Spyro 2 sound issues

[mach2k]

Hi,

I'm having trouble playing Spyro 2 on my recalbox (either US or EU version).
There are many sound issues especially during cutscenes.
I found some posts about it on the web, but only for ePSXe emulator talking about setting up the "P.E.Op.S. Audio Driver 1.10".

http://psxdatacenter.com/games/P/S/SCES-02104.html

Is there a way to achieve this on Recalbox?

Thanks in advance

Raspberry Pi model: Rpi 3
Recalbox version (build) : 4.0.0
Hardware (Micro SD, Power Supply, etc.): SanDisk Ultra 64 Go Classe 10
Controller(s): PS3
Which Game: Spyro 2 (EU or US)
Emulator used: Libretro/PCSX Rearmed
Is the problem reproducible (how): During the cutscenes especially