On Wed, 5 Oct 2011, Polytropon wrote:
On Tue, 4 Oct 2011 20:58:14 -0700 (PDT), Brandon Kuczenski wrote:
I'm working on the sound on my system running 8.2-RELEASE. Currently I
have sound input and output working using snd_hda (i.e. I can record on
line in, and play it back on line out).
What I would like to do is take the audio coming in on line-in and send it
back out the line-out "live" without recording it.
Is this easy to do? I'd appreciate any hints.
I think it is easy to do. If I remember terminology
correctly, the thing you're searching for is MONITOR.
Instead of setting rec source to mic, set it to line,
and increase monitor level.
Thanks for your assistance.. unfortunately, setting the mixer
levels has not been enough to get a passthrough. Here is my mixer output:
Mixer vol is currently set to 1:1
Mixer pcm is currently set to 45:45
Mixer line is currently set to 75:75
Mixer mic is currently set to 0:0
Mixer cd is currently set to 75:75
Mixer rec is currently set to 75:75
Mixer igain is currently set to 100:100
Mixer ogain is currently set to 50:50
Mixer monitor is currently set to 100:100
Recording source: line
I'm using wavplay(1) from the ports collection to record on line-in, and
then I can play it back. On playback I can hear it just fine-- it mixes
with other outputs on the PCM channel as I would expect. but when the
line is "live" it is not being mixed into the output.
The line level should be possible to set independently
of the rec channel setting, so you should be able to
pass through line anyway - at least, that has been the
default ability of sound cards when they became available
for PC. But well... this has been 10... 20... years ago,
and nobody expects simple things to work as simple today
as they did in the past. :-)
Indeed, I wonder if it is a hardware capability problem, but I don't know
how to try to answer that question.
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