Okay, except it seems to be pretty hard to get equal to work: This one comes more or less straight from the alsaequal site: ctl.equal { type equal; library "/usr/lib/ladspa/amp.so"; module "amp_stereo"; } pcm.plugequal { type equal; slave.pcm "plughw:0,0"; library "/usr/lib/ladspa/amp.so"; module "amp_stereo"; } pcm.equal { type plug; slave.pcm plugequal; } Alsamixer shows the (single) parameter of the the amp plugin fine, but: pi@raspberrypi ~ $ aplay -Dequal piano2.wav Playing WAVE 'piano2.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo Segmentation fault pi@raspberrypi ~ $ Is there something specific I could be doing wrong? I did get the amp-plugin working as a regular ladspa type, but I need to be able change the paramrters in real time... cheers and thanks for the help! - bram On Fri, Jun 14, 2013 at 12:31 PM, Clemens Ladisch <cladisch@xxxxxxxxxxxxxx> wrote: > Bram de Jong wrote: >> I know I can change the values using alsamixer, but I need command >> line instead... > > man amixer > > > Regards, > Clemens -- http://www.samplesumo.com http://www.freesound.org http://www.smartelectronix.com http://www.musicdsp.org office: +32 (0) 9 335 59 25 mobile: +32 (0) 484 154 730 ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user