debian man page for voice_ramp_volume

voice_ramp_volume(3alleg4)					  Allegro manual					voice_ramp_volume(3alleg4)

NAME
       voice_ramp_volume - Starts a volume ramp for a voice. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void voice_ramp_volume(int voice, int time, int endvol);

DESCRIPTION
       Starts  a  volume ramp (crescendo or diminuendo) from the current volume to the specified ending volume, lasting for time milliseconds. The
       volume is a value in the range 0-255.

SEE ALSO
       voice_set_volume(3alleg4)

Allegro 							   version 4.4.2					voice_ramp_volume(3alleg4)