Linux sound alsa
From thelinuxwiki
A PCM stream is a digital representation of an analog signal
notes
files of interest...
/etc/conf.d/alsasound
/usr/bin/alsaucm
/usr/bin/alsamixer
/usr/bin/alsa-info
/usr/bin/alsaloop
/usr/share/doc/alsa-lib-1.0.26
/usr/share/doc/alsa-utils-1.0.26
string of interest....
echo "main(i){for(i=0;;i++)putchar(((i*(i>>17|i>>9)&46&i>>3))^(i&i>>10|i>>100));}" | gcc -x c - && ./a.out | aplay
