php man page for adjust_sample

adjust_sample(3alleg4)						  Allegro manual					    adjust_sample(3alleg4)

NAME
       adjust_sample - Alters the parameters of a sample while it is playing. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void adjust_sample(const SAMPLE *spl, int vol, int pan, int freq, int loop);

DESCRIPTION
       Alters  the  parameters	of  a  sample while it is playing (useful for manipulating looped sounds). You can alter the volume, pan, and fre-
       quency, and can also clear the loop flag, which will stop the sample when it next reaches the end of its loop. The values of the parameters
       are  just  like	those  of  play_sample().  If there are several copies of the same sample playing, this will adjust the first one it comes
       across. If the sample is not playing it has no effect.

SEE ALSO
       play_sample(3alleg4), exsample(3alleg4)

Allegro 							   version 4.4.2					    adjust_sample(3alleg4)