[Multiplatform] Korg DS-10 Manager

[QauNuckShin]

a tad tedious, indeed.

Yeah. But if I were to guess, note data is probably packed something like this:

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[Pattern 1] [Pattern 2] [Pattern 3] [Pattern 4] ...

Where each pattern contains all the channels, like...

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[Synth1] [Synth2] [Drum1] [Drum2] [Drum3] [Drum4]

For each channel and pattern, you have all the info for each of the 16 notes:

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[Note1] [Note2] [Note3] [Note4] [Note5] [Note6] [Note7] [Note8] [Note9] [Note10] [Note11] [Note12] [Note13] [Note14] [Note15] [Note16]

And the note data would be something like:

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[Note] [Gate] [Volume] [Pan] [Kaoss X] [Kaoss Y]

...all of which are probably in one separate byte each.

So, that would be my starting point. Then, I would take an empty saved song (but still actually saved once, so the whole data is not zeroed!), and compare with an almost empty song. Make small variations, and see what changes. Change the note played, the gate, the volume... one at a time.

With some patience, you will eventually figure out the file format. The DS-10 save file is actually not that difficult to reverse engineer, since it's pretty easy to figure out which data actually needs to be saved. Even better, the saved data has a pretty natural and obvious (with some possible variation in the details, of course) way to be stored, so it's likely that the save file is organized like that. A binary save file for an adventure game or something would present a much greater challenge - you wouldn't know exactly what stats are saved, and there is no inherent way to organize the data, no inherent order.

[ugocapeto]

thanks for taking the time once again. yep, i was thinking along the same lines.

kidquaalude told me he will be looking into it which is good since i don't have too much experience dealing with binary files (although wouldn't mind trying to do this).

[QauNuckShin]

thanks for taking the time once again. yep, i was thinking along the same lines.

kidquaalude told me he will be looking into it which is good since i don't have too much experience dealing with binary files (although wouldn't mind trying to do this).

No problem.

Well, if KidQuaalude is doing it, I might have to do it too.. Just for the competition.

[QauNuckShin]

I just realized, each Pattern piece has to contain the settings for the two synths... So it would have to fit in there somewhere.

[DS-10 Dominator]

Could you do crazy .sav hacking like putting the speed on 1000 BPM etc?

The last and only thing I ever hacked completely by myself was Prince Of Persia 1 save files with a hex editor haha, looked for for example '4' health, and replaced it by 'FF', or something like that. My rebels days...

[QauNuckShin]

No, I think the tempo is stored in just one byte. In the DS-10 interface, you can choose any integer from 10 to 250. So, provided that there is no bounds check when loading the track, you could go down to 0-9 or up to 251-255 if you liked. Hm. It would be interesting to see what happens at 0 bpm..

[Decktonic]

It would be interesting to see what happens at 0 bpm..

4'33"

[QauNuckShin]

4'33"

Well, that would be a very slow version of 4'33", then...

[KidQuaalude]

Could you do crazy .sav hacking like putting the speed on 1000 BPM etc?

The last and only thing I ever hacked completely by myself was Prince Of Persia 1 save files with a hex editor haha, looked for for example '4' health, and replaced it by 'FF', or something like that. My rebels days...

I've already looked into all of this a while back. Unfortunately all songs saved in DS-10 have a 16-byte checksum so unless we can figure out the algorythm for calculating this, we cannot modify song files. Thats why I can add midi-export easily enough, but midi-import could not happen without figuring out the checksum calculation.

[QauNuckShin]

Unfortunately all songs saved in DS-10 have a 16-byte checksum

Really? How annoying...

[ugocapeto]

man, i'd be happy as a clam with just midi export in one way or another.

[marlenedegrood]

Thanks for the mac java but I'm pretty lame and when I try to import I can't see my cart so I dragged the korg.sav file onto my desktop and it's grayed out when I try to import unless I switch to "all files" but then I get a load error, "korg.sav File is too large. Expected 12288 bytes". I know this thread is a couple of months old now but I thought I'd post and maybe get some help as to what I'm doing wrong. Thanks!

[DS-10 Dominator]

I think you should use OPEN and not IMPORT or something like that..

I think I had the same problem, check earlier on in the discussion: http://ds10forum.com/viewtopic.php?f=6&t=424

[marlenedegrood]

Thanks for the reply but I'm not seeing an "open" option .... just import or export

[DS-10 Dominator]

Drop down menu at the top: FILE > OPEN

[marlenedegrood]

OMG .... thank you!

[DS-10 Dominator]

First I tried to Import a .SAV, because I only saw the import and export buttons.

Well, that's not my fault!

So i'm not the only one who thinks this is an unintuitive gui design...

[alexusual]

Hi

Thanks for awesome tool - it works great with my DS

However, it is a little odd with my Dsi - tracksa nd patches are not showing up which are there

Is DSi supported?

Thanks Again

Alex

[DS-10 Dominator]

Hi

Thanks for awesome tool - it works great with my DS

However, it is a little odd with my Dsi - tracksa nd patches are not showing up which are there

Is DSi supported?

Thanks Again

Alex

on KORG DS-10 or plus?

[xGx]

Hurry, before StarCraft 2 is released!

Its a total time sink for me too ^-^;;;

I use windows but Im sure people are going to greatly appreciate this effort. Good stuff!