Hello, The shepard noise works well unless you have forgotten to "full" the soundin.6 that is on the f table 3 in the score. You have to create a sound file with a symmetric bell like enveloppe or something similar. You'll see that silence is gone anymore. That is something we tend to forget in electronic music composition: silence. BTW, you can hear you processing in real time without saving on a sound file by using the -o dac flags. Yours, Olivier Pasquet. -------------------- Olivier PASQUET -- APU -- Music Faculty OP101@mercury.anglia.ac.uk www.sinclair.anglia.ac.uk/~op101.student.cambridge.anglia --------------------