I have learnt how to intergrate FMOD into Esenthel. This might extend the engine ability in sound process. So that I write down my learn process here for everyone who want to do the same thing (example codes included and updated along side my learning curve)
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Because it is hard to write stuff in thread editor, I leave the link to public notion link here, hope this help

https://cscdvmp.notion.site/How-to-imple...08ef?pvs=4

Why would you need Fmod?

Requested by modders who use fmod studio to create their sound collection. It helps implement sound effects via banks which are built by fmodstudio too and can be adjust by many filters in realtime.

Btw, 3D sound in EE does not really provide good sound location recognition, as my experience, the 3D sound example shows that the sound source has too small volume when going behind the listener. And if sound source is in front of listener, I can hear it loud even far away.

I don't have this problem.
On Windows, 3d calculations are done here:
https://github.com/Esenthel/EsenthelEngi...r.cpp#L511

I've checked and if sound is in front or behind camera (same distance), then volumes are the same.
You can check dsp.pMatrixCoefficients[0..3] all are 0.25
I have headphones (2 channels).
You might get different results if you have surround system.
Calculations are done by 'X3DAudioCalculate'

https://streamable.com/ueousa Here you are. pay attention to the moment that sound source goes behind camera (listener) and front, the volume suddenly changes. too small even behind but close to listener but still loud (normal) when in front

Mine is headphone too, computer use generic Realtek audio system

That's weird because I don't have this problem, it works completely fine for me.
You can observe how the dsp.pMatrixCoefficients[0..3] values change from the source code, that will help you narrow down the problem.