1To make or build just type 2 3make 4 5To test: - 61) Just stereo sound from one stereo jack: - 7./speaker-test -Dplug:front -c2 82) A 4 speaker setup from two stereo jacks: - 9./speaker-test -Dplug:surround40 -c4 103) A 5.1 speaker setup from three stereo jacks: - 11./speaker-test -Dplug:surround51 -c6 12 13