To make or build just run
./build

To test: -
1) Just stereo sound from one stereo jack: -
./speaker_test -Dfront -c 2
2) A 4 speaker setup from two stereo jacks: -
./speaker_test -Dsurround40 -c 4
3) A 5.1 speaker setup from three stereo jacks: -
./speaker_test -Dsurround51 -c 6

