All sounds and musics are OGG encoded with:
- 44100Hz sample rate
- 2 channels (stereo)
- 16 bits per sample
- -3dB peak level (to avoid clipping when mixing several sounds)
 
Sox command to resample a file:
sox input.ogg output.ogg gain -n -3 rate -v -s -M 44100 channels 2 dither -s

