Casio CZ/ VZ/ FZ - Pro Series

On 29 Jun 2004 at 16:45, steve_the_composer wrote:

> (1) With the VZ envelope architecture, it should be possible to 
> manually design Mellotron-style patches.

Not sure what the envelope has to do with this, even so I prefere using multi 
stage envelopes...

> (2) About 10 years ago, I started to explore a software design to 
> convert CZ patches to VZ architecture, but
> --(a) early on I ran into problems with not being able to modify 
> white/pink noise on the VZ, and
> --(b) it was more fruitful to recreate/approximate desired patches by 
> hand (and more fun to create totally new sounds).

Understabdable :-)

> (3) If someone really wants to tackle automation of CZ patches for 
> the VZ:
> --(a) I would think the first step is to design specifc VZ waveform > algorithms that approximate the different CZ waveforms.

Not that complicated except the duo ones, I did this for the FM7 and VAZ Modular 
(not needed anymore since the VAZ now has hardcoded CZ-DCOs), should be easy to 
convert to the VZ as well.
Well, that would be the knowledge I could share for this project, other than that 
I'm pretty busy... 

> --(b) The next step could be to standardize all the other VZ 
> parameters that have no counterpart on the CZ.

Well, the major problem will be CZ parameters that don't have Counterparts on the 
VZ, like the two pitch envelopes. The VZ is imho simply closer to the DX than to 
the CZ...

> --(c) Then, one might make correlation tables of what VZ values mimic 
> CZ values for parameters where there is a counterpart.
> --(d) Timbre envelope might be a problem since on the VZ you have to 
> do that using the line architecture and the DCAs.

Well, another problem will be that the VZ base sound is completely different...

> I think it would be an excellent project given the renewed interest 
> in the CZ and VZ sound.  Of course another good project might be to 
> develop a conversion process for other ROMpler-based synth engines.
> 
> Finally, if anyone has figured out a way to simulate the filtering of 
> noise on the VZ so you can do what the CZ architecture can, please 
> let me know.

I think the noise is the least problem, I hardly did patches using that parameter 
except a few drum sounds...

...Summa


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