Date: Sun, 25 Sep 2005 17:07:00 -0700 From: Sandy Rutherford <sandy@krvarr.bc.ca> To: freebsd-questions@freebsd.org Cc: hartzell@alerce.com Subject: Re: hints for troubleshooting poor sound quality. Message-ID: <17207.15268.579981.565564@szamoca.krvarr.bc.ca> In-Reply-To: <44zmq9i1bo.fsf@be-well.ilk.org> References: <17196.47787.731732.312437@satchel.alerce.com> <44zmq9i1bo.fsf@be-well.ilk.org>
next in thread | previous in thread | raw e-mail | index | archive | help
>>>>> On 19 Sep 2005 10:23:07 -0400, >>>>> Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> said: > George Hartzell <hartzell@kestrel.alerce.com> writes: >> I've set up an ASUS small form factor machine based around an P4S8L >> ... >> >> The machine has two mini-jacks, one in the front and one in the >> back. If I plug a set of headphones into the front jack I hear all >> kinds of clicks and whirs and buzzing. They seem to correlate with >> drive activity, cd activity, and maybe even the cpu fan. The >> connector on the back seems quieter, but I still hear a bit of >> noise. >> >> I hear less noise on a set of sony powerer-subwoofer-and-tweeter >> speakers, but it's still noticable. >> >> ... > Well, yes, it *is* electrical interference on the motherboard. You > may be able to reduce its impact, though. Reducing the amplifier gain > (ogain in the mixer(8) output) may help, for example. Also, does > playing digital audio see this effect, or only playing CDs? If the > latter, you can switch to digital extraction for playing CDs (most > software doesn't support it, but some does) and avoid the > interference. Would using an external USB audio device be another option? Last time that I checked, FreeBSD support for USB sound was not ready for prime time. However, I don't know what the lastest state of affairs is. Sandy
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?17207.15268.579981.565564>