VU Meter with SDL_Mixer

Hi guys. is it possible with SDL_Mixer read (get) de amplitude sound time by time? My interest it’s construct a VU Meter… for this, I need the intensity, amplitude of sounds, for example, 0.2 - 0.2 seconds… SDL_Mixer has one function for this? I search, but don’t found…
Thanks…

I second this unanswered question.