From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: Re: Beep sound in the end of audio file Date: Thu, 7 May 2009 14:08:14 +0300 Message-ID: <200905071408.14629.peter.ujfalusi@nokia.com> References: <5A47E75E594F054BAF48C5E4FC4B92AB0305559FCC@dbde02.ent.ti.com> <1241619589.8928.2038.camel@sax-lx.fischerfamily.org> <200905070848.25904.peter.ujfalusi@nokia.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <200905070848.25904.peter.ujfalusi@nokia.com> Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org Cc: "Aggarwal, Anuj" , "todd.fischer@ridgerun.com" , "linux-omap@vger.kernel.org" List-Id: linux-omap@vger.kernel.org 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 nev= er > > looked into it. BeagleBoard also uses TWL4030. > > > > GST command: gst-launch audiotestsrc freq=3D1000 num-buffers=3D100 ! al= sasink > > > > /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? -- = P=E9ter