Delayed beat detection about projectm HOT 3 CLOSED

Hi,

projectM itself has no large buffer that would explain a 5-second delay (the internal buffer can hold at most ~50ms of audio data).

The screenshots show the Qt app, which has a really old and probably wrong PulseAudio implementation.

Could you try this development build of the SDL2 frontend here? This should work better as it uses libSDL2 for audio capturing:
https://github.com/kblaschke/frontend-sdl2/releases/tag/2.0-linux-pre1

Drawback is that it currently has no playlist management or configuration UI, but we're working on that.

If SDL doesn't use Pipewire by default, try setting SDL_AUDIODRIVER=pipewire in the environment. Support depends on how libSDL2 was compiled though.

from projectm.

tested frontend-sdl2 and it worked fine, also experienced a delay like OP when using pipewire and its pulse backend. Fixed it by passing PULSE_LATENCY_MSEC=50.

from projectm.

Wow, I missed that comment :(

Yeah fronend-sdl2 works really great! Thank you so much!

from projectm.