#6444 MADE: RTZ - sound volume issue

[misterhands]

Latest Win 64 Nightly
RTZ DOS CD v1.2 English

From the beginning of the game, go to the lighthouse. There, a water sound can be heard.
In the original interpreter, that sound is quiet at the front, and louder at the back of the lighthouse.
In ScummVM, the volume is the same in both cases.