[ScummVM 1.0.0] No speech on Full Throttle (Nokia 5530)

[wingnux]

Hello guys!
I've recently installed ScummVM 1.0.0 on my Nokia 5530 XpressMusic and it works great! So far I've tested "Full Throttle" and "Beneath a Steel Sky (CD Version)", both run at full speed but I can't get speech to work on "Full Throttle" (they work just fine with BaSK).
Sound and music are ok but it won't play any voice samples after the intro, where the voices DO WORK until Ben is knocked out and the gameplay begins.

Any help?

Thanks in advance!

PS.: The speech on Full Throttle work just fine on my PC (the same files) so it's not an install issue.