Has anyone tried Qt Speech?

JoeCFD · 7 Apr 2025, 17:44

I tried this module of 6.9 on Ubuntu 22.04. The sound is not great.

JonB · 4 Jul 2025, 17:44

@JoeCFD
I tried it under Ubuntu 22.04 (or might have been 20.04) Qt 5.15 for fun, and it was not great either :)

SGaist · 7 Apr 2025, 18:15

Hi,

On macOS it's pretty decent.

JoeCFD · S SGaist 7 Apr 2025, 17:54

@SGaist I tried different English selections, German and French. None of them is great. Will try it on Windows.

SGaist · 7 Apr 2025, 20:32

Which backend are you using ?

JoeCFD · 4 Jul 2025, 20:33

@SGaist I did not select any specifically and the default was applied. Did you select one?

SGaist · 8 Apr 2025, 11:35

On macOS it's using the system's speech system. AFAIR, Linux has multiple software that provides that service hence my question.

JoeCFD · S SGaist 8 Apr 2025, 06:47

@SGaist Tried another one: festival, Still very robotic and unnatural. Will try more.

SGaist

Note that this is outside of Qt's control. The quality of the voice highly depends on what the backend offers.

CPPUIX · 4 Sept 2025, 08:18

I tried it a while ago, when I was first starting with Qt...and yeah, doesn't sound so great. The reason why is already explained by SGaist.

I tried a lot of options on Linux (KDE Neon, Fedora), and RHVoice seemed to sound best, but still not quite there, and I'm not sure how are things now, but, if it helps:

https://stackoverflow.com/questions/76094006/how-to-use-rhvoice-via-speech-dispatcher-in-qt

Try different voices and voice settings, or look for other options, perhaps new ones exist now.

I'm also interested to see if anyone has suggestions.