Godot UI freezes while generating speech

nightblade9 commented 1 year ago

Godot version

4.0.0 official binaries, .NET flavour.

System information

Manjaro (Arch) with KDE Plasma; GPU = NVIDIA Corporation TU117M [GeForce GTX 1650 Ti Mobile] (rev a1)

Issue description

When generating speech via DisplayServer.tts_speak, on my Linux box, there's roughly a two-second pause (irrespective of audio length) while the system libraries do their thing. During this time, the Godot UI is completely frozen.

As I would like to allow users to rapidly move from, say, menu button to menu button, I really need:

The TTS not to freeze the Godot UI
.stop() immediately stopping, even if it's during this two-second period.

I tried work-around (e.g. running this in a Thread.new()) but it seems to have no effect.

Steps to reproduce

Create a button that calls DisplayServer.tts_speak with a message (maybe longer is better for testing) on press
Update things in _process like a label with the current time
Add extra controls you can click on
Click the button and try to do anything. You can't.

Minimal reproduction project

Not necessary, as this is trivially reproducible.

btzr-io commented 1 year ago

I can confirm this issue also exists on windows 10 ( Godot v4.0.1 )

novalis commented 1 year ago

Could this be #77754? (I know it's probably not that for Windows, but for Linux). time spd-say -L > /dev/null will give you a hint: if it takes about 2 seconds, that's your bug. If not, then it's something else.

nightblade9 commented 1 year ago

time reports 0.016s total, so I guess it's not the same issue. Thanks for providing clear instructions on how to verify it.

godotengine / godot