Topic on Talk:Final Fantasy VII Remake Intergrade
Not a definitive solution but it should work for now:
1- Install FFVIIHook
2- Once you get this mod working, open the console
3- Put "au.SetAudioChannelCount 10" (without quotes) and enter
4- The game will be no sound but no fear just do the next step
5- Open the console again and put "au.SetAudioChannelCount 0" (without quotes) and enter
6- Now the sound should be "fixed"