On Saturday 28 March 2009 16:39, Ken Restivo wrote: > When a LADSPA plugin is being sent zeroes-- i.e. when the volume of the > input data is down to nothing-- is it still sucking up CPU cycles? > > I understand from the JACK API that anytime a client gets a callback with > data, it has to drop down and deal with the data and then return, even if > the data is zero. But that could be lightweight, if the data are zero, or > is that very compute-intensive for the plugin? > > I'm trying to build an outboard effects chain in various LADSPA hosts (JACK > Rack, ecasound, AMS, others... haven't settled on one yet), and when I've > got that plugin's volume MIDI'ed down to zero, I'd like it to not be > dominating CPU cycles at that time. > > -ken Hi Ken. Your not experiencing a denormals problem perhaps with the plugins? Googling denormals bring up some interesting hits on the first page. May be worth a look if that is the problem. Nigel. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
