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rncbc / qsynth

Qsynth - A fluidsynth Qt GUI Interface
https://qsynth.sourceforge.io
GNU General Public License v2.0
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Unable to play any video while Qsynth is active #49

Open RayBoucherit opened 3 years ago

RayBoucherit commented 3 years ago

Hi, I'm using Qsynth in addition with QJackCtl to play with my MIDI keyboard. But when QSynth is active any video or music that comes from another source (Firefox, VLC) is either muted or slowed down.

rncbc commented 3 years ago

don't blame qsynth :)

it's JACK that takes hold of the main sound device: this is fundamental and actually expected.

maybe what you need is pulseaudio-jack-module: install it and then...

retry and setup a proper jackd2 (+jackdbus) system, if you didn't already and Enable JACK D-BUS interface (cf. QjackCtl > Setup > Misc)

or... wait for the pipewire bliss, coming soon... :)

pedrolcl commented 2 years ago

It is even easier: qsynth/fluidsynth may use pulseaudio instead of jack. Connect your MIDI keyboard first, and then...

Screenshot_20220105_184938

With a buffer size of 1323 the latency is about 30 milliseconds. Feel free to experiment with other values. The other important setting is "Auto Connect MIDI Inputs" in the MIDI tab:

Screenshot_20220105_184954

With the last setting, you don't need to use qjackctl to connect your MIDI controller to qsynth.