ALLEGRO_VOICE - Allegro 5 API

       A  voice  represents  an  audio  device  on the system, which may be a real device, or an abstract device
       provided by the operating system.  To play back audio, you would attach a mixer, sample instance or audio
       stream to a voice.

       ALLEGRO_VOICE - Allegro 5 API

ALLEGRO_MIXER(3alleg5), ALLEGRO_SAMPLE(3alleg5), ALLEGRO_AUDIO_STREAM(3alleg5)

Allegro reference manual                                                                  ALLEGRO_VOICE(3alleg5)

              #include <allegro5/allegro_audio.h>

              typedef struct ALLEGRO_VOICE ALLEGRO_VOICE;