Malcolm Baldridge <linux-audio(a)paypc.com> writes:
This brings me to my question. It turns out that I
should be sending a
"beep" down the lines I am monitoring to notify the parties that they are
being recorded. I have a spare output channel [the R channel of the main
PCM device]. The L channel is providing music-on-hold, remember, via mpg123
which is using the ALSA driver.
How can I configure ALSA (via asoundrc?) to split the PCM device into two
independently accessible components for the L and R channels? I'm very
pleased with mpg123 and do not feel I need to reinvent any wheels on that
side. I don't feel it necessary to give Jack more to do, so I'd like to
stay out of Jack if possible. (I run jackd with "jackd -R -d alsa -S -C -p
4096 -M -n 2 -r 11025").
Don't know about ALSA, but sending beeps through JACK should be
trivial. You could probably hack the jack_metro example client to do
that in just a few minutes.
--
joq