For real time audio effects I found creox (website) to be a stable solution. It consists of 5 different effects (Phaser, Flanger, Echo, Tremolo, Distortion) which can be dis- and enabled in different orders of connection. Presets can be saved, although not changed (as of version 0.2.2rc2). Instead one has to save a changed set under a new name. Unfortunately it doesn’t have MIDI control so one has to click or change focus – strike key, which is a bit awkward in live situations. But the presets window can be detached from the main window.
When creox is set into play mode (SPACE key) it opens up one stereo jack input and one output port. Via the jack control it can be connected to any other jack port.
Concerning stability: starting up is the critical phase to my experiences. After setting creox into play mode it sometimes dies. But if it survives, then it is usually stable. I tried jackrack (website) as well, which is a more professional effect station for LADSPA effects, but it seems to be less stable. Since jackrack includes MIDI control it should be worth fiddling around with it. Maybe compiling it on my system helps or my hardware (about) is just to weak…??? Any comments/experiences appreciated.
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