anikevicius at gmail
May 15, 2012, 9:28 AM
Advice Needed: Conexant HD-Audio noisy audio
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
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
* Master ~50
* PCM 100
* Headphone 100
Does anybody has any thoughts on why am I experiencing this?
Thanks a lot,