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Date: Sun, 25 May 2003 19:45:45 -0700
From: Ed Hall <edhall@weirdnoise.com>
In-reply-to: Message from Carl Makin <carl@stagecraft.cx>
 "of Mon, 26 May 2003 12:03:00 +1000."
 <2DA1BD42-8F1E-11D7-95BC-003065A27FC0@stagecraft.cx>
To: Carl Makin <carl@stagecraft.cx>
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cc: "Daan Vreeken \[PA4DAN\]" <Danovitsch@Vitsch.net>
cc: FreeBSD-multimedia@freebsd.org
Subject: Re: Stopping playthru
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Carl Makin <carl@stagecraft.cx> wrote:
> Hi Daan,
> 
> On Sunday, May 25, 2003, at 08:49 PM, Daan Vreeken [PA4DAN] wrote:
> 
> > On Sunday 25 May 2003 05:24, Carl Makin wrote:
> >> really well.  Except for one problem.  It seems sound in via the line
> >> in socket is being played through the line out socket, ie it looks 
> >> like
> >>
> >> Can anyone give me a clue on how to disable this please?
> 
> > Have you tried to set the line-volume to 0?
> > You could do this with : mixer line 0
> 
> Then of course I can't receive.  What I have been doing is hitting the 
> "mute" on the line in just before starting transmitting but it is a 
> royal PITA.
> 
> What I need is some way of disabling the audio play through on the card.
> 
> 
> Thanks anyway,
> 
> 
> Carl.
> vk1kcm

Your soundcard mixer may have a channel (sometimes called "monitor")
that controls the playthrough.  Turn it off:

    mixer monitor 0:0

and the playthrough should stop.  It may be some other channel (your
soundcard may not be wired quite as expected) -- just turn down all
channels you don't need.

		-Ed