[linux-audio-user] noisy capture->playback
dplist at free.fr
Sun Nov 2 13:07:39 EST 2003
On 02 Nov 2003 09:48:44 -0600
Jan Depner <eviltwin69 at cableone.net> wrote:
> I'm not sure I'm following this. How have you got envy24control set
> up? Are H/W Out 1/2 set to PCM Out 1/2 or Digital Mix L/R? I've had
> a problem that sounds similar when using the Digital Mix L/R combo. I
> found that muting all of the channels except PCM Out 1/2 cleared it
> up. I think it was that PCM Out 1/2 were being overdriven.
I hear no noise when I set H/W Out 1/2 the right H/W In (straight input
monitoring) or when I set H/W Out 1/2 the Digital Mixer (after unmuting
and raising the level of the input channel of course).
Bad noise comes when I set H/W Out 1/2 to PCM Out 1/2 and connect using
jackd the alsa capture port (that map to a H/W In) to the alsa playback
port 1/2 (that maps to PCM Out 1/2).
Is this a better description ?
I've just upgraded my kernel to 2.4.22+ll and alsa to 0.9.8 but this did
not change the situation.
Thanks for answering.
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