stop_sample - Stops a sample from playing. Allegro game programming
library.
#include <allegro.h>
void stop_sample(const SAMPLE *spl);
Stop a sample from playing, which is required if you have set a sample
going in looped mode. If there are several copies of the sample
playing, it will stop them all. You must still destroy the sample using
destroy_sample().
play_sample(3alleg), destroy_sample(3alleg)