Audio emitters are provided to increase the flexibility of the GameMaker Studio 2 audio engine, and they permit you to add real time effects to your audio assets, like pitch and Doppler variations, as well as the ability to position your sounds within the 3D audio space and give them realistic motion effects. All these functions are affected by the position of the listener within the audio environment and so will require that you use the provided functions for changing the listener position, velocity and orientation too (see - Audio Listeners).

The following functions exist to deal with audio emitters:

1. audio_emitter_create
2. audio_emitter_exists
3. audio_emitter_position
4. audio_emitter_velocity
5. audio_emitter_falloff
6. audio_emitter_gain
7. audio_emitter_pitch
8. audio_emitter_free
9. audio_play_sound_on
10. audio_emitter_get_gain
11. audio_emitter_get_pitch
12. audio_emitter_get_x
13. audio_emitter_get_y
14. audio_emitter_get_z
15. audio_emitter_get_vx
16. audio_emitter_get_vy
17. audio_emitter_get_vz