Provided by: allegro5-doc_5.2.8.0-2_all 
NAME
al_get_sample_instance_frequency - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro_audio.h>
unsigned int al_get_sample_instance_frequency(const ALLEGRO_SAMPLE_INSTANCE *spl)
DESCRIPTION
Return the frequency (in Hz) of the sample instance’s sample data.