sound problem: beeps, cracks (Beagleboard C4, Debian)

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1

Hi everyone!

I am trying to fix some sound issues but I am not sure where to poke
at. I'm using a Beagleboard C4 running Debian Squeeze, Kernel 2.6.29,
Alsa 1.0.18a

this is the original sound file:
http://www.arminbwagner.com/misc/erde.mp3
and this is a recording of the BB output:
http://www.arminbwagner.com/misc/bb_test_erde.mp3

I played the file 3 times using mpg321. There's a loud beep at the
beginning. It's played correctly afterwards but a loud crack follows.
Then there's the beep sound again. Sometimes the beginning of the
soundfile is cut off too.

Has anyone experienced anything similar?

2

Might be related to the following bug (in some way or another):

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/381201
https://fedoraproject.org/wiki/Common_F12_bugs#hda-clicks
https://wiki.archlinux.org/index.php/ALSA#Pops_When_Starting_and_Stopping_Playback

3

So, 2.6.29 was released over two years ago. (23 March, 2009)..

Care to retest with 2.6.38?

wget http://rcn-ee.net/deb/squeeze/v2.6.38.2-x1/install-me.sh
/bin/bash install-me.sh

Regards,

4

Thanks, that helped indeed. There is still some kind of "on/off"
sound, but it's *much* better than before.

regards,
Armin