There has been a technical decision made to remove various Windows modules from calibre's code base from v5.4 onwards. This has necessitated changes to this plugin to keep it running.
Users of
calibre v5.4 (or higher) must also upgrade to
TTS to MP3 v0.5.4
Users of
calibre v3.41-v5.3 (inclusive) must keep
TTS to MP3 v0.4.x
N.B: Calibre's automated plugin update system will not offer this plugin upgrade to existing users until they have already upgraded their calibre version to v5.4, which I believe is planned for October 30th, 2020.
- Maintenance update for compatibility with calibre v5.4 and above.
- Calibre 64-bit users: No change to functionality.
- Calibre 32-bit users, including Calibre Portable:
You should see an added benefit. You will now have access to all Voices installed in the 32-bit section of your Windows registry rather than just a single default Voice.
After updating the plugin you do not need to do anything special. All available Voices should automatically appear in the relevant drop-down menus. See post #2 of this thread for more technical detail.
This update has involved quite a lot of changes (
even if it doesn't look like it 
) so, if you have any problems, please report them here.