For theremin sensors have a look at: http://asmir.theremin.ru/ The sensors Andrey Smirnov uses in his workshops can either be connected via a microcontroller like Arduino, or their analog frequency output can be fed into a soundcard and converted to control data by pd. have fun, d _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user