Command line switch reference

switch parameter
-a downmix stereo file to mono
-b bitrate (32, 40, 48, 56, 64, 96, 112, 128, 160, 192, 224, 256, 320)
-c mark track as copyrighted
-e de-emphasis (n, 5, c)
-f extra fast
-g turn on MP3x graphical frame analyser (may not be available on your platform)
-h use experimental improvements (for internal testing)
-k use full bandwidth
-m stereo mode (s, j, f, m)
-o mark track as non-original
-O use original low-quality ISO psycho-acoustic model
-s sample rate in input file (only needed for raw file input, 44.1 kHz is default)
-S don't print progress report
-x force byte-swapping of input