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VZ-CZ-DX Transfer

VZ-CZ-DX Transfer

2004-06-30 by matucana

Hi Summa,

could you please check your tutorial in our files section? The link seems
broken somehow, because all other files work fine...

Hellmuth

Re: [CZsynth] VZ-CZ-DX Transfer

2004-06-30 by Summa

No problem, the link to the "VZ Tutorial.txt" works fine here...

On 30 Jun 2004 at 21:20, matucana wrote:

> Hi Summa,
> 
> could you please check your tutorial in our files section? The link seems
> broken somehow, because all other files work fine...
> 
> Hellmuth
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 


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Re: [CZsynth] VZ-CZ-DX Transfer

2004-06-30 by Summa

On 30 Jun 2004 at 21:20, matucana wrote:

> Hi Summa,
> 
> could you please check your tutorial in our files section? The link seems
> broken somehow, because all other files work fine...
> 
> Hellmuth



In case you still have problems reading it, I know simply pasted the text at the 
end of this mail...

------------------

The hitchikers guide trough the VZ-1/10m/8m...   

...how to program that slighlty different FM Synth...

Version 0.2 (far from ready)  

Please excuse my english...

Send comments to flotorian@... or flotorian@...

Prologue:

I bought this synth used and without a manual, so I hope this document is not too 
boring. But I think my findings are probably interesting vor other VZ user too... 


1. The Modules...

First of all there are 8 Oscillators called modules with 8 Waveforms (Sine, Saw1 -
 5 and 2x Noise). Second, those moduls are always grouped as couples and the 
outputs of those couples are always mixed together. However you connect them, if 
it's Phase (Phase Modulation or digital FM), Ringmodulation or Mixed, it will be 
mixed togther to a single output that can be used to phase modulate the next 
output.

2. The Frequency

If you set the connection between the two or more modules of a couple to phase, 
only the frequency of the first modul is defining the frequency of the couple and 
the frequency ration between Carrier and Modulator is always 1:2 and the 
modulation minimum is 50%, even when you mute the Modulator. Always the last even 
module plays the sound. If you have two with phase connected couples (for 
instance 1/2 is modulating 4 that is controlled and modulated by 3) the uneven 
modules are defining the frequency of the couples. So if you set Oscillator 1 one 
octave above Oscillator 3 you have the frequency ratio 2:1 between 2 and 4, that 
way you can archive Yamaha "digital" FM - Synth like sounds with up to 4 Osc. in 
a row.

Examples for FM algorithms with the VZ Synths:

1 3 5 7
| | | |
2-4-6-8- Output ... - = ext. Phase and |= Phase 

when 1,3,5,7 are muted and the waveforms are set to sine you'll get the following 
digital FM algorithm...

2
|
4
|
6
|
8

The frequency of 1,3,5,7 define the frequency of 8,6,4,2...



Also possible is following digital FM algorithm

1 2 5 6 
 \|  \| 
  4   8

With the following algorithm

1 3 5 7
  |   |
2-4-6-8- Output ...


3 is defining the frequency of 4 and 6 is defining the frequency of 8. The 
Modules 3 and 7 have to be muted...


3. How to...

- create a usable square wave... 

For instance with following setting... 

1 waveform = Sine, envelope depth about 50... 
| 
2 wavefrom = Saw 5, envelope depth about 50

- do a "filtersweep" (well it's an digital FM sweep) with that square wave

1 4
| |
2-3- Output

1 and 2 are set like in the example above, 4 is muted, 1 and 4 are both set to 
the same frequency and the Envelope 2 is acting filter (or DCW) envelope like.

- do the same thing with a saw... 

Well, take the example above set the connection between 1 and 2 to mix and mute 
oscillator 2.

Also possible is to mute Modul 1 and set it Saw 5 and Modul 2 to Sine...

Even so possible is to mute Modul 2, set it to sine, set Modul 1 to mix and Saw 
5. That way the envelope of modul 1 acts as filter envelope...


4. How to translate typical FM freuquency relations to the VZ-1

DX FM -> Coarse

1 =  0 
2 = 12 
3 = 19 
4 = 24
5 = 28
6 = 30 

0.5    = -12
0.25   = -19
0.125  = -24
0.065  = -28
0.0325 = -30
   

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