To make or build just type make To test: - 1) Just stereo sound from one stereo jack: - ./speaker-test -Dfront -c2 2) A 4 speaker setup from two stereo jacks: - ./speaker-test -Dsurround40 -c4 3) A 5.1 speaker setup from three stereo jacks: - ./speaker-test -Dsurround51 -c6 4) To send a nice low 75Hz tone to the Woofer and then exit without touching any other speakers: - ./speaker-test -Dplug:surround51 -c6 -s1 -f75