Hi! Ecasound's pitch-shift can work in realtime. Only you'd need a file as input, not a device. You could even do some modulation on shift-% via the -k-something options. thanks for the idea anyway! If you'd like to try feel free to, it's working fine! Kindest regards Julien Julien Patrick Claassen jclaassen@xxxxxx julien@xxxxxxxx http://www.geocities.com/jjs_home SBS C-LAB Fuerstenallee 11 33102 Paderborn Phone: (+49) 5251 60 6060 Fax: (+49) 5251 60 6065 www.c-lab.de