Audio Properties Overview

This page gives a detailed overview of the audio properties that GameMaker supports and the different "levels" at which you can set/change them.

The table below lists all applicable levels for the basic audio properties, and lists the functions you can use the set and get each property at each level.

Level	Gain	Pitch	Offset	Listener Mask
Asset	audio_sound_gain audio_sound_get_gain	audio_sound_pitch audio_sound_get_pitch	audio_sound_set_track_position audio_sound_get_track_position	N/A
Group	audio_group_set_gain audio_group_get_gain	N/A	N/A	N/A
Emitter	audio_emitter_gain audio_emitter_get_gain	audio_emitter_pitch audio_emitter_get_pitch	N/A	audio_emitter_set_listener_mask audio_emitter_get_listener_mask
Instance/Voice	audio_sound_gain audio_sound_get_gain audio_play_sound, etc.	audio_sound_pitch audio_sound_get_pitch audio_play_sound, etc.	audio_sound_set_track_position audio_sound_get_track_position audio_play_sound, etc.	audio_play_sound, etc.
Global/Listener	audio_master_gain audio_set_master_gain audio_get_master_gain	N/A	N/A	audio_set_listener_mask audio_get_listener_mask
Result	Gasset * Ggroup * Gemitter * Ginstance	Passet * Pemitter * Pinstance	Asset-level offset unless instance-level offset is given	Memitter & Minstance (bitwise AND, see Bitwise Operators)

Notes

The default asset-level gain is the value of the sound asset's "Volume" slider: 

This can still be changed in-game later by calling audio_sound_gain with the sound asset ID as the argument: 

audio_sound_gain(snd_Explode, 0, 0);  // Set the asset-level gain to 0 (new instances of this sound play muted)