I read:
How i can from my linux C program at the same time
take sound from souncard line input ( ,maybe change level and something else )
AND give it back to line output
system("cat /dev/dsp > /dev/dsp");
no but seriously, you might want to take a look at jack (
http://jackit.sf.net/)
there are example sources that come with the package to get you started.
regards,
x
--
chris(a)lo-res.org Postmodernism is german romanticism with better
http://pilot.fm/ special effects. (Jeff Keuss / via
ctheory.com)