I am totally overwhelmed by AudioLink. The only thing I can get working is SoundWaves SoundCues to link with an Attenuation Asset and from there to an AudioLink Setting Asset, which contains the ProgrammerInstrument Event from FMOD.
I have no clue how to work with mixes etc.
In the documentation, it shows the submix asset with the activation of AudioLink and an empty? SoundLink Settings asset…
The use case for me in my project is, that we use a weather system from the UE Store, which comes with a lot of Sound, even spatialized lightning strikes - and all of that should be routed into FMOD, but with the spatialization from UE or a possibility, that these sounds which get spawned on the strike position get spatialized by FMOD.
I don’t know where to start as there are no tutorials etc. available.
I would love to see the FMOD team would revive the FMOD-TV YouTube Tutorials…
I could not found any Attenuation Setting belonging to that, just that Audio Spawn and LPF-filter.
Furthermore, the Sound Class has no submix in it and the UDS system has no submix in it - that should I add, if I see it correctly to send the UDS_Weather Sound Class to FMOD, right? Or is there a better solution?
All other weather sounds, like rain and wind also have the UDS_Weather Sound Class.
Btw. in that project, where I took the screenshots FMOD is not updated to 2.02.20 yet.
I am stuck with 3D sounds. It does not work as I imagine and I can’t even pinpoint the issue. Not even in my simple test map.
Do I get this right: If I use Attenuation Settings I can’t use the mixes?
Or do I need that at all?
Second, if I have an attenuated UE Sound Cue I can’t disable the Attenuation (Spatialization) in Attenuation Setting, because if I do, the position of the sound comes from world origin. However, it seems spatialized by FMOD since the 2D Pan Mix works…
Another issue is, that if I go to far away from the 3D UE sound cue, the sound stopps (tested it with 2D Pan Mix).
Normally, if I get it right, I have to say in the UE Attenuation Setting whether UE or AudioLink has the spatialization. Strangely enough, AL and therefore FMOD always has spatialization.
If I say that UE should have it (by activating it in the Attenuation Setting), the FMOD spat works correctly, if I say that FMOD should have it (by deactivating it in the Att setting), I have the World Origin problem, which means, that the sound is spatialized, but to the world origin.
It is not that you cannot use the Submix while using Attenuation Settings, however, a source and Submix containing the same signal chain can cause data duplication and result in loud and undesirable audio stacking. Information found in Audio Link | Trouble Shooting.
Concerning the documentation, it is wrong and I have made a note to change it. Please keep the UE spatialization enabled for it to work correctly. There is also an issue with the events moving to their position in the map when they are played which we are aware of and are looking into a solution.
Thank you for bringing this to our attention, once there are updates for these issues I will update this thread.
Hm, it seems, that as soon as I give an Attenuation Setting to a SoundCue the Soundclass (and Submix) gets ignored.
So, finally, my conclusion is:
2D Sounds via mix to FMOD is easy with AudioLink
3D Sounds don’t work with Submixes and should be handled as separate sounds and get mixed in the FMOD mixer.
The idea of a “catch-all” pre-mix in UE does not work probably and, at least currently, has more issues than it solves.