Missing intruments with MT-32 in some games

[higgs]

I've noticed missing instruments on my MT-32 in some songs/games. One noticeable example is on the first level theme of Akumajou Dracula (e.g. the part with the orchestral hits). I'm using the Etarikashikoshi midi board. I confirmed this happens at both 10MHz and 16MHz and tried reseting the MT-32 to default settings with no luck. Any idea what could be causing this?

[higgs]

In case it helps any; I originally noticed this running the HD image via blueSCSI but have also verified that in happens when booting from original floppies as well. I also have no issues when using an SC-55.

[z964]

Your description makes me wonder if it might be your MT-32 that has a problem.  I know there are at least a couple revisions of MT-32 which do not behave identically.

Personally, I use a CM-64 with my X68s, and have never experienced missing instruments with it.

[higgs]

That seems likely to me, but I don't have a good idea what could be wrong with the MT-32. I did check the firmware version and saw it was at the latest revision for the new version MT-32 (2.07), but I haven't found any info on whether any x68000 games require a specific firmware version to run properly.

[1uprestorations]

Any luck with solving this issue? I'm finding the exact same problem using my XVI (10 or 16mhz) and my etarikashikoshi. No issues with the SC-55, but some instruments are missing with the mt32.

[aapuzzo]

I have been using an MT-100 without any issues with is basically a later revision MT-32 with extra features.  I have to ask but you are using it with a game that has MT-32 support in the MT-32 mode?  Also you are you mixing the audio with the standard headphone FM output?  Midi doesn't always give you all sounds in games.  You need to use a mixing board to combine both audio outputs.  Sorry if this sounds like basic information but I have to ask.  My next move would be to try it in well known dos games.