Jupiter-X VA engine

Chrisk-K wrote:

Does anyone know that the new Fantom's VA engine is the same as the Jupiter-X's?

While the specs say that both use the Zen-Core engine, the VA implementations do not seem identical, since the Jupiter X can emulate specific old Roland synths (i.e. Jupiter 8, Juno-106, SH-101) and at least so far, there are no such emulations described for the Fantom.

Some interesting tidbits from the Japanese Roland site:

[JUPITER-X] What is the maximum polyphony?
It depends on the model type and combination.
As an example, if JUPITER-8 is assigned to all four parts, the maximum polyphony is 32 notes (8 voices per part).
[Up to 256 when not using the VA aspects]

[JUPITER-X] What types of "MODEL" are available?
Six types of JUPITER-8, JUNO-106, JX-8P, SH-101, XV-5080, and RD (Piano) are installed.

[JUPITER-X] What is the difference between VINTAGE FILTER [R], [M], and [S]?
[R]: Roland's original filter, which is selected by default.
[M] [S]: Models a filter for a vintage synthesizer made by another company.
When vintage type models (JP, JUNO, JX, SH) are selected, the filter type can be changed with the VINTAGE FILTER [R] [M] [S] buttons.

Roland Jupiter X FAQ (translated to English)

Since the polyphony changes so drastically when emulating certain synths, that seems to indicate the modelling is quite powerful (processor heavy), more akin to ACB than to the Jupiter-80 VA.

I'm guessing the M is a Moog filter and the S is a Sequential (Prophet) filter, like on the Jupiter-80. Let's hope these filters are higher quality.

Considering that Jupiter X and the new Fantom share the same ZEN-Core engine, it is supposed that the Fantom should have the same Jupiter ( X and Xm) sounds, right? why not?

Another thing, If I understand correctly the new Fantom has an Analog filter while the Jupiter doesn't have it

Loopman wrote:

Considering that Jupiter X and the new Fantom share the same ZEN-Core engine, it is supposed that the Fantom should have the same Jupiter ( X and Xm) sounds, right? why not?

Fantom does not have the ABM models (Jupiter 8, Juno 106, JX-8P, SH-101). Whether the Fantom is capable of them, and if so, whether Roland intends to provide those emulations for the Fantom platform, are probably questions which only Roland knows the answer to.

Loopman wrote:

Considering that Jupiter X and the new Fantom share the same ZEN-Core engine, it is supposed that the Fantom should have the same Jupiter ( X and Xm) sounds, right? why not?

Another thing, If I understand correctly the new Fantom has an Analog filter while the Jupiter doesn't have it

The Fantoms do not have an analog filter, and don’t include the modeled synths. My guess is they require DSP chips that aren’t present in the Fantoms.

The Jupiter-X/Xm have a DSP filter that emulates three types of analog filters.

According to specs from the Roland website, the Fantom synths do have an analog filter...

https://www.roland.com/us/products/fantom_series/specs/

It's in its own section under Sound Generator

Analog Filter
STEREO
Type: LPF1/LPF2/LPF3/HPF/BPF/Bypass
Drive
Amp

chesterlampwick wrote:

According to specs from the Roland website, the Fantom synths do have an analog filter...

Huh. I stand corrected. Looks like it’s actually analog too. Very unusual to see a single analog component in an otherwise digital synth, but I guess if I was going to pick one it would be the filter.

Yeah, on closer inspection there’s even a dedicated button that’s clearly labeled Analog Filter.

Now these make even less sense to me. Why not also include all the ABM analog modeling synths?

What is ABM and what does it stand for?

ABM will come in Fantom later...; and yes, analog filter is on Fantom, I tried it today

Synthtron wrote:

What is ABM and what does it stand for?

Analog Behavior Modeling — the name Roland chose for the new analog models in the Jupiter-X/Xm. Details in this interview with Roland’s CEO about the Jupiter-X.

Stormchild wrote:

Synthtron wrote:

What is ABM and what does it stand for?

Analog Behavior Modeling — the name Roland chose for the new analog models in the Jupiter-X/Xm. Details in this interview with Roland’s CEO about the Jupiter-X.

Thanks.

I ended up getting a Jupiter-Xm and figured out what it means.
Sadly, I was not impressed with the Analog models on it. They are not like the ACB on my Boutiques and System 8 which sound and behave more like the original synths.
I sent that Jupiter-Xm back as fast as I could. Too bad, I had really high hopes. Shame on me. LOL!

The fantoms have two zen-core CPUs currently they are only using one with the other designed for expansions so possibly other modelled synths.

skinmechanic wrote:

The fantoms have two zen-core CPUs currently they are only using one with the other designed for expansions so possibly other modelled synths.

• There is no such thing as a "Zen-Core" CPU.



• It's notable that the System-8 has THREE BMC CPUs (although not necessarily the same BMC model as contained in the Fantom) There are FOUR BMC CPUs in the Fantom. ONE of those is dedicated to the V-Piano model.The remaining THREE are used for everything else.



• It's best to think of "Zen-Core" as a platform hosted on BMC, not a particular kind of sound-engine. The Zen-Core architecture is capable of hosting many different software-based synth engines.



• The PCM Engine is capable of 256-partial polyphony. My understanding is that this is a software-based limitation, and could be increased, depending upon what other models Roland decides to add.



• The upper limit of the VA engine's polyphony has not been fully tested. It's "a lot".



• There is significant System-memory and CPU power which is not fully used as of rev. 1.11 of the OS. I find that encouraging.

zombietactics wrote:

skinmechanic wrote:

[*]It's notable that the System-8 has THREE BCM CPUs (although not necessarily the same BCM model as contained in the Fantom) There are FOUR BCM CPUs in the Fantom. ONE of those is dedicated to the V-Piano model.The remaining THREE are used for everything else.

BMC (behavior modeling core).