[Scummvm-tracker] [ScummVM :: Bugs] #15624: sorry delete (mistake) (was: AGI MIDI Implementation - extra features suggestion (MT-32 mainly, but GM too))
ScummVM :: Bugs
trac at scummvm.org
Fri Dec 27 06:00:32 UTC 2024
#15624: sorry delete (mistake)
-------------------------------------------------+-------------------------
Reporter: MusicallyInspired | Owner: (none)
Type: feature request | Status: new
Priority: normal | Component: Engine:
| AGI
Version: | Resolution:
Keywords: midi, mt32, sysex, message, pc, | Game:
program, change, channel, noise, percussion |
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Changes (by MusicallyInspired):
* summary:
AGI MIDI Implementation - extra features suggestion (MT-32 mainly, but
GM too)
=> sorry delete (mistake)
Old description:
> I had a thought for some optional extra settings for the MT-32 audio
> implementation for AGI games. Is ScummVM's implementation based on the
> original DOS tool AGIMIDI.EXE by Anders M Olsson? The extra features it
> offered might be nice to add to ScummVM's implementation. Also had an
> idea for a new feature. These settings would probably be best located in
> an AGI game's "Game" tab menu in "Game Options," but they'd only be used
> if a MIDI device was selected as the music device. I'm not sure it would
> be beneficial to add these settings to the MIDI or MT-32 menu tabs when
> it only affects AGI games.
>
> **1-Custom MIDI Channels**
> Instead of just defaulting to channels 2, 3, and 4 (for the MT-32) and
> channel 10 for noise, offer the option to set each tone channel and the
> noise channel to a custom MIDI channel (1-16).
>
> **2-Custom Note Keys for Noise Channel**
> Offer the ability to set a specific MIDI channel note for each of the 3
> noise channel frequency pitches used on the Tandy (2330Hz, 1165Hz, and
> 583Hz). AGIMIDI defaulted these to notes 51, 46, and 49 respectively
> (which I believe are normally "crash cymbal," "kick," and "snare" IIRC).
>
> **3-Program Changes**
> Allow the user to set the Program Change value (0-127) for each of the 3
> tone channels for custom instrument patches to be used. You could have a
> dropdown menu for each one with either GM or MT-32 mapped instrument
> names, but I think just having 3 text boxes to type in the digits
> yourself would be easier because of my next suggestion...
>
> **4-Optional Custom SysEx**
> I made an MT-32 sysex bank file specifically for AGIMIDI that replaces
> AcouPiano1 on the MT-32 with a custom timbre that sounds as close to the
> Tandy square wave as I could get it. The results were quite convincing. I
> also made 3 custom timbres for the 3 noise channel frequency pitches
> which were made from the "Breath Noise" PCM sample on the MT-32 (which is
> basically white noise). They were all pitched differently to try to mimic
> the Tandy noise pitches. AGIMIDI didn't support custom sysex banks of
> course so you'd have to dump the SYX file manually to your MT-32 (or
> MUNT) before launching an AGIMIDI-patched game. It'd be nice for ScummVM
> to offer this built-in and have the user select a custom SYX bank file
> that they'd like to dump to the MIDI device before the game boots up
> (similar to how SCI games already do this with built-in sysex banks). But
> it doesn't have to be MT-32 only. Many MIDI devices can of course accept
> sysex bank dumps that can change instrument patches including the SC-55.
> So it can work great for those as well.
>
> **5-MIDI Init String**
> This is something that AGIMIDI ''did'' do. It offered a short text field
> to input a custom byte string for MIDI messages. It defaulted to "C1 00
> C2 00 C3 00" which sets channels 2, 3, and 4's Program Change to 0
> (acoustic piano) but you could alter that or even add to it with other
> MIDI messages or even a short sysex message if you wanted to. Problem was
> it would only allow a string the length of the printable screen area
> (including spaces which it added itself) so custom messages had to be
> short. It'd be nice to offer another text field area where you could add
> your own byte string which could be much longer. It'd make more sense to
> load a SYX dump file in the case of sysex messages, but standard MIDI
> messages (like CC controller changes, or something else) are handy to
> have control over as well. This gets pretty nerdy, though, and would of
> course confuse (or worse, scare) general players. Perhaps the text field
> itself would be short and only display a preview of the full string. Next
> to the field there could be a button that opens a popup window with a
> larger text field that you could type into and review everything if you
> wanted.
>
> Here's a link a video capture on my Google Drive of myself running
> AGIMIDI in DOSBox and using my custom Tandy timbre bank with MUNT to make
> it sound like a Tandy 3-voice (the noise channel timbres need some work):
> https://drive.google.com/file/d/1-ZJk5TAI_rVoUGvnqx-bYCH-
> d92vzHG_/view?usp=sharing
New description:
sorry I posted this three times somehow for some reason
--
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Ticket URL: <https://bugs.scummvm.org/ticket/15624#comment:1>
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