> warnhold@xxxxxxxxxxxxxxxxxx wrote: >> Hi, >> >> I'm not quite sure if this is the right place to ask but I don't know a >> better one: When recording from line input with audacity I get a totally >> clanging result. Even at quiet places in the music I hear a low noise, >> when magnifying I see a sawtooth-form wave of about 4000 Hz. > Maybe someone else will have an idea of what this is. Any RF sources > nearby? What happens if you use the beta version of audacity? >> >> During the recording, when i directly hear the music, it seems to be ok. > > Heard from the line source independently, or through the sound card? > >> When I do the recording at the same conditions using arecord from the >> command line the result is ok too. This way is not very convenient >> because >> one can judge the right pitch only afterwards. > > The fact that arecord works without issue indicates to me that this is > not an ALSA issue. It is using alsa to get the audio it records. > It probably isn't a sound card issue either. Or it might be a fluke > when the actual source of the interference is inactive. > >> >> I use Debian. With version 3 recording with Audacity was ok, using the >> same hardware at Debian 4.0r3 and 4.0r4 gives this evil result. It's the >> same when I use ReZound and another program I tried too. > > I don't get a connection between the kernel version and the issue. > Do these use different versions of alsa? What happens if you use the > latest driver and library from alsa? > >> >> Where might the reason be? > > Good question! :-) > > Maybe someone more knowledgeable than me can answer it. > >> >> Thanks in advance >> >> Werner > > Hi, as far as I found out one thing that is common with audacity and ReZound that they are running with alsa-oss emulation. How can I find out if this is correctly configured? -- Werner Arnhold Tel.: 030-74 22 555 Mobil: 0163-15 84 374 warnhold@xxxxxxxxxxxxxxxxxx ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
