in Settings app. That’s it! The table below (sourced from Microsoft) lists the Text-to-Speech languages and voices available in Windows. Hope you find this post on how to unlock extra Text to Speech Voices in Windows 11/10 helpful enough!