On Tue, May 15, 2012 at 11:28 AM, Ignas Anikevicius <anikevic...@gmail.com> wrote: > Dear all, > > It's been quite a while since I noticed this annoying behaviour, but I > could not find any information what might cause this. So the problem is > that at lower volumes my HD-Audio with Conexant becomes very noisy and > this is regardless of the sound system or speakers/headphones I use. > > The noise can be described, as high pitched, sandy texture noise > heard during more expressive parts of the music or speech. > > I experience this on two Thinkpads (x200s and x200) and it very evident > when I connected external speakers, they produced a lot of this noise, > or maybe I just could hear it better, because of the frequency response > of the speakers. > > Does anybody have some similar issues? > > My current audio setup: > > * PulseAudio (but the problem is experienced with ALSA as well) > * MPD for music playing > * Conexant and other related modules compiled in, power-saving > features enabled. > > What I have tried to eliminate the noise: > > * Various levels of Master,PCM,Headphone channels via Alsamixer > * Increase the sample rate in MPD settings. > > The noise can be clearly head when I Have the following setting on my > Alsamixer: > > * Master ~50 > * PCM 100 > * Headphone 100 > > Does anybody has any thoughts on why am I experiencing this? > > Thanks a lot, > Ignas A. >
I would check the inputs in alsamixer and play around with them. I had a problem similar to this for many months and it was due to some funny input volume I didn't need, so I muted it.
