[Scummvm-tracker] [ScummVM :: Bugs] #11354: CASTLEBRAIN: Stereo audio flipped in hourglass puzzle

[ScummVM :: Bugs]

#11354: CASTLEBRAIN: Stereo audio flipped in hourglass puzzle
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  Reporter:  henke37              |      Owner:  (none)
      Type:  defect               |     Status:  new
  Priority:  normal               |  Component:  Engine: SCI
Resolution:                       |   Keywords:  stereo audio hourglasses
      Game:  Castle of Dr. Brain  |
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Comment (by ZvikaZ):

 Which audio device are you using?
 If it's MT32, try GM. If it's GM, try MT32.

 Explanation - MIDI defines controller #7 as 'pan' (i.e., location of
 channel in the right/left axis). That's way stereo effects are created.

 However, sadly, the pre-GM MIDI spec hasn't defined the details of this,
 and MT32 and GM uses different values!
 GM defines 0 as most-left, and 127 as most-right; while MT32 is using 0 as
 most-right and 127 as most-left.

 Therefore, it's expected that MT32 and GM will have reversed stereo
 locations, unless we'll support that in the drivers (which as far as I
 remember, we don't).

 According to the list at
 https://en.wikipedia.org/wiki/List_of_MT-32-compatible_computer_games,
 Castle of Dr. Brain was composed for MT32.

 Therefore, hopefully, you're using GM, and it makes sense that you'll
 heard the stereo flipped, and it'll be solved by changing to MT32.
-- 
Ticket URL: <https://bugs.scummvm.org/ticket/11354#comment:4>
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