Sound effects in QFG1VGA aren't playing in the nightly build. They work in 1.8.1.
To reproduce, start the game and click Introduction on the first screen. The intro starts with a dragon breathing fire with a fire-breathing sound. This plays in 1.8.1 but not the nightly build. The sounds during fighting have also stopped, which is how I noticed.
Tested on Windows 7 and XP. Default ScummVM audio settings in both cases.
It seems digital audio is broken for all SCI16 games.
I checked Larry 5 + Space Quest 3.
This was a regression from 46551fd4, and should be fixed now. Thanks for the report.