Occasionally, The Labyrinth of Time will attempt to play sound/music using a ShowDiff action rather than PlaySound or PlaySoundLooping. The DOS and Windows re-release versions handled ShowDiff by pausing the game for the duration of the sound.
The ScummVM implementation does not pause the game, ending the sounds as soon as any on-screen animations are finished.
For an example, see Scene 9. Pulling the toilet chain should play a flushing sound, which now cuts off as soon as the chain animation is finished. Hitting the toilet with a sword should produce a clanging noise, but since there is no animatoin, it does not play at all.
Save file attached is Scene 9 from the Windows re-release. The toilet chain can be moved, and the sword is in the inventory for hitting the toilet.
Reproduced in ScummVM 1.8.0git6220-g792ae03 (Jan 23 2016 05:15:05), Win32
I have added some code to wait for the end of the sound effect before finishing a diff. It's fixing the toilet behavior. It'll be available in the next nightly built.
Toilet, sword, and other instances all work in 1.8.0git6246-g75d1385 (Jan 25 2016 05:14:45), Win32.
Thanks for the feedback! Closing it.