Terra Cresta sound issue

I am running retroarch on archlinux/rpi2 & the soundtrack of Terra Cresta under FBA is problematic: The sound starts of with a slow speed at game start, and then it speeds up. Soundfx is normal.

Any tips on how to solve…?

There are two FBA cores, fb_alpha_libretro (the old one) and fba_libretro (the new one).

The issue should be fixed in the newer one.