Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

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pugix
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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by pugix » Wed Jun 24, 2020 4:30 pm

From the Contour 1 manual: "Both the rising and falling slopes can be individually bent, from concave through linear to convex. While doing so, the deviation in slope time, and thus oscillation frequency, is kept to a minimum. Since the bend parameters are separately voltage controllable, boundless modulation possibilities present themselves." Maths is much more limited in shape control.
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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by daphnid » Wed Jun 24, 2020 4:53 pm

Yeah it's basically like they took a channel out of Maths and completely maxed out the feature set.

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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by synonymist » Wed Jun 24, 2020 10:07 pm

pugix wrote:
Wed Jun 24, 2020 4:30 pm
From the Contour 1 manual: "Both the rising and falling slopes can be individually bent, from concave through linear to convex. While doing so, the deviation in slope time, and thus oscillation frequency, is kept to a minimum. Since the bend parameters are separately voltage controllable, boundless modulation possibilities present themselves." Maths is much more limited in shape control.
Which reminds me: I keep thinking that the Doepfer A-171-2 splits the difference between Maths and CONTOUR 1 in this regard. Do I have that wrong?

https://www.modulargrid.net/e/doepfer-a-171-2

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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by pugix » Thu Jun 25, 2020 8:59 am

synonymist wrote:
Wed Jun 24, 2020 10:07 pm

Which reminds me: I keep thinking that the Doepfer A-171-2 splits the difference between Maths and CONTOUR 1 in this regard. Do I have that wrong?

https://www.modulargrid.net/e/doepfer-a-171-2
If you follow the links to Doepfer's site, you see there that the A-171-2 is "mostly a licensed copy of Ken Stones VCS which is in turn based on the Serge VCS." So it's open source. The VCS has separate switches for the rise and fall shapes.

https://www.elby-designs.com/webtek/cgs ... 5_vcs.html

Also see this link.

http://navsmodularlab.blogspot.com/2015 ... ation.html
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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by synonymist » Thu Jun 25, 2020 9:10 am

pugix wrote:
Thu Jun 25, 2020 8:59 am
synonymist wrote:
Wed Jun 24, 2020 10:07 pm

Which reminds me: I keep thinking that the Doepfer A-171-2 splits the difference between Maths and CONTOUR 1 in this regard. Do I have that wrong?

https://www.modulargrid.net/e/doepfer-a-171-2
If you follow the links to Doepfer's site, you see there that the A-171-2 is "mostly a licensed copy of Ken Stones VCS which is in turn based on the Serge VCS." So it's open source. The VCS has separate switches for the rise and fall shapes.

https://www.elby-designs.com/webtek/cgs ... 5_vcs.html

Also see this link.

http://navsmodularlab.blogspot.com/2015 ... ation.html
Thank you, Richard. I had a general awareness of the A-171-2 origins. What I meant was that its "exp. CV" inputs seemed to me halfway between the functionality of CONTOUR 1's "bend" CV inputs and Maths's "Vari-Response Panel Control".

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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by pugix » Thu Jun 25, 2020 1:52 pm

I see the confusion. The Doepfer A-171-2 Exp CV input is a frequency CV, equivalent to what Maths calls, unfortunately, "Both CV". Here's a comparison of the frequency (rate) CV inputs on the three modules.

VCS has four rate CV inputs: Rise, Fall, Both, Exponential (Both simply mixes with the separate Rise and Fall CV inputs and is affected by the pots.)
A-171-2 has three: Rise, Fall, Exponential (with the Rise CV normalled to the Fall input for a kind of 'both')
Maths has three: Rise, Fall, Exponential (called 'Both' in the manual)

In all cases, the Exponential CV input is fixed (not affected by pots) at roughly 1V/octave.

Contour 1 takes quite a different approach. It has only Rise and Fall CV inputs for rate. But it adds a mode switch (Full/Audio), which apparently changes the behavior of the CV inputs, so that in audio mode positive voltages increase the frequency, while in Full mode, increasing CV decreases the frequency. At least that's my take, because the manual isn't perfectly clear.

Shape control on the VCS/A-171-2 happens by switches that mixes some of the output together with whatever CV is incoming to the Rise or Fall CV inputs. This feature allows manually and independently changing the shape of the rise and fall curves. Maths uses a single knob for shape that affects both rise and fall simultaneously, so there is no independent control of rise and fall shape.

Contour 1 separates the shape controls out, with knobs and CV inputs for both rise and fall curves (called 'Bend). This is more flexible than all of the others.
Richard
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FS: US only - Mutable Instruments Streams

"Everything in our world is actually always modulated by everything else." - Peter B

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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by synonymist » Thu Jun 25, 2020 2:00 pm

pugix wrote:
Thu Jun 25, 2020 1:52 pm
I see the confusion. The Doepfer A-171-2 Exp CV input is a frequency CV, equivalent to what Maths calls, unfortunately, "Both CV". Here's a comparison of the frequency (rate) CV inputs on the three modules.

VCS has four rate CV inputs: Rise, Fall, Both, Exponential (Both simply mixes with the separate Rise and Fall CV inputs and is affected by the pots.)
A-171-2 has three: Rise, Fall, Exponential (with the Rise CV normalled to the Fall input for a kind of 'both')
Maths has three: Rise, Fall, Exponential (called 'Both' in the manual)

In all cases, the Exponential CV input is fixed (not affected by pots) at roughly 1V/octave.

Contour 1 takes quite a different approach. It has only Rise and Fall CV inputs for rate. But it adds a mode switch (Full/Audio), which apparently changes the behavior of the CV inputs, so that in audio mode positive voltages increase the frequency, while in Full mode, increasing CV decreases the frequency. At least that's my take, because the manual isn't perfectly clear.

Shape control on the VCS/A-171-2 happens by switches that mixes some of the output together with whatever CV is incoming to the Rise or Fall CV inputs. This feature allows manually and independently changing the shape of the rise and fall curves. Maths uses a single knob for shape that affects both rise and fall simultaneously, so there is no independent control of rise and fall shape.

Contour 1 separates the shape controls out, with knobs and CV inputs for both rise and fall curves (called 'Bend). This is more flexible than all of the others.
Awesome. :) Thank you for taking the time to explain that, and in such detail. The gist of it for me was "The Doepfer A-171-2 Exp CV input is a frequency CV" (emphasis added).

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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by cierny_vlk » Sat Jul 18, 2020 7:52 am

Anyone know if there are plans to restock this in the US?

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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by joranalogue » Sat Jul 18, 2020 8:36 am

cierny_vlk wrote:
Sat Jul 18, 2020 7:52 am
Anyone know if there are plans to restock this in the US?
New units are in the works, shouldn't be long now!
Joranalogue Audio Design
21st Century Analogue Synthesis—Made in Belgium

https://joranalogue.com/

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Re: Joranalogue CONTOUR 1 - Slew Limiter/Function Generator

Post by cierny_vlk » Sat Jul 18, 2020 8:43 am

Great. Thanks!

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