I wanted to ask, will this reverse engineering project lead to a possible loader for AdPlug? I'd like to beable to listen to the Dune files endlessly. That's what I'm hoping for! I don't know how to program so right now, we're relying on others to come up with code for a loader for AdPlug or even a …

Awesome stuff! I'm currently listening to MegaRace's music right now and it sounds perfect! At first, the song "Maeva" was playing weird but it turns out I had the oplmode set to "opl3gold" (which I turned on earlier for my reverse engineer work on Dune and MegaRace's music format ). Everything went …

Believe it or not, I discovered that one of my previous instrument values that I had documented, had actually turned out to be another macro! For the longest time, I thought offset 0x1B was a byte that was ignored, but it actually is used in Dune and KGB! It's scales the feedback based off of MIDI …

Another unknown value for HERAD has been discovered! Remember that I stated in my previous post that Aftertouch only affects the modulator output level? That was incorrect and I was actually right the first time; the last byte does control the carrier output level via MIDI aftertouch events! The …

Good news, bad news. The bad news is that I thought I figured out two unknown values last time I posted, but I later realized that I was incorrect and I only figured out one of them. As it turns out, the Aftertouch in HERAD affects the modulator output level only and does not affect carrier in any …

Made some great progress today. I finally figured out two unknown values in the instrument chunk! The very last two bytes in each instrument definition seem to scale the output level for the modulator and carrier respectively whenever they're affected by aftertouch MIDI events. Aftertouch really …

Can you convert the music into general midi? Not general MIDI, but you can convert HERAD into MIDI, however you will lose the OPL instruments, so percussion instruments and sound effects are going to be played as regular melodic MIDI instruments. Here's an example MIDI file that I made from …

Hi, I believe I know enough about OPL chips and assembly to help, so do you have anything specific I should take a look at? The last three bytes of every instrument are currently unknown. Dune uses these bytes but in MegaRace they're always the same for every instrument. Whenever I modify them, …

Hey guys, I'm currently working on reverse engineering the "HERAD" Ad Lib music format made by Cryo Interactive. This format was used in three DOS games: Dune, KGB, and MegaRace. Binarymaster at VGMFP's wiki started the initial reverse engineering work and I've taken up the bulk of the work for the …