[Scummvm-tracker] [ScummVM :: Bugs] #13546: LSL6: Games may restore with muted music or broken volume fade-out (was: LSL6: Saves may not restore with working music fade-out)

[ScummVM :: Bugs]

#13546: LSL6: Games may restore with muted music or broken volume fade-out
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Reporter:  RayKoopa            |       Owner:  (none)
    Type:  defect              |      Status:  new
Priority:  normal              |   Component:  Engine: SCI
 Version:                      |  Resolution:
Keywords:  music, audio, save  |        Game:  Leisure Suit Larry 6
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Changes (by RayKoopa):

 * summary:  LSL6: Saves may not restore with working music fade-out =>
     LSL6: Games may restore with muted music or broken volume fade-out


Old description:

> - ScummVM 2.6.0git6340-g974c51b4cd1 (Jun 5 2022 09:42:22)
> - Game language: English
> - Game version: Hi-Res 1.000.000
> - Windows 11 21H2 10.0.22000.675
>
> Steps to reproduce (not 100% sure yet):
> - Leave a room which causes a 5 second volume fade-out of the previous
> room's background music before starting the new room's music (for
> example, when entering the hotel interior from the pool).
> - Save the game while the fade is in progress.
> - Restore this game.
> - Notice that there's a chance of the previous room's music now being
> stuck at the volume at the time of saving.
>
> In DOSBox, the behavior is different: The fade-out of the previous room's
> music "restarts" at full volume and full 5 second duration, and then
> properly starts the current room's music.
>
> I cannot reproduce this every time yet. It may be required to quickly
> move "one room further" before the fade-out ends (e.g. in the above
> example, to a 2nd hotel interior) and then quickly save the game. I
> attached a save game where this happened exactly like that.
> I remember this happening quite often when I tested the previous music
> channel bug on fresh games. I'll update the ticket once I found an easier
> / safer way to reproduce it.

New description:

 - ScummVM 2.6.0git6340-g974c51b4cd1 (Jun 5 2022 09:42:22)
 - Game language: English
 - Game version: Hi-Res 1.000.000
 - Windows 11 21H2 10.0.22000.675

 Steps to reproduce (not 100% sure yet):
 - Leave a room which causes a 5 second volume fade-out of the previous
 room's background music before starting the new room's music (for example,
 when entering the hotel interior from the pool).
 - Save the game while the fade is in progress.
 - Restore this game.
 - Notice that there's a chance of the previous room's music now being
 stuck at the volume at the time of saving.

 In DOSBox, the behavior is different: The fade-out of the previous room's
 music "restarts" at full volume and full 5 second duration, and then
 properly starts the current room's music.

 I cannot reproduce this every time yet. It may be required to quickly move
 "one room further" before the fade-out ends (e.g. in the above example, to
 a 2nd hotel interior) and then quickly save the game. I attached a save
 game where this happened exactly like that.

 Another possibly related issue is that LSL6HIRES sometimes starts or
 restores games with music turned "off" - even after returning to the game
 selection and starting the game anew.

--
Comment:

 Add note about music being off when starting / restoring game
-- 
Ticket URL: <https://bugs.scummvm.org/ticket/13546#comment:3>
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