[alsa-devel] [Alsa-user] Metallic recording in cs46xx on Thinkpad T22

[Gadi Oron]

Hopefully it is full now.

http://pastebin.ca/940929

On Thu, Mar 13, 2008 at 12:48 PM, Takashi Iwai <tiwai at suse.de> wrote:

> At Wed, 12 Mar 2008 18:17:43 +0100,
> Rene Herman wrote:
> >
> > On 12-03-08 17:59, Takashi Iwai wrote:
> >
> > > At Wed, 12 Mar 2008 17:39:48 +0100,
> > > Rene Herman wrote:
> > >> On 12-03-08 15:43, Takashi Iwai wrote:
> > >>
> > >>> At Tue, 11 Mar 2008 23:01:39 +0100,
> > >>> Rene Herman wrote:
> > >>>> On 11-03-08 08:24, Gadi Oron wrote:
> > >>>>
> > >>>>> I am trying to record sound on an old Thinkpad T22 that uses the
> cs46xx
> > >>>>> sound driver.
> > >>>>>
> > >>>>> Each time you start to record you have a 10% chance of having the
> > >>>>> recording completely distorted and having a metallic sound. When
> you
> > >>>>> look at the waveform it looks as though there are small segments
> with
> > >>>>> sharp transitions between them, a little like if these segments
> were
> > >>>>> moved a little from their correct place.
> > >>>> No insights, but I confirm the bug with a TerraTec DMX XFire 1024
> (CS4624).
> > >>> Hm, cs46xx driver hasn't been much changes since long time ago
> (around
> > >>> year 2005).  The only big change was about some PM fixes, and I
> don't
> > >>> think it's relevant...  Could you run als-info.sh to get the status?
> > >> At:
> > >>
> > >> http://pastebin.ca/939784
> > >
> > > The output seems truncated.  Could you give the generated file via
> > > "alsactl -f somefile store", just to be sure ?
> >
> > Hmm, alsa-info.sh freshly downloaded from current hg.
>
> Is the original data also truncated at the middle or is it a paste.bin
> problem?
>
> >       control.26 {
> >               comment.access 'read write'
> >               comment.type INTEGER
> >               comment.count 2
> >               comment.range '0 - 32767'
> >               iface MIXER
> >               name 'ADC Volume'
> >               value.0 29492
> >               value.1 29492
> >       }
>
> Try to put this to full once.
>
>
> Takashi
>