thanks for the test Wolfy; sorry 'bout your ears ! btw, i ididn't expect you to listen to the code just to analyze the recorded result ! i did mention the bit's and pieces on the bottom of the email though not very thorough. all interupts are the best they can be. i don't suspect HW; the fact that the wave flatlines is proof the card is recording "time". if it were interupts then you would lose time.it's the program material that's being interupted here.... though i do see "broken" waves very occasionally which is what you'd see with interupt trouble. it's more like a jack dropout to me but i can't see how they are happening. i wondered about qjackctl's patchbay's auto function.... i need to do more tests. best, g. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user