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sysex and soundfonts

Posted: Sun May 20, 2012 6:15 pm
by pike
Hi

I'm considering to buy a SV-1. out of curiousity:

- is it possible to load/unload sounds using a sysex midi dump ?

- are the soundpacks comprised of (sf2) soundfonts ? in other words, would you technically be able to load completely different sounds into the sv-1 yourself ?

curious,
*-pike

Re: sysex and soundfonts

Posted: Sun May 20, 2012 9:52 pm
by i_am_binky
pike wrote: - is it possible to load/unload sounds using a sysex midi dump?
no... at least i don't think so.
pike wrote: - are the soundpacks comprised of (sf2) soundfonts?
and also no, what you hear is what you get. there are 3 soundpacks and two have the same set of Favorites.

Posted: Mon May 21, 2012 7:59 pm
by pike
hm .. that does temper my enthousiasm a bit ..

Re: sysex and soundfonts

Posted: Sat May 26, 2012 5:25 pm
by Rodney
pike wrote:Hi

I'm considering to buy a SV-1. out of curiousity:

- is it possible to load/unload sounds using a sysex midi dump ?

- are the soundpacks comprised of (sf2) soundfonts ? in other words, would you technically be able to load completely different sounds into the sv-1 yourself ?

curious,
*-pike
The sounds are in hardware, not software. The new sound packs are sets of variations layered on top of the sounds that are already in the hardware, though the sound packs do reveal a couple of sounds (acoustic bass, muted clav) that weren't accessible in the first release. But it's not a synth. It's a stage piano. If you like the sounds (and some are very good), it's one of the best. If you don't like the sounds, you can tweak them but not replace them, so best go with a synth.

Re: sysex and soundfonts

Posted: Tue May 29, 2012 12:22 pm
by pike
Rodney wrote:The sounds are in hardware, not software.
Really ? What does that mean ? Are they .. analogue ? Or are they in ROM ?
Of special note, for the first time there are split sounds, including left hand basses – a nice surprise hidden in the ROM; until now!
Hear hear. ROM it is. Could it be flashed, theoretically ?

I do like the sounds. I bought it, already. I searched online, but can't find much technical info about how it really works. Just curious. Does anyone have more info ?

*-pike

Posted: Tue Jun 19, 2012 11:28 pm
by pike
To answer myself a bit: yes, the sounds, and by the looks of it most of the logic of the sounds, like layering and splitting, is in the machine. The SV1 editor is a java app, which can easily be reverse engineered, but that is illegal. From the looks of it, not much advanced sound design logic is in that java; I think it is all in sysex packages sent straight to the machine. The soundpacks, that contain such messages, are less than 16k for 36 or 44 sounds. Really small.

The machine can play up to two sounds simultaneously; this was originally only used for the RX effects, but the newer sounds sometimes contain either 1 split or 2 layers. Those sounds dont have RX effects, so its probably abused for the splitting/layering. 'The other layer' seems to be the light that lits up when that sound is selected (like 'piano/3'), allthough thats just a choice Korg made ofcourse. You can change that. From what I hear, the old RX layer isn't affected by the pre- or post- effects either (which is funny on f.e. a split sound). Exactly how KORG does all this, is quite literally in a black (or red) box.

Knowing all that, I think it cant be that hard to create a piece of hardware, like a USB dongle/box, that contains all currently existing 144 sounds and some of your own favorites, that can send each of those to the machine in a few clicks (assuming the SV1 usb port is powered). Most of the software to do that has already been written. You just need to wrap it in a box. I would buy one.

To create an editor that allows us to manage splits and layers could be harder. It's on the level of sound design, and there is no interface for that yet - or we dont have it anyway. But it can't be impossible.

$2c,
*-pike

Posted: Wed Jun 20, 2012 6:55 pm
by pike
pike wrote:Knowing all that, I think it cant be that hard to create a piece of hardware, like a USB dongle/box, that contains all currently existing 144 sounds and some of your own favorites, that can send each of those to the machine in a few clicks
For us.

For Korg, its perhaps just as easy to rewrite the os so that a favorite button does not link to one sound, but to a soundpack. that way we could have 8 soundpacks on board :-) storing a sound would store it not to the favorite button, but to the selected sound in that buttons soundpack.

Memory is not an issue. These sounds are ~2k each.

*-pike

Posted: Wed Jun 20, 2012 6:58 pm
by Rodney
pike wrote:
pike wrote:Knowing all that, I think it cant be that hard to create a piece of hardware, like a USB dongle/box, that contains all currently existing 144 sounds and some of your own favorites, that can send each of those to the machine in a few clicks
For us.

For Korg, its perhaps just as easy to rewrite the os so that a favorite button does not link to one sound, but to a soundpack. that way we could have 8 soundpacks on board :-) storing a sound would store it not to the favorite button, but to the selected sound in that buttons soundpack.

Memory is not an issue. These sounds are ~2k each.

*-pike
The problem with that, of course, is that the Favorite Buttons would no longer operate as Favorite Buttons. They're one of the really nice things about this keyboard, a quick way to call up your favorite sounds, and as easy to store sounds in as an old-fashioned car radio. No thanks, leave it alone please.

Posted: Wed Jun 20, 2012 9:15 pm
by ShaunKorg
"The SV1 editor is a java app, which can easily be reverse engineered, but that is illegal"

If someone put a hack on the internet maybe Korg would pay attention to it again.

Posted: Sun Jun 24, 2012 10:13 pm
by pike
pike wrote: For Korg, its perhaps just as easy to rewrite the os so that a favorite button does not link to one sound, but to a soundpack. that way we could have 8 soundpacks on board :-) storing a sound would store it not to the favorite button, but to the selected sound in that buttons soundpack.

Memory is not an issue. These sounds are ~2k each.

*-pike
The problem with that, of course, is that the Favorite Buttons would no longer operate as Favorite Buttons. They're one of the really nice things about this keyboard, a quick way to call up your favorite sounds, and as easy to store sounds in as an old-fashioned car radio. No thanks, leave it alone please.
No, storing a favorite might save not store it to the favorite button, but to the selected sound in the selected soundpack. it would give you 36*8 favorites. 76 of which can ofcourse be soundpack1 and soundpack2.

Well, I can dream, cant I.

Posted: Sun Jun 24, 2012 10:17 pm
by pike
ShaunKorg wrote: If someone put a hack on the internet maybe Korg would pay attention to it again.
Well, I didn't really do it ofcourse. I didnt really use - cough - *jad* on the jar files, did I. But somehow I'm 100% sure it decompiles really nicely :D

But as I said nothing of the most wanted logic is in there. I, eh, think.

*-pike