Opened 19 years ago

Closed 19 years ago

Last modified 19 years ago

#1986 closed defect (duplicate)

MI2: Native MT-32 mode corrections

Reported by: SF/tbcarey Owned by: kingguppy
Priority: normal Component: Engine: SCUMM
Version: Keywords:
Cc: Game: Monkey Island 2


I noticed the following two issues regarding Native MT-32 playback in MI2 while testing some other MIDI settings:

1) 'Memory | glop' [sound effect played back when game mode is selected] ought to have no reverb. Right now it is at default level. 2) During Largo's music in the very beginning of the game, 'Memory | Sax4' ought to be mapped to Part 1. Instead, it is 'Wind-2 | Bassoon' in ScummVM.

Ticket imported from: #1177542. Ticket imported from: bugs/1986.

Attachments (2)

MI2 Largo DOSBox Real MT-32.mp3 (164.5 KB ) - added by SF/tbcarey 19 years ago.
MI2 Largo ScummVM Real MT-32.mp3 (161.8 KB ) - added by SF/tbcarey 19 years ago.

Download all attachments as: .zip

Change History (14)

comment:1 by fingolfin, 19 years ago

Component: Engine: SCUMM
Game: Monkey Island 2
Owner: set to kingguppy

comment:2 by kingguppy, 19 years ago

1) This is a duplicate of #1088045 2) This seems to be a duplicate of tbcarey's own feature request #1177537

comment:3 by kingguppy, 19 years ago

Resolution: duplicate
Status: newclosed

comment:4 by SF/tbcarey, 19 years ago

Status: closednew

comment:5 by SF/tbcarey, 19 years ago

2) No, it's actually the incorrect instrument being played altogether, not just being written to the display improperly. If you check out instrument.cpp, you'll note that Sax4 isn't even included in the MT32 -> GM mapping. I don't know why bassoon2 would be chosen instead, but it's definitely not the correct instrument. I'll attach a sample of the real output vs. scummvm's if you like.

by SF/tbcarey, 19 years ago

comment:6 by SF/tbcarey, 19 years ago

I'm attaching two copies of Largo's music with Part 1 soloed/semi-soloed (ScummVM writes the rhythm part volume with every note, so it's impossible to turn the volume down to 0 like one can do with the original). The first is played back with the original interpreter under DOSBox, and the second with the latest ScummVM CVS. Obviously, they're both on an actual MT-32.

by SF/tbcarey, 19 years ago

comment:7 by kingguppy, 19 years ago

From my testing, both the original interpreter (used through DOSBox) and ScummVM choose the "Bassoon" patch. Where do you get "Sax4" from? There's no custom instrument by that name in the resource files that I can see, but there is a built-in "Sax 4" (in the "Wind-2" group).

I think it's using the correct instrument, but with reverb (and possibly other parameters) misconfigured.

comment:8 by SF/tbcarey, 19 years ago

You're right, it is Wind-2 | Sax 4. I don't know why I had assumed it was a custom instrument. At any rate, it consistently chooses Wind-2 | Sax 4 under both DOSBox and DOS 6.22 with both an English and Italian version of the game. The interpreter versions are 5.2.28cd (Sep 06 1996 17:32:24) and 5.2.02 (Nov 21 1991 08:35:15).

Everything else seems to work fine (no error messages or overflows), so I don't see why it would randomly choose the incorrect patch.

comment:9 by kingguppy, 19 years ago

I really can't, under any circumstances, get MI2 running under DOSBox to choose the Sax 4 program on the MT-32 - it chooses Bassoon, like ScummVM. I'm also using 5.2.28cd.

comment:10 by kingguppy, 19 years ago

Status: newclosed

comment:11 by SF/tbcarey, 19 years ago

I suppose it's a very unimportant issue anyway. Both original interpreters do select Bassoon for Largo's room music, and in other subtle queues; however, for the main music, without fail, they both choose Sax 4. There is other music that correctly chooses both Bassoon and Sax 4 for different parts, so I wonder why there's the differentiation on just that one piece. At any rate, not a huge deal.

comment:12 by kingguppy, 19 years ago

You mean the bit where Guybrush first meets Largo on the bridge, right? I really, truly get "Bassoon" assigned to part 1 consistently with the original interpreter. Let's just pretend that everything's working fine - it sounds correct with the reverb fixes I've made locally, anyway.

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