Provided by: allegro5-doc_5.0.10-2_all 
NAME
al_get_audio_stream_gain - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro_audio.h>
float al_get_audio_stream_gain(const ALLEGRO_AUDIO_STREAM *stream)
DESCRIPTION
Return the playback gain.
SEE ALSO
al_set_audio_stream_gain(3alleg5).