MOD-7 Issue

[Alexx_best]

Hello, friends! Just a little question - I have some good FM Electric Pianos, Organs and so on, they are loaded into my Yamaha DX7IID. I have a Kronos X too. Is it possible to transfer some of the sounds (let’s say, whole Bank A, 1-32) from DX7IID to Kronos?? Kronos is capable to read DX7 Mark I sounds only (as I know, maybe I’m wrong) but... is this any way to convert DX7II Sysex to the first generation DX7 format?? I’ve tried so many solutions - these patches were MIDI transferred from DX7IID into iMac as a Sysex, I wrote this Sysex on USB flash, then I’ve tried to load directly from this USB flash into Kronos - no result, this file is unrecognizable (slighty bigger than standard 4kb Sysex of the first brown DX7). I’ve tried to convert with Dexed, FM8 - no positive result again, these applications have no Sysex export menu, import only. It was an idea - OK, let’s try to program Kronos MOD-7 manually, copy every parameter from DX7IID, every sound that I like...another fail, because the DX7’s parameters and MOD-7 parameters are very different for the same voice - other ratio, other detune, other operator’s levels and so on. That’s the story...maybe You know how to do it, if possible? Sorry for my bad English, it’s not my native language.

[Rigel]

Hi,

Kronos expects the syx files to be in DX7 mark1 format. Later DX models put other proprietary midi data, which cannot be executed by Kronos itself, followed by the actual DX patch bank information at the end of the file. I belive that if you can manually edit the syx file and delete the unusable portion of the file and isolate the real bank data, it will work. These are explained on page 341 of Kronos Parameter Guide. I haven't tried this editing method and have no idea about the details, but I'd like to hear if you are succesful.

[Alexx_best]

Kronos expects the syx files to be in DX7 mark1 format.

Thanx a lot, I’ve tried the same way just before reading you post:) By the way, every syx from DX7IID, DX7IIFD and so on You can transform in DX7 Mark 1 format quite easy - just erase first 2 blocks of unnecesary data (these two are special for IID, IIFD only, begins with F0 and ends with F9). Real DX7 Mark I syx (what we actually need for the Kronos) is the last, third block, it begins with F0 43 00 09 Code and ends with F9 too. I have used a small App for Mac named Hexed for this work, it’s free and has a routine to find specific codes, just write in “search” area what You need.

[Derek Cook]

Hi,

I just want query your statement about SYSEX blocks ending with F9. It should be F7

I do a lot with Yamaha SYSEX and looking at them in hex editors (and I used to have a DX7II, so if you would like to share an example file, I can take a look for you.

I also used to provide a tool called dx.factory so I can see if it likes and files and if not then why not.

[Alexx_best]

Hi,

I just want query your statement about SYSEX blocks ending with F9. It should be F7

Oh, yes, You are right, it needs to be F7, of course.