Equalizer in player?

[Fred moyer]

I realize this might be asking a lot, but does anyone know how to  
tweak the sound from a player object? For example, I wish I could do  
the following:
    - adjust treble or bass (EQ)
    - compression (not allowing the music to go over a certain volume)
    - change speed of the music without changing pitch

Thanks a lot
Fred Moyer