On 22 Jan 2008 at 15:38, Tommi Sakari Uimonen murmured decisively: > two harddisks that both spin at 7200rpm. If I shut one of them down with > hdparm, the noise goes away. It's the resonance. mount one further away mount both on rubber absorbant mountings. send me one and replace it with a 10000rpm one (-: -- David http://iwr.ru.ac.za/~iwdf/ If you receive email saying "Send this to everyone you know", PLEASE pretend you don't know me. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user