SergeModular

Thanks for the education. Grant should update his Wiard manuals. There's
no mention of the frequency division feature of the Envelator, though one
should guess that considering it's similarity to a Universal Slope
Generator.

John Loffink
microtonal@...

> : Wiard:
> :
> : The Omni filter can work as a phaser (allpass mode). It has
> 1v/o-calibrated
> : and attenuatable exponential inputs, att. linear input (FM), either
> positive
> : or negative feedback, has outputs shifted by 360 degrees (two poles) and
> by
> : 720 degrees (four poles) and can be crossfaded into highpass filtering
> mode.
> :
> : Frequency shifting can be realized to a limited extent if you have two
> Dual
> : Envelators, four (sic) Wavecities and two Mixolators: shape both
> quadrature
> : related Envelator triangle outputs to sinewaves, ringmodulate the
> respective
> : sine and cosine signals and add/ subtract for single sideband outputs.
> : However the Envelators are controlled linearly for most of the audio
> range,
> : the sinewaves won't be perfect and the Mixolator ringmod function is not
> the
> : quietest around.
>
> This is incorrect. Only 2 Wavecities are required: for a near sinusoidial

(8

> bit approximation) carrier. For sub-audio frequency shifts however

(through

> zero "barberpole" phasing effect), the variable triangular Envelator

outputs

> can be used withoput sineshaping. So all required for a limited range of
> interesting frequency shift sounds (for example: FM the Envelator which
> plays the modulator) is a double Wiard system.
>
>
> End of addendum
>
> SK
>
> : Variable slope filtering (between 12dB/o and 24dB/o) can be done either
> with
> : a crossfade between the Omni two pole and four pole outputs (as

mentioned

> in
> : the phaser reply), or with a crossfade of the two Dual Borg Filter

outputs

> : if they are patched in series.
> :
> : Each Envelator section can be used as CV divider. During the attack

phase

> : they do not retrigger so raising attack when the trigger input is a wave
> : below 500 Hz will make the Env. output any whole number division of the
> : input in length until the Env. maximum slope time is reached. (I don't
> know
> : what the output will be if the trigger is above this frequency.) There

is

> : not only a pulse output as with most other dividers (e.g. Serge) but

also

> : the slope output which is shape-stretched as the attack setting

approaches

> : the next whole number.
> :
> :
> : You see, the Wiard is far more powerful than obvious at second or even
> third
> : sight. Also, one often is somewhat deceived by the "6-module-system"
> : concept - owning a "double system" will multiply the capability by a
> : trillion (as seen from the frequency shift setup for example). Grant has
> : realized this by now and tries to lay off the system approach.
> :
> :
> : Sebastian Kuehnl
> :