Hallo,
I use a mini2440 with 128 mb ram and the actual pengutronix bsp with
kernel 3.7.7-ptx-master.
To the ptxconfig.qt I add an apache2 webserver and an openssh server.
The rest is the standard configuration.
If I try to play or record audio with alsa (aplay/arecord) the result is
scrambled. There is a continuous clicking noise with an interval of
approximate 500ms . Between the clicking noise the audio is ok.
What I do is the following:
- alsamixer -> set input mux to both, higher mic & mic sensitivity
controller
- arecord -f S16_LE -r 8000 -c 1 test.wav
If I play the recorded file on my pc I have that clicking noise (I can
upload an example - it has app. 80kB but I'm not sure if this is allowed).
top ( and also the qt test app) means, that arecord uses app. 3.5% mem
and 2.0 % cpu.
Does anyone have an idea what the problem is?
Regards,
Thomas