recording and noise
antonio
using this command:
cat < /dev/dsp > out
and then
cat < out > /dev/dsp
I obtain a very bad-quality sound with a lot of noise in background...
Using windows, this doesn't happened.
but using a prerecorded one, like
cat < /usr/share/sounds/ekiga/newmessage.wav > /dev/dsp
I obtain a perfect output.
dmesg | grep -i sound; dmesg | grep -i audio
does not output anything.
My PC is Compaq Armada
motherboard: Gamila/Giovani/Neon series
vendor: MICRO-STAR INTERNATIONAL CO., LTD
any idea?
thanks
Hactar
antonio <x...@xxx.xx> wrote:
> Hi, i have a problem using audio on linux
>
> using this command:
>
> cat < /dev/dsp > out
>
> and then
>
> cat < out > /dev/dsp
>
> I obtain a very bad-quality sound with a lot of noise in background...
Are you sure that recording and playback use the same default
parameters?
Tried using arecord and aplay?
--
-eben QebWe...@vTerYizUonI.nOetP http://royalty.mine.nu:81
"God does not play dice" -- Einstein
"Not only does God play dice, he sometimes throws
them where they can't be seen." -- Stephen Hawking
antonio
>
> Are you sure that recording and playback use the same default
> parameters?
>
> Tried using arecord and aplay?
>
Yes! using arecord-aplay, and tuning its parameters, quality improves a lot!
thanks... but, can I get the same result using cat?
I mean.. can I set better quality as default?
(my /dev/dsp-defaults is 8000fps... very useless!)
Hactar
Might be modprobe-time (check /etc/modprobe.d/*) or compile-time setting
(check /lib/modules/`uname -r`/build/.config) settings. Dunno, never
tried to do that.
--
-eben QebWe...@vTerYizUonI.nOetP http://royalty.mine.nu:81
An ASCII character walks into a bar and orders a double. "Having a bad
day?" asks the barman. "Yeah, I have a parity error," replies the ASCII
chrcter. The barman says, "Yeah, I thought you looked a bit off." - Skud