At Fri, 5 Sep 2008 02:46:50 +1000, Travis Place wrote:
Hello everyone,
Im Travis (wishie) once of the many helpers who man the unofficial #alsa on freenode irc network.. I usually spend my time fixing other peoples sound issues, but now i have my own.
I have a HP DV2839TX laptop, and i get ALOT of static when recording via the inbuilt mic. Also, the mic controls are very strange.. I have (in the Capture section of alsamixer).. Digital, Docking Mic, External Mic, Internal Mic.. only the "Digital" control seems to effect my recording volume at all.
The "Digital Capture Volume" is alsa-lib softvol plugin element, and works globally. In the case of a digital mic (i.e. usually without a volume control), sometimes this is the only effective control.
Strangely, though, the '* Mic' controls in the PLAYBACK section of alsamixer do change the recording properties somewhat (volume being the main factor).
If you mean about "Mic Boost" or such, then it's a known (long-standing) bug in ALSA mixer interface. This appears twice, for playback and capture, but only the playback one works.
In any event, i get a rather large amount of static, no matter what mixer settings i try. This isnt a problem in the 'other' OS.
My alsa-info.sh output for alsa-driver 1.0.16 is at : http://www.alsa-project.org/db/?f=0d1df6446ff1c71ad305e7b7b367f0a6b22b80c8
My alsa-info.sh output for alsa-driver 1.0.18rc1 is at : http://www.alsa-project.org/db/?f=9e5cd99f4822e0d671866fa630698bd1b0cd954b
It did work on 1.0.16 or not?
Takashi