al_set_audio_stream_gain - Man Page

#include <allegro5/allegro_audio.h>

bool al_set_audio_stream_gain(ALLEGRO_AUDIO_STREAM *stream, float val)

Set the playback gain of the stream.

Returns true on success, false on failure. Will fail if the audio stream is attached directly to a voice.

al_get_audio_stream_gain(3).

al_get_audio_stream_gain(3).