RE: Beep sound in the end of audio file
-Original Message- From: Peter Ujfalusi [mailto:peter.ujfal...@nokia.com] Sent: Wednesday, May 06, 2009 11:03 AM To: Aggarwal, Anuj Cc: linux-omap@vger.kernel.org; alsa-de...@alsa-project.org Subject: Re: Beep sound in the end of audio file Hello, On Tuesday 05 May 2009 20:03:57 ext Aggarwal, Anuj wrote: Hi, After playing out any audio file on OMAP3 EVM, having TWL4030 codec, I am hearing a beep sound. I have also tried implementing a mute function in which I disabled all the inputs/outputs but still that didn't help. Any idea how this can be avoided? I have not heard from this kind of problem so far, which does not mean, that it does not exist ;) Can you describe the beep sound? [Aggarwal, Anuj] It's kind of a tuck sound coming in the end, after 1 or 2 seconds. After a quick look I can not pin point the soc board file used with the omap3evm board. Is it in the tree? [Aggarwal, Anuj] No, it is not. Reason being we already have beagle sdp3430 there, which are both similar to omap3evm, which I pushed. So mine got rejected. We had some discussions on how to handle this scenario but nothing got finalized. Does the beep happens in these cases also (after stopping it with Ctrl+C): aplay -f dat /dev/zero aplay -f dat /dev/urandom [Aggarwal, Anuj] Yes, it comes in both the cases. CC-ing alsa-devel... Thanks and Regards, Anuj Aggarwal Platform Support Products Texas Instruments Incorporated -- Péter -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Beep sound in the end of audio file
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 (ddo...@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.. -- Péter -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Beep sound in the end of audio file
Hello, On Tuesday 05 May 2009 20:03:57 ext Aggarwal, Anuj wrote: Hi, After playing out any audio file on OMAP3 EVM, having TWL4030 codec, I am hearing a beep sound. I have also tried implementing a mute function in which I disabled all the inputs/outputs but still that didn't help. Any idea how this can be avoided? I have not heard from this kind of problem so far, which does not mean, that it does not exist ;) Can you describe the beep sound? After a quick look I can not pin point the soc board file used with the omap3evm board. Is it in the tree? Does the beep happens in these cases also (after stopping it with Ctrl+C): aplay -f dat /dev/zero aplay -f dat /dev/urandom CC-ing alsa-devel... Thanks and Regards, Anuj Aggarwal Platform Support Products Texas Instruments Incorporated -- Péter -- To unsubscribe from this list: send the line unsubscribe linux-omap in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
