> -----Original Message----- > From: Peter Ujfalusi [mailto:peter.ujfalusi@xxxxxxxxx] > Sent: Thursday, May 07, 2009 4:38 PM > To: alsa-devel@xxxxxxxxxxxxxxxx > Cc: todd.fischer@xxxxxxxxxxxx; Aggarwal, Anuj; linux-omap@xxxxxxxxxxxxxxx > Subject: Re: [alsa-devel] Beep sound in the end of audio file > > On Thursday 07 May 2009 08:48:25 Ujfalusi Peter (Nokia-D/Tampere) wrote: > > On Wednesday 06 May 2009 17:19:49 ext Todd Fischer wrote: > > > Hi, > > > > > > FWIW: while developing a GSTreamer presentation using a BegleBoard > (rev > > > C), I noticed the same "tuck" sound. It also occurs a second or two > > > after the GST application exits. I assumed it was some power > management > > > code that was disabling the audio codec after it had gone idle, but never > > > looked into it. BeagleBoard also uses TWL4030. > > > > > > GST command: gst-launch audiotestsrc freq=1000 num-buffers=100 ! > alsasink > > > > > > /proc/version: Linux version 2.6.28-omap1 (ddompe@Aleph) (gcc version > > > 4.3.1 (GCC) ) #2 Thu Mar 5 08:55:58 CST 2009 > > > > The "tuck" is coming from the codec, when it is powered down (in the old > > twl4030 codec found in omap-2.6.28 branch of linux-omap). > > But, it still happens with the latest version, when the codec is muted > > only. I can observe the "tuck" on Headset output, but not on the > > PreDrive... The Headset enable and disable is implemented according to the > > TRM, but it seams that additional tweaking is needed.. > > I need to revisit this... > After more testing and debugging, it seams that I can not confirm the > existence of the "tuck" (with the latest twl4030 codec code). > As soon as I receive my Beagle board I will test it again (can anyone test > this with latest ASoC code on Beagle?)... > > [Anuj]: What kernel are you using where you have the beep? [Aggarwal, Anuj] 2.6.29-rc3 > > -- > Péter -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
