[linux-audio-user] Horrible buzzing sound from speakers when PC switched off

I have just put back my Audiophile 2496 SC into my DAW and when I shut down the system I get a terrible bizzing sound comng from the speakers. The AP2496 is connected to an A&H analogue mixing desk and the speakers are Mackie 824s. I am running various distros and it happend on all them. The buzzing goes when I switch the pc on. If I boot up into windows I get a sharp hissing sound which I sort out by not picking the SPDIF I/O. What is going on here??? I have checked in alsamixer and there is nothing there that would indicate why I get this sound which only occurs when the machine is switched off. -- View this message in context: http://www.nabble.com/Horrible-buzzing-sound-from-speakers-when-PC-switched… Sent from the linux-audio-user forum at Nabble.com.