Stereo left right speaker test music
with reverse left right polarity (incorrect phase) test

Audio Level: 0dB

0:02 Left and right
0:09 Left only
0:16 Right only
0:23 Left and right
0:29 Left and right with reverse polarity
0:36 Stereo
0:43 Left only
0:50 Right only
0:57 Stereo

Audio Signal Suite
your Audio Sound Test Channel