On Wednesday 02 February 2005 20:27, Bruce Marshall wrote:
I haven't been following this but at one time (with an older SB live card) there was quite a sound coming from the speakers. I dug down in some of the advanced settings and found something like 'ic928' or a similar weird name.
IEC958 on my machine. It's the digital (SP/DIF) output, which with my card shared the headphone output! So yes, switching it off (or muting it, in alsamixer parlance) should remove the horrible hissing noise.
Turning that setting off squelched the noise with no ill effects.
Unless you plugged a digital interconnect in to the socket, and wanted e.g. your cinema amp to be able to decode digital audio streams for you! ;) I hadn't been following the thread either, but I suspect that this was the cause - so, to the OP, if you haven't already tried, then mute everything in alsamixer, then unmute the things you actually use! -- Bill