background image

 

CONTOUR 1 

SLEW LIMITER/FUNCTION GENERATOR 

 

 

 

INTRODUCTION 

For decades, the voltage controlled slew limiter 
has been a staple of modular synthesisers. With 
its extreme versatility, it can be used to slew 
control voltages (CVs), create envelopes, as a low-
frequency or audio oscillator and much more. 

Today, Contour 1 brings a fresh approach to this 
classic circuit.  It  delivers  much improved 
performance  and control  by incorporating 
modern design techniques. 

At its most basic, a slew limiter slows down the 
rate of voltage change in a signal. On Contour 1, 
the rising and falling rates can be individually set 
using sliders and CV modulation. 

The gate and trigger inputs allow the module to 
be used as a function generator: create snappy 
attack-release (AR) and attack-decay (AD) 
envelopes, with slope times ranging from 500 µs 
to 30 seconds. The dedicated gate input makes 
it easy to generate  +10 V envelopes from any 
signal source. Using the large tactile push button, 
AD  envelopes can be manually triggered. A 
trigger will also reset the output voltage. 

When set to loop mode, Contour 1 will 
continually re-trigger itself. In this mode, it fulfils 
the role of  a variable-shape low-frequency 
oscillator (LFO) or temperature-stable voltage 
controlled oscillator (VCO) in the audio range. 

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. 

Explore anything from shape-shifting envelopes 
to rich VCO timbres: Contour 1 will make you re-
think what a slew limiter can do. 

CONTENTS 

In the Contour 1 box, you’ll find: 

 

Product card, stating serial number and 
production batch. 

 

16-to-10-pin Eurorack power cable. 

 

Mounting hardware: two black M3 x 6 mm 
hex screws, two black nylon washers and a 
hex key. 

 

The Contour 1 module itself, in a protective 
cotton bag. 

If any of these items are missing, please contact 
your dealer or [email protected]

 

 

Содержание Contour 1

Страница 1: ...actile push button AD envelopes can be manually triggered A trigger will also reset the output voltage When set to loop mode Contour 1 will continually re trigger itself In this mode it fulfils the ro...

Страница 2: ...ly it resets the output voltage to 0 V Secondly while in slew mode it starts a single shot the voltage will rise to 10 V and then fall again until it reaches the voltage on the analogue input This fea...

Страница 3: ...5 V to 5 V Both slopes can be modulated separately or together thanks to the normalisation from rise to fall 8 ANALOGUE INPUT Apply the signal to be slew limited to this input socket When the gate tri...

Страница 4: ...to be out of tune set it to loop mode range switch to audio both slew rate sliders to about 30 down from the top positions and both bend knobs centred Make sure Contour 1 has been powered for at leas...

Страница 5: ...monic frequency of the original source Vary the rise time to select different subharmonics ENVELOPE FOLLOWER To extract an envelope from a signal applied to the analogue input set the rise slew rate t...

Страница 6: ...ule 110 g Including packaging and accessories 195 g SUPPORT As all Joranalogue Audio Design products Contour 1 is designed manufactured and tested with the highest standards to provide the performance...

Страница 7: ...ilson Bj rn Jauss Boris Uytterhaegen Gregory Delabelle Jan D Hooghe Jens Van Daele J r my Bocquet Lieven Stockx Sebastiaan Tulkens Everyone at Wired Electronics Contour 1 User Manual version 2019 09 1...

Отзывы: