BURIED: Volume controls other than "Mute All" do not work

[Thunderforge]

The only volume control that affects Buried in Time is "Mute All". I expect that all the controls should work.

Reproduction Steps

1. In ScummVM, go to Options… → Volume
2. Check "Mute All"
3. Click "Apply"
4. Start Buried in Time.
5. Expected Behavior: Music sound effects and speech will all be off
6. Close Buried in Time
7. In ScummVM, go to Options… → Volume
8. Uncheck "Mute All"
9. Set "Music volume", "SFX volume", and "Speech volume" to 0
10. Click "Apply"
11. Start Buried in Time.
12. Unexpected Behavior: Music, sound effects, and speech are all at full volume
13. Close Buried in Time
14. In ScummVM, go to Options… → Volume
15. Uncheck "Mute All"
16. Set "Music volume", "SFX volume", and "Speech volume" to 256
17. Click "Apply"
18. Start Buried in Time.
19. Unexpected Behavior: Music, sound effects, and speech are all at full volume, and just as loud as they were when set to 0

I ran into this because I thought that the music was too loud and was drowning out the voices. I tried turning down the music, but it made no difference. I eventually found that none of the volume controls were responding, except for Mute All.

Versions

• ScummVM Windows nightly 2021-08-31
• The Journeyman Project 2: Buried in Time 1.00 24-bit

[Thunderforge]

Also found that setting Options… → Audio → Preferred Device to "No music" has no effect.

[sev-]

This would be nice to have fixed before the release.

[NMIError]

Due to the nature of the sound code for this engine, the different volume controls do not represent the types of sound in the game exactly:

Ambient (music, environment sounds): music
AI voice: speech
Effects, interface, footsteps, movie audio: SFX

The movie audio is pre-mixed music, speech and SFX; only the overall volume can be controlled using the SFX volume control.