Re: [Alsa-user] strange noise with dmix

[Silver S. <sil...@gm...>]

On Sunday 14 December 2008 14:49:00 Silver Salonen wrote:
> On Saturday 13 December 2008 20:44:10 Silver Salonen wrote:
> > Hello.
> > 
> > I just got a new PC and installed OpenSuse 11.1 (having ALSA 1.0.18) 
there. 
> > The old computer had OpenSuse 11.0 with ALSA 1.0.17.
> > 
> > I have E-MU 0404 USB soundcard and I have such .asoundrc to use it:
> > =====
> > pcm.!default {
> >   type plug
> >   slave.pcm "asymUsb"
> > }
> > pcm.asymUsb {
> >   type asym 
> >   playback.pcm "dmixUsb" 
> >   capture.pcm "dsnoop"
> > }
> > pcm.dmixUsb {
> >   type dmix 
> >   ipc_key 1024  default 0600)
> >   slave {
> >     pcm "pcmUsb" 
> >     period_size 1024
> >   }
> > }
> > pcm.pcmUsb {
> >   type hw
> >   card USB
> > }
> > =====
> > 
> > After the switch (from ALSA 1.0.18 to 1.0.17 is the one that counts, I 
> guess) 
> > there's a strong noise (high-pitch, sounds a bit like there was an over-
> > amplification or smth) while playing sounds. If I use slave.pcm "pcmUsb" 
> > instead of "asymUsb" the noise is gone and everything is fine (besides the 
> > incapability of simultaneous sounds), so I guess it's dmix's fault.
> > 
> > Any clue why?
> > 
> > -- 
> > Silver
> 
> Sorry, .asoundrc got a bit messed up (my messy fingers while deleting 
> unnecessary comments etc) - pcm.dmixUsb part looks like this instead:
> 
> pcm.dmixUsb {
>   type dmix
>   ipc_key 1024
>   slave {
>     pcm "pcmUsb"
>     rate 48000
>     period_size 1024
>   }
> }

Anyone? Any suggestions what to check/try?

-- 
Silver