Audio Is it performance-friendly to use both FMOD and the Unity Audio at the same time?

Hello,
When you use FMOD, I was told to disable the default Audio engine. Would be glad if anyone could help and tell me if Is it performance-friendly to use both FMOD and the Unity Audio at the same time.

In other words, Do we have to use FMOD for all the sounds in Unity due to performance reasons?

Thanks in advance.

 

I can't see why you would want to do this? Is there any reason you don't stick with FMOD running sound if you are using it anyway?

 

Actually, I've spent a lot of time designing some "sound granular" and "media player" systems for my project, I don't know if it worths to keep them while using FMOD or just recreate the systems with FMOD only for performance reasons.