[alsa-devel] [PATCH 0/2] ASoC: TWL4030: DAPM restructuring and Headset pop-attenuation fix

Aggarwal, Anuj anuj.aggarwal at ti.com
Tue May 19 10:30:50 CEST 2009


> -----Original Message-----
> From: Peter Ujfalusi [mailto:peter.ujfalusi at nokia.com]
> Sent: Tuesday, May 19, 2009 1:30 PM
> To: Aggarwal, Anuj
> Cc: Mark Brown; sakoman at gmail.com; alsa-devel at alsa-project.org;
> getarunks at gmail.com; Lopez Cruz, Misael
> Subject: Re: [alsa-devel] [PATCH 0/2] ASoC: TWL4030: DAPM restructuring
> and Headset pop-attenuation fix
> 
> On Tuesday 19 May 2009 09:47:13 ext Aggarwal, Anuj wrote:
> > I am facing problems on the capture side now, I don't know whether
> someone
> > has tested it or not.
> >
> > By default, capture was not working. I have to enable Analog Left Capture
> > Route AUXL & Analog Right Capture Route AUXR to enable the capture
> > paths for OMAP3 EVM. Even after enabling both the paths, I am not able to
> > capture audio on both the channels. I am hearing audio only on either of
> > the channel, the other one is playing only noise for me. (This channel
> > swapping is random, sometimes it plays on left and sometimes on right.)
> >
> > If I disable ' Analog Right Capture Route AUXR', I am not hearing any
> > noise; audio is playing fine, but again on either of the channels, not
> > consistently on the left one.
> >
> > Moreover, in both the cases, I am getting large overrun errors (I am using
> > NFS to store the recorded clips, will try with MMC etc. too):
> >
> > root:~# arecord -f cd -d 30 rec05.dat
> > Recording WAVE 'rec05.dat' : Signed 16 bit Little Endian, Rate 44100 Hz,
> > Stereo overrun!!! (at least 8424.774 ms long)
> > overrun!!! (at least 6465.943 ms long)
> > overrun!!! (at least 3377.716 ms long)
> > overrun!!! (at least 7982.147 ms long)
> > overrun!!! (at least 8649.720 ms long)
> >
> > I didn't face both the problems on my original code base (2.6.29-rc3) and
> > hence wanted to confirm whether someone else has also faced the same
> > issues. I am debugging at my end to see what difference is causing the
> > problem but any pointers are welcome.
> 
> I have sent a patch, which should get the AUXR working again.
[Aggarwal, Anuj] Yeah, it is working fine now. Thanks for this.
I am still getting underrun errors, looking into this now.
> 
> >
> > Thanks and Regards,
> > Anuj Aggarwal
> >
> --
> Péter



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