Ralf Mardorf wrote: >Saw + pincers = ferrite core removed = no xruns anymore Thank you for doing the experiment. >>2) Unfortunately, USB is inherently noisy. Using a ferrite to reduce >>common-mode currents in the cable is, in principle, a good idea. Using a common-mode choke works only for differential signals. But USB also uses common-mode signalling for certain states. Ferrites on a USB cable should be one per data line, and sized so that only frequencies higher than the USB signalling rate are filtered out. I would guess that that cable was (originally) intended for low speed only. Regards, Clemens _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
