Couple of examples:
Change pitch
Code:
rubberband -p 8 input.wav output.wav
Keep pitch change tempo
Code:
mplayer file.mp3 -af scaletempo -speed 1.5
sox file.mp3 newfile.mp3 tempo 1.5
Keep tempo change pitch
Code:
mplayer file.mp3 -af scaletempo=scale=1.0:speed=pitch
sox input.wav out.wav pitch 200
Change tempo, pitch, volume, equalize
Code:
sox in.wav out.wav speed .8 pitch 300 bass 5 treble 5 norm