Open architecture and Kurzweil VAST comparison

[danatkorg]

But it's absolutely the same on OASYS or any other multi-layered synthesizer. The main difference is, on OASYS you have just 2 "layers" in a program, but you still can't simultaneously change the filtering of both of them.

Actually, on the OASYS, you can control filtering for all layers simultaneously in both Programs and Combinations, using the filter cutoff and resonance knobs, even when different synthesis methods are being used.

Also, you must always remember that Kurzweil's layers can have totally different structure,

It's good to remember that the OASYS is also extremely flexible in this regard; VAST is, by and large, a subset of a single OASYS EXi, the MOD-7. Even so, the common CCs and common tone adjust controls are designed to bridge these gaps whenever possible, allowing similar controls for diverse synthesis methods.

Best regards,

Dan

[Barbenzinc]

Actually, on the OASYS, you can control filtering for all layers simultaneously in both Programs and Combinations, using the filter cutoff and resonance knobs, even when different synthesis methods are being used.

Exactly the same on every kurzweil, where you can adjust any DSP by any controllers, in program or setup mode.
And it's very easy,just hold 'enter' and move the controller, the K recognize the controller you are moving...sort of MIDI learn !
Not only for cutoff and reso and other classic parameters.
For example you put a 'wrap' function anywhere in the DSP chain, go to the modulations inputs of this function, hold 'enter' and move the 7th slider for example, and then everytime you will move it, you will play with the wrap function...
It works with every DSP from the filtering, Eq or shaping functions, PWM, enveloppes, etc...and with every controllers including pedals, ribbon, wheels, sliders, buttons or any hardware controllers like BCR2000, control freak etc...
You can even fire notes with those controllers.
I remember having fun by assigning a Kick to a pedal...

It's very easy to build your synth and control it with everything.

[danatkorg]

Actually, on the OASYS, you can control filtering for all layers simultaneously in both Programs and Combinations, using the filter cutoff and resonance knobs, even when different synthesis methods are being used.

Exactly the same on every kurzweil, where you can adjust any DSP by any controllers, in program or setup mode.

This seems to disagree with what Megakazbek wrote:

Kurzweil Operating Systems are utterly cumbersome. For example, to edit the filtering on a piano, you have to change multiple settings, just for one layer. If there are several layers, you have to do all of that, separately, for each one.

But it's absolutely the same on OASYS or any other multi-layered synthesizer. The main difference is, on OASYS you have just 2 "layers" in a program, but you still can't simultaneously change the filtering of both of them.
Also, you must always remember that Kurzweil's layers can have totally different structure, so it's absolutely impossible to do "synchronised" layer editing because, for example, one layer could have a 2-pole low-pass filter, another layer could have four one-pole filters without resonance, and a third layer may have no filter at all. How can you simultaneously edit filtering on layers with such different parameters?

Unless you're just talking about modulation of parameters from controllers, which is a standard feature of all modern synths.

On the OASYS, in addition to the usual assignment of mod source and amount for given destinations, there are a set of controllers (CC70-79) which are implemented the same way across all synths, as much as possible. These include basic characteristics such as filter cutoff and resonance, attack and release, envelope intensity, etc. Front-panel knobs are assigned to several of these CCs by default, and can be assigned to others as desired. This allows the sort of cross-layer control which Megakazbek describes as "absolutely impossible."

Perhaps I'm misunderstanding something?

Best regards,

Dan

[Barbenzinc]

Megakazbek is right when he said that because of the VAST structure that allows different algorithm on each layer, when the DSP chain and DSP order didn't match, it's impossible and it's no use to link them while editing the prog...
(And you can't link them, even when they have the same structure, which may be a nice feature on future OS upgrades)

Yes, i was more talking about live controllers for live playing which can be assigned to anything...
You talked about programs and combinations, so i thought you were not talking about program editing, which is two different things.

Maybe on the Oasys, when you are editing a prog, if you turn the cutoff button, you adjust the cutoff on every layers,(which would be strange if the 2 Exi's have different filter type, filter slope etc...) but can you adjust an enveloppe on every layers at once ?
And if they're linked, how do you make different settings then ?

If you want the same settings with a K, just make a copy of the layer.
If you want to change things after, make them only on the first, delete the second and make another copy of the first...

Well, 2 differents synths, 2 differents ways of programming...