Blacet "Too Many Panels" Design Contest 2-2006


The Task:
We have an extreme excess of Multi panels (do to a series of unfortunate events!).

Rather than toss them, perhaps someone out there can figure out a module that would use *only* the existing holes (we can strip and rescreen the printing).

There are 5 jack holes and one pot hole. You can look at the panel here:
http://www.blacet.com/multi.html

You don't have to draw up any schematics; just figure out the general purpose and label the panel.

I don't know what the prize will be yet but it will be something good, depending on the "brilliance" of the concept.

I reserve the right to forget the whole thing if no one comes forth with anything useable!

Send entries to blacet@blacet.com with "Blacet Contest" in the subject line. You can send a .jpg and/or a written description.


The Winners:
Everyone really deserves credit for a lot of great ideas! We had about 50 entries and it was hard to choose just a few winners.

There were 17 ideas that were of the "scanner/switch" type module, so that really begs for a new product.

Two other modules, phase shifted waveforms and sample/holds also were popular.

In the end, I had to pick some intriguing modules that made me wonder what they would do or even if they were possible.

The Grand Prize ($100 Blacet Gift Certificate) goes to KH's "Phase Spread Module".

The Runner Up ($50 Blacet Gift Certificate) goes to D's "SHHH, Sample and Hold and Hold and Hold Module"

Honorable Mentions ($25 Blacet Gift Certificate) goes to:
PL's "Haaspertame Module", MMG's "Xpander Module", PW's "Clocked Random Pulse Generator Module",
M's "Three Input Scanner Module", and CC's "Headphone Amp Module".

The winners are also noted below.

These Certificates are good until the end of 2006. Just mention them when your place an order.

Thanks again to everyone!

The Responses (names witheld to protect the innocent...;)

This module is an electronic switch with a clock to control it. The clock is a simple LFO which just generates a square wave. This sq wave is output at the bottom jack, and the clock's rate can be controlled with the pot. The jack above the pot breaks the LFO's normal to the switch and allows the user to control the switch from an external source with a threshold of +5V. The top three jacks A B and C could either be inputs or outputs. A and B are alternately connected to C at the rate determined by the module's clock.

Yes, I stole this idea from the ARP 2600. The electronic switch was always one of the most useful modules on that system, IMHO, and more importantly, while it's functions could be duplicated with an LFO, inverter, and two VCAs, no modular company currently has one on the market. Granted, Metalbox has the sequential switch, but that's really a whole different thing entirely (I have one).  --SE


Hi John,
Fun idea for a contest.
How about:
A simple phase inverter

O = Input
O = same signal, 90 degrees out of phase
O = same signal, 180 degrees out of phase
O = same signal, 270 degrees out of phase
Knob = dial in a specific amount of phase difference for bottom output
O = output based on knob setting

Thanks for your patience....--GR

Will this work, I have no idea.
 
Switching Module
 
Turn panel upside down...
 
- IN
- 3 way switch
- CV
- 3 OUTS
 
run your signal into it, and than you can choose between 3 outs controlled by the switch or use CV to switch between the outs (like throwing an lfo into the bank or wave cv's of the miniwave to change banks/waves)...--C MD





I'm sure I'll have other ideas but here's the first... Passive Ring Modulator w/Preamp. Jacks from Top Down Carrier Modulator Output In Gain Out Output normalled to PreAmp in and vice-versa, so plugging into either disconnects the other. Transformers and diodes for producing decent ring mods are available from Mouser cheaply ( 42TM018 transformer matches the Stancor on Kevin's site, and 1N34's are widely available ). Everyone needs a passive ring mod, I personally find the sound much preferrable over a 1496 or AD633 based and because of the signal loss having a preamp is almost required...--TA

A clock module - sort of like a BZ.

Performs a Boolean add of all input CV sources (triggers, clock  signals or CV)
Samples the result at the rate determined by the rate knob
Outputs a trigger if the voltage is high.
Some options
------------
Perhaps one of the inputs is a dedicated clock input that determines  sampling rate
Perhaps the rate knob is a threshold control that determines how high  the voltage has to be to trigger (useful for normal CV sources like  envelopes and LFOs)--MD



This looks PERFECT for a gate delay type of thingy.  The lowest jack is the GATE IN, but if there is nothing connected to it then the POT is the RATE of the internal gate.  The other four jacks are /1, /2, /3, & /4 delays (the / reads as “divide by”)

<>That would be cool!--MM
here is a purely theoretical module.  how about calling it 'the dragon whisp' or something to imply a cloudy breathy nature.

input at the bottom. top 4 jacks are output.

the pot is a slew rate attenuator which:
1. adjusts the rate of portamento
2. adjusts the delay time for the output to reach the output jacks.
for extra fun, the slew rate should be non-linear.

so, if you play a 2 notes, the signal will glide up to or down to the 2nd note (from the first note) on the 1st output.  then, as you ascend higher on the output jacks, the voltage is lower but is gliding up at speed and at a time proportional to the pot.  for example:

note 1 = 1v and note 2 = 2v, pot at 50%....
time = 2sec
input - 2v
pot - 50%
out1 - 2v
out2 - 1.75v and gliding up
out3 - 1.33v and gliding up
out4 - 1v and gliding

i would think the ideal time range would be from < 1 sec to about 15 to 30 sec on the final jack.

no clue how useful it would be, but having 4 oscilators trying to catch up to eachother could be great for some killer drones.

i have attached a very crude ms paint version of the outputting voltage to help give some representation to what it might look like, in the even that the description isn't helping.  i don't have access to a more professional imaging tool right now, so sorry for the ugliness.
thanks. --KI



I always love switches so I figured this might be a good  one for a new Blacet...Hope it makes sense since I'm not a techie  sort of guy...I like the idea of a built in clock for sequenced  strangeness...but which can be bypassed for random quirkiness...The  CV input would be for more smoothed effect with different waveforms  instead of a clock pulse or trigger...Thanks in advance...--JM



No JPG, sorry, but I have a few ideas.  I am not an engineer and some of
this may not be possible, but *I* think these ideas are useful :)

1. Materioptikon (Phase anti-cancel)
o One input
o static 45 degree phase shift output
o static 90 degree phase shift output
o static 180 degree phase shift output
o knob for variable phase shift output
o variable phase output
Sort of like the "Dual Filter" module is a no-CV minimal version of your
other filters, this could act as an inexpensive, minimal phasor that one
dedicates to solving phase cancellation issues. It may be particularly
handy for live performance, where you may not have a handy "flip phase"
button on the house mixer (or where no such house mixer exists and you are
on your own).

Honorable Mention
2. Haaspertame (Haas effect stereo sweetener)
o Left (or mono) input
o Right input (if you want to make a stereo image "Wider")
o Left Output
o Right Output
o knob for "amount of stereo spread"
o CV input for variable sweetness

About the only thing I use my Lexicon Vortex for is the Haas effect built
into the Choir patch. I barely understand what it does, but I know I like
it :) Ok, make it a dedicated module for turning little mono signals into
big sprawling stereo monstrosities. Amount of stereo width set by a knob
or modulated by CV. In an ideal world, I guess you'd have an attenuator
for the CV; perhaps is should be built so that when you plug a cable into
the CV input, the spread knob magically becomes an attenuator (did I
mention I am not an engineer?).

3. Source of only a little certainty, or "Wogglito"
o Rate CV in
o Step Clock CV in
o Disturb in
o Smoothed output
o "Clustering" knob (as in the Wiard)
o Stepped audio out
Totally out of my depth here, but take a WoggleBug or SOU module and
extract a minimal set of controls for creating random voltages. Feed it
a few LFO signals for clock, rate, and disturb, then one knob to set the
output range within possible 0-10V, and smoothed and stepped out.---PL

How about a simple 4 input, 1 output summing mixer for DC or audio with a reversing attenuator?
 
Or...
 
A 1 input, 4 output signal buffer with gain control (kind of blah)
 
Or...
 
1 input phase type device with quadrature outputs? 90, 180, 270 and 360 degrees. Knob as a spread control to make the degrees ratio "squash and expand"? More of a fantasy but would be a good CV processing device. Even better for audio maybe.
 
Or...
 
A simple 1 in, 4 out sub octave generator where the knob is pulse width for the divisions?--TW
What about a simple preamp/envelope follower/trigger detector? labeling (bottom to top):
 
-Preamp audio input
-Gain (pot)
-Preamp audio output
 
-Detector input (this input is normalled to the preamp audio out, but when inserting a jack here you can use the env follower with the signal)
-Envelope out
-Gate out
 
Another idea would be an analog shift register, labeling again from bottom to top!:
 
-input
-input attenuator
-trigger input
-out1
-out2
-out3
-------JA

I came up with a few ideas for the Multi panel, 5 so far, all of which
I'd be very happy to buy from you to add to my setup.

All of them are designed with the Multi panel "Upside Down", so
that the pot is closer to the top. Additionally, two of the designs
also incorporate adding a small 2-position toggle switch, like the
one on your VCO or your Final Filtre, which I think there is ample
space on the Multi panel layout for. However it would of course
involve drilling one hole in each of the panels, so I don't know if
that fits your requirements or not.

Anyway, without further ado, here are the ideas. I'll describe each
one 'top-down' starting with the uppermost jack, then the pot, then
the remaining jacks in descending order.

#1: MultiTap Splitter
----------------------------
Multi-tap a single gate input into multiple cascading gate outputs!
Like a multi-tap delay, but for gate signals. Handy toggle switch
lets you use it as a simple multi-tap delay as well.

- Top jack is CV In for 'Time', which is also adjustable by the pot.
- Pot adjusts 'Time'
- Toggle switch mounted below pot, toggles the unit to process
'Gate' or 'Audio'
- Next jack down for 'Input'
- Next jack down for Single divisions out
- Next jack down for half divisions out
- Next jack down for quarter divisions out

Honorable Mention
#2: Xpander
-----------------
Use your modules in external effects chains, OR use external
processors within your modular. Instrument or line level.

- Top jack is CV In to control Blend (Wet/Dry), also adjusted by the
pot.
- Pot adjusts Blend (Wet/Dry)
- Toggle switch mounted below pot, toggles the unit between
Instrument/Line levels for the external send & return
- Next jack down for "In from Modular"
- Next jack down for "Out to external"
- Next jack down for "In from external"
- Next jack down for "Out to Modular"

#3: Simple S&H
---------------------
S&H of incoming waveform, as well as internal sinewave.
Seperate outs. Bonus feature: can be used as simple sinewave lfo.

- Top jack is CV control of 'Rate', also adjusted by the pot.
- Pot adjusts 'Rate' (both the rate of the internal sinewave, and the
rate of the S&H's sampling)
- Next jack down: 'Waveform Input' (Normalled to internal sinewave
when nothing plugged in here)
- Next jack down: 'Output of Sampled Sinewave Only'
- Next jack down: 'Output of Sampled External Wave Only'
(identical to the previous jack if nothing is inserted into 'Waveform
Input' jack)
- Next jack down: "Output of Pure Sinewave, unsampled"

#4: Simple Ringmod
---------------------------
The name says it all. Perhaps 'Frequency Shift' (or something like
that?) is a better candidate for the CV and the Pot, than 'Blend'?)

- Top jack is CV control of Blend, also controlled by the pot below.
- Pot adjusts wet/dry blend. Maybe it should be freq.shift or
something else instead?
- Next jack down: Audio In
- Next jack down: Carrier In (maybe normalled to some interesting
internal waveform?)
- Next jack down: Output
- Next jack down: 100% wet out? shifted frequency out? hmm.

#5: Simple VCO
----------------------
Again, it's all in the name with this one. Fairly fixed frequency
range, outside of what the 'Fine' knob can get you to.

- Top jack is obviously gonna be CV In, v/oct.
- Pot is 'Fine' so you can tune the thing. Maybe it's possible to
slightly adjust the range as well.
- Next jack down: Sinewave output
- Next jack down: Saw wave output
- Next jack down: Square wave output
- Next jack down: Noise? Maybe half osc. rate output?

Maybe mount a toggle switch to get from LFO to audible
frequencies, so it's usuable as a simple LFO also?
--MMG

how about a vc panner?..- KFW
Or, you could always just do the opposite of a multi and offer a 4-into-1 merger unit/unity gain mixer --MMG

Here's my idea: 4 in 1 out or a 1 in 4 out selector. The top 4 jacks can be 
inputs or outputs and the bottom jack can be the common jack. A rotary
switch can do the selecting. See the attached jpg file. This is the simplest
idea I can come up with. --D



A module with five jacks and one pot? My first choice
would be a VC Quadrature Generator. From top to bottom
on the Multiple FP: four LFO phases Out, an Initial
Frequency knob, and a CV In (or maybe it'd work better
if you flipped the panel ;) . It'd be a small and
simple, yet pretty useful little module, and a natural
match for your Quad VCA for a cool VC quad
auto-panner. ---SR

Switch/Fade module:

Take three inputs (three audio or three CV) and switch them sequentially to the output. A gate or pulse wave at the clock input triggers the switch.

A switch is nothing new, but here is where it gets interesting. The knob controls the cross fade rate. Full counter clockwise produces hard switching. At full clockwise the inputs take the maximum time to cross fade. (say about 10 seconds?)

Applications include:
Combining three oscillators, waveforms, and other audio sources.
Creating complex modulation patterns.

Panel layout:
input #1
input #2
input #3
clock in
cross fade amount
output

I'd buy a couple of 'em.  --DS

One knob, 5 jacks - tough one. The only idea that comest to mind is Ken Stone's Analog Shift Register. See attachment. --JB



Honorable Mention
I have a suggestion: A clocked random pulse generator.

The bottom hole is input. Inside there is a unit that on random or pseudo random base put out some of the signals in the jack above. The probability of it is decided by the pot. The third, fourth and fifth jacks from the bottom has a frequency divided signal, for example 0,75 0,5 and 0,25 of the pulse rate of the second output. When a signal appears in two outputs at the same time, the one with the fastest rate is always suppressed.

At fast LFO level, it would be a device for rhythm, triggering noise or metal sounds, high hat if you like. At low LFO rate, could be used for triggering different parts of a complex patch. At audio range, with low setting of the probability, it would be a bit like a random controlled pulse oscillator and a frequency divider with a lower fifth added to the two sub octaves, a true fattener of the VCO. I am not sure about the ratio of 0.75 is correct for the fifth, but that can be checked out.

Another refinement is to use one of the five jacks as CV input for the probability function. Then there would be one pulse input, and three outputs for random signals with different time signature. It would increase flexibility, but is not necessary.

I guess that it could be built around off the shelf digital counters and logic processors. 

The name could be "The Dice man" or something like that. I think it would fit together with your other modules, like the Binary Zone and the audio/clock divider.

In my setup, run a combination of Doepfer/Analogue Systems/Metasonix/Analogue Solutions modular together with the Clavia G2 virtual modular. I frequently use the clocked random generator of the G2 for many purposes. But I have not seen a correspondent gear in the real modular world yet. And making it the way I suggest would make it more versatile than the clocked random pulse generator of the G2.

I plan to add an Blacet/Frack Rack part to my setup but have not done it yet. Buy I love the idea of having designed a module. --PW
Your modules are great. Just had to say that. Anyway my friend sent me your contest and I came up with an idea.
Use the "output" as an input. Instead of the pot use a rotary switch. Then it is possible to switch to the four outputs (which were originally "inputs")
 
It would allow kind of like a transformer effect, or glitch effect or simply switch effect.
Imagine
output 1 = Time Machine - delay held 
output 2 = reverb
output 3 = sequence
output 4 = Dark Star
 
Input = VCO
 
switch to 1  the delay starts doesn't stop.
switch to 2 play a lead line with reverb
switch to 3 pulse the sequence
switch to 4 Dark Star - Crushing noise!
Turning the switch real fast would give the glitch effect.
Could even put a momentary switch on top of the rotary switch to add real transform you know like Amplitude LFO in real time.
You could even use a switch with a pot on top so that you could get volume control. Heck, you could even use a switch with that has 1,2,3,4,1+2,1+3,1+4, so on and so forth. You could even use the switch effect I described and then run those outputs thru the modules then back to the original "Multi/Atten" so that they are all balanced.
 
I think you get the picture.
 
Thanks for cool products! --KU

I'm just looking at my module designs for what I thought was useful.
http://modularsynthesis.com/modules/modules.htm

Headphone amplifier.
left in
right in
stereo in
headphone out
volume control
headphone out (1/4" for pro phones)  - would require redrilling.

Analogic
in 1
in 2
in 3
greater than out
output level control
lesser than out

Comparator
in 1
in 2
sum out
comparator out-1
comparator level control
comparator out-0

Trigger delay
trigger in
gate in
led
delayed trigger out
delay control
trigger and delayed trigger out

A440 reference
in 1
in 2
in 3
mix out (in1-3 and A440)
A440 level control
A440 out

-10 db level convertor
in 1 (+/- 5 volts)
out 1 (-10 db)
in 2 (-10 db)
out 2 (+/- 5 volts)
in 1 level control
out 1 adjustable

power amplifier interface
left in
right in
left out (ac coupled)
right out (ac coupled)
master volume
CV input for pedal volume
---DB

Can you make an external patchable module device that will work with
the 5 jack holes and have it stick out like a wart. Blacet wart module?
1 part just hangs on little 1 in cords but has the other knobs you need
for the other half of the module. It has to be ugly. Have a very nice
day. Im cold. bye --J

Lowpass Gate

top jack: signal input
2nd. jack: LP on/off (via gate signal)
3rd jack: VCA on/off (via gate signal)
4th jack - cv input
attenuator
5th jack: output  --NK

Sample and Track and Hold

top jack: signal input
2nd. jack: trigger input
3rd jack: Track & hold output or switch for T&H
4th jack - cv input smooth amount
pot for smooth amount
5th jack: S&H output   --NK

nice idea with the contest  :-) 
here are my first suggestions, maybe i send some more next week.

1.
how about an octave switch module for your vco's?
- one rotary switch to select the octaves (probably -3 to +3).
- two inputs for pitch cv's (unity gain precision mixer)
- two outputs holding the (buffered) mix of all inputs + rotary switch
- another output which holds only the voltage from the rotary switch,
or probably a third pitch cv output (same as the other two outputs)

2.
a simple s/h module with lag
- knob for slew time
- two sample inputs (mini multiple, only one real input)
- clock input
- sampled output without lag
- sampled output with lag

3.
a quantizer
- a knob to determine the scale
- two inputs for pitch cv's (mixed internally)
- three quantized outputs

4.
a dual quantizer
- a knob to determine the scale for quantizer 1
- input for quantizer 1
- two outputs for quantizer 1
- input for quantizer 2
- output for quantizer 2 (fixed 1/12 volts steps)

5.
a buffered version of the multiple
- same as the passive multiple, but active
- maybe the knob could not only attenuate, but also amplify (2:1)

6.
an octave switch module with built-in 1/12v quantizer
- same as suggestion 1, but with a simple built-in quantizer
---IZ

I hope *multiple* entries are OK!

(I should get bonus points for that one)

My Lag Generator and Differential JPGs are attached --AS

:)

I thought of something else using the Switch module and the Multi Panels. I think its kind of cool and applicable to live applications. Basically its kind of like a analog preset manager. Here is a really really sloppy picture
 
What it allows is the input of a source. That source can be switched to 1 of 3 "multipanel" mixers then the output go to the modules, the output of the modules go to the original multipanels("presets"). I'm sure you get the idea from the picture.
The way I was thinking of it is to program the modules before a show. Then during a performance just turn the switch to go from preset to preset. --KU

Here's one of my ideas (I hope you'll accept more than one entry per  
person since I have a few more kicking around, too!). A 
straightforward 3-stage shift register. I inverted the panel so the 
pot was near the top. The top jack is an external clock input that 
would override the internal clock. The pot controls the rate of the 
internal clock. The next jack is the input, and the bottom three 
jacks are the three output stages of the shift register. --CC



An analog shift register like Ken Stone's CGS34 (which he probably appropriated from Serge).  Top 3 jacks are Out1, Out2, Out3.  Fourth jack is Input.  Fifth (bottom) jack is Clock input.  Knob is connected to simple clock that is normaled to the circuit, and is disabled when you put an external Clock input in. --GS

Micro Frequency Divider:
Input
Divide 1.5 Out
Divide 2 Out
Divide 3 Out
Divide Amount Select Knob 2,4,8,16
Selectable Divide Out

Micro VCO:
Saw Out
Square Out
Sine Out
CV In
Mod Amount Knob
Mod CV In

Simple LFO:
Saw Out
Square Out
Sine Out
Triangle Out
Frequency Knob
Sync In

Ring Mod / Attenuator:
X In
Y In
Ring Out
In
Attenuator
Out

Noise / Sample & Hold:
External Source In (Normalled to Noise)
Noise Out
S&H Out
External Clock In (Normalled to Internal Clock)
Frequency Knob
Internal Clock Out

Multi / Lag Generator:
Multi 1
Multi 2
Multi 3
In
Lag Amount Knob
Out

Stereo VCA:
In Left
In Right
Out Left
Out Right
CV Amount Knob
CV In

Invert / Crossover:
In
Invert Out
In
High Out
Frequency Knob
Low Out --MK

I found out about your contest via the Matrixsynth Blog.  The attached JPEG is something I came up with off the top of my head.  It was fun doing that, I'll probably have more to come.  --PS



Runner Up
Enclosed please find my image SHHH.gif. This is a "sample & hold & hold & hold". It is one of my ideas for your contest. It may be a subset of the binary zone module but I figured I'd let you see what you thought.

    The basic idea is that the bottom portion works identically to a regular sample & hold, and the top two outputs are S&Hs where the clock is run at one-half or one-quarter of the speed as the main output. Breaking out the divided-down S&H signals to output jacks would allow them to be routed to different modules, so that rhythmic effects could modulate the filter/wavefolder/etc in sync. --D



Enclosed please find the file REVERB.jpg, it is my second entry to your module contest. The long and short reverb tanks shown here are the standard Accutronics or other reverb tank; one short, one long, to provide different reverb times.

    The controls are rather simple - the outputs are as well. The input drive control is standard for reverb units, but the output setup is not. The four output jacks are, from bottom to top: the output from the long tank, the output from the short tank, the sum of the long and short tanks, and the difference of the long and short tanks.

    The purpose of this module is to give versatile reverb sounds from a small "footprint" in a modular unit. While it is not a very tweakable module, the design should allow a much wider tonal range than seen in most modular reverb units, and the multiple outputs allow the user to route differently-reverbed signals as desired.  --D



1. Auto env - knob controls preset ADSR stages for 8 of the most useful envs.

2. Simple DC mixer w/lag out.

3. Quadrature LFO w/CV or sync in.

4. Noise spectrum - 4 kinds of analog noise along with a variable digital source

5. Simple sequencer / clock- rate CV in,  rate knob and 4 gate outs

6. 4 input or-gate w/ variable one-shot out

7. TV remote control actuated gates- IR photosensor decoded to gates.  --KL

Call it a selector, the one input goes sequentially to 
the other 4. (or vice-versa). Knob for speed.

I know what a metal error is like.. once got a
few grand of boxes folded INSIDE OUT!!
That would have required a major redesign!

In fact, now i think a bit, you could rig it so that
at full anticlockwise you had low speed
sequential, then at 12 oclock, full speed sequential
(in the audio range) then switch to random selection
going on to slow random selection. --PP

Honorable Mention
Hello. My suggestion is a 3 input scanner module.

The top 3 holes will be the inputs.

* The 4th hole will be an input for voltage control (*with a logic circuit).

The 5th hole will be the output.

* If there is NO input to the 4th hole (mod input), then the knob functions as manual control over the
selection of the input mix scanner (1 to 2 to 3). It would be fantastic if there was a way to wrap the
value back to 1 (from 3). So the panel around the knob will show positions for 1,2,3,1.

* If there is an input to the 4th hole (voltage control input), then the knob functions either as the amount
of voltage control applied to the scanner, or maybe simply as a position offset for the start of the
modulated scanner position. In the case of the latter, maybe no logic circuit is necessary.

It will be nice too, if this module can function either for audio signals or control signals.

The obvious variation on this idea would be to make it a VC router where holes 1,2,&3 are outputs,
and hole 5 is the input.

Forgive me, I am not an electrician. I am a musician/composer/sound designer (and analog synth enthusiast)
that can only afford to own Reaktor. So I am taking this idea from my experience of tinkering with a
software synth. When I eventually do own an analog modular, I know that I will find a module like this
very useful. --M

Sorry for the extra emails. I figured I should include a description of my Mixer/Panner idea.

 The 3 inputs could be set to a pre-set gain level. Maybe a passive design? The output section would probably be active, and would pan all three inputs to the left, the right or anywhere in between.

 This is one module that I could use in my system as a quick way to mix a single osc's waves (tri, saw, pulse) together. Sort of like an osc aid module. If a single output is used (say the left), the other output could be a CV input to control the output gain, with the pot being the CV gain control.I guess this would be a Mixer/VCA.

 With more than one of these modules (utilizing the L/R Pan function) a synthesist could easily mix multiple signal sources and pan them to different parts of the stereo spectrum - with two Mixer/Panners being the final L/R output signal.

*******************************************************

**** An alternative to my Mixer/Panner idea is to have it as a CV mixer instead of an audio module. The top 3 inputs would mix three CV inputs at equal levels. The bottom section could have one CV input, an Attenuator pot, and one output. *****

*******************************************************

****A variation of the CV mixer would be to have the bottom section select between each of the three CV inputs - in a smooth/fade type of crossfade. The pot could be a manual CV input fade control - until a modulation input is connected to a "Mod Input" jack.. Then the pot would be an attenuator for the Mod Input. The last jack at the bottom would be the output. This would be a great way to add complex/evolving modulation to a patch. ****  --AS



Here's my suggestion for the contest: a quadrature LFO module.  From top to 
bottom:

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

0 degrees output

90 degrees output

180 degrees output

270 degrees output

Rate pot

Rate CV input

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

Perhaps if nothing is plugged into Rate CV In, the Rate pot is a manual rate
control, but if something is plugged into Rate CV In, then the Rate pot acts
as a CV attenuator?

It's up to you whether it's a triangle or sine LFO (I'd vote for sine). --LS

Hi,

Here's another idea.  Just a simple little VCO.  --PS



Here's another idea.  Sort of stemming off the simple VCO idea.  Use DCOs or digital waveforms (like miniwave) so you don't have to worry about going out of tune.  two oscillators to make a little voice, for music.  Maybe the two voices can be changed with different ROM chips?  --PS



Here's 2 ideas:  (jacks/knob from top-down)

#1 SAMPLE AND HOLD MODULE:
inverted s/h out JACK
normal s/h out JACK
clock out JACK
clock in JACK
rate KNOB
input signal JACK

#2 CV PROCESSOR
rectified out JACK
inverted out JACK
normal out JACK
cv control of attenuation/inversion JACK
attenuation/inversion knob (-/+) JACK
input signal JACK

Of course a re-ordering of a few of the jacks would be fine. --CE

How's about a polarity processor (I'm someone could come up with a more amusing name).

Top section
1: input
2: output: positive portion of input signal
3: output: negative portion of input signal

Bottom section
A polarizing attenuator:
input, output, pot goes from minus unity thru zero to unity.

I've built a couple of the top section units.  Very useful. --PML

how about keeping the passive attenuator on the bottom part the same, and making the top three jacks a passive ring modulator, like the one on kevin lightner's site. x in, y in, and output. --G

My core concept is for a voltage-controlled linear cross-fader. I have many of these in my banana-based systems and use them all the time. No one currently offers this module in Frac format, and aside from Grant's ~discontinued~ 300-series Mixolator, you cannot find this module anywhere in the 1/8" world. (I realize your dual linear VCA can perform this function, but it requires external modules to achieve a cross-fade, either manually or by voltage control.)
 
Attached is a mock-up of my panel design. Note that there are two inputs for the first side of the X-fade, A1 and A2. I suggest that the input from A2 be inverted before being summed with A1. I further recommend normalizing a constant voltage source (+10 volts?) to input B. These two subtle tweaks would add considerably to the module's flexibility. Beyond its use as an audio or CV cross-fader, the module could be used for scaling, inversion, and as a manual voltage source. I would certainly buy at least one - probably two! --CS



A little  idea for the multi panel : you could turn it in a "automatic
switching mixer".

Let me explain :
- the upper plugs are inputs A B and C.
- the middle plug is the trigger input.
- the lower plug should output the A B C input signals, switching
between them ( ... A B C A B C A B ... ). Switching rate is controlled
by the signal fed into trigger input
- the pot controls cross-fading between the input signals ( slow
crossfade or abrupt switching )

Possible use cases :
- you could connect three audio signals to A B and C, then some slow
LFO signal to trig, and set for a slow crossfade to get evolving
textures ( is this some kind of simplified vectorial synthesis ? )
- same inputs with a audio rate trigger might give something
reminiscent of granular synthesis
- now connect two CV and one audio signals and use the output to
modulate filter cutoff or osc pitch for wierd cycling modulation

one last thing - the module should have an internal switch to change
the ABCABCAB behaviour in ABCBABCBA ...

voila ! Hope you'll like the idea ---DB

I've got a few more ideas for the design contest. I'll list the  functionality from the top down, with the panel inverted from the  Attenuator/Mult panel (in other words, it will be listed from the top  as Jack 1 (top), Pot, Jack 2, Jack 3, Jack 4, Jack 5).

Honorable Mention
HEADPHONE AMP
Level LED (bi-color - green for output level, red for clipping)
Volume (dual ganged pot)
In Left
In Right (normalled to In Left so mono signals would go to both sides  of headphones)
Out 1
Out 2 (duplicate of Out 1)
____________

MINI VCO
V/Oct Input
Pitch Pot
Saw Out
Square Out
Sine Out
Triangle Out
______________

QUADRATURE LFO
Rate LED (or possible Rate CV In)
Rate Pot
0 degrees Out
90 degrees Out
180 degrees Out
270 degrees Out

Outputs would be only one waveform (maybe sine, saw or trapezoid?),  all 90 degrees out of phase from the next. The top hole would either  be a rate LED or a rate CV in.
_______________

QUANTIZER
CV In
Transpose Pot (or possible Scale Pot)
Transpose CV In
CV Out
Trigger Out
Trigger LED (or possible Gate In)

This would quantize an input voltage to musical intervals. The pot  would either be for Transposing the input CV up or down, or else it  would select from certain present scales (maybe use an encoder  instead of a pot, or possibly a pot with a number of detents to  signify when the next scale is chosen). The Trigger Out would send a  trigger pulse every time the output voltage changes. The Trigger LED  would flash accordingly. The Trigger LED could be replaced by a Gate  In jack, which would only allow the output voltage to change when the  Gate is high (this would be normalled to +V).
___________________
VC LAG
Linear/Log Switch
Lag Pot
Lag CV In
CV In
CV Out
Gate In

The top hole would be a switch to select Lin or Log response. The Lag  pot sets the lag time, as does the Lag CV in. The Gate In would turn  the Lag Circuit on or off, allowing some notes in a sequence to have  lag, and other to not, depending on the status of the gate. This  would be normalled to +V or Ground, depending on whether you wanted a  High Gate to mean there would be lag or there would not be lag  applied to the input CV.
___________________
VC SWITCH
Status LED (bi-color Red/Green)
Trip Point Pot
Switch CV In
X I/O
Y I/O
Z I/O

This would be a bi-directional VC switch, with either X connecting to  Z or Y connecting to Z. The pot would set a trip point, and if the  Switch CV was lower than that point, then X connects to Z, if it was  higher, than Y connects to Z. The LED would change color based on  whether X or Y was connected to Z.
_____________________
"SYNTH"-IZER
Signal In
Threshold Pot
Square Wave Out
V/Oct Out
Gate Out
Gate LED (or possibly Envelope Out)

This module takes an input signal and gives it qualities that will  allow it to be used with an analog synth. The signal In would be any  non-synth audio signal. The threshold pot would set the level at  which a comparator would trip, which would generate square waves  based on the frequency of the input signal. There would also be a  Pitch to Voltage circuit (not that easy, I know) to output a V/OCT CV  based on the input signal. There would be a Gate Out that would be  high for as long as the input CV was higher than a certain level  (also set by the threshold pot). The would be an LED to indicate when  the gate was high. Otherwise, there would be an Envelope Out CV,  generated from the input signal's envelope. This module is similar to  the I/O module you have already, but with a little twist.
_____________________
4-BIT ADC
Input
Input Level Pot
Bit 0 Out
Bit 1 Out
Bit 2 Out
Bit 3 Out

Takes an input voltage and converts it to 4-bit binary. The input  level pot would be a reversing attenuator, that would allow one to  add negative or positive offset voltage as necessary for the input  signal. The out bits could be used for triggering various events.  Should be DC-coupled so it could be used for CVs or Audio. Output  LEDs would be useful for this module, but there's no space!
_______________________

4-BIT DAC
Output
Output Level Pot
Bit 0 In
Bit 1 In
Bit 2 In
Bit 3 In

The opposite of the above module. Takes gates or triggers in any of  the Bit inputs, and outputs an analog voltage based on the binary  number input. The output level pot would be a reversing attenuator  that would allow some positive or negative offset voltage to be added  to the output signal. The DAC and the ADC could be useful companion  modules, even functioning as a sort of distortion device if one  wanted to digitize an input waveform and output a low-quality  digitized version by hooking the out bits from the ADC to the in bits  of the DAC. Should be DC-coupled so could be used for CVs or Audio.
________________________
MINIWAVE EXPANDER

PROM Select CV
PROM Select Pot
LED 0
LED 1
LED 2
LED 3

This would basically take the Miniwave Expander available from Dave  Hylander/Scott Juskiw and make it "official." It would allow the  Miniwave to have voltage controlled selection of up to 10 PROMS. The  PROM Select CV would be normalled to +V and would be connected to the  PROM Select Pot. In this was the PROM Select pot would also act as an  attenuator if a PROM Select CV would be connected. The LEDs would  flash the binary number of the selected PROM.

Thanks for the opportunity to throw some ideas around! I can't wait  to see what some of the others have suggested! --CC

I really like how your kits are very reasonably priced.  I'm not sure if you are aware of the little stunt Cyndustries just pulled where they raised their ZO price by $100 for a couple days, then lowered it again.  It was to get people to stop thinking about it and buy their expensive module already.  I was actually thinking about getting one, but that little stunt really put me off to buying from them.

I'm not sure if this idea is viable, buecause I'm not even exactly sure how the ZO works, but here is my "undercutter" idea
A sin wave with two phase outputs.  switch for linear or exponetial CV control (maybe a 1V/oct position as well).  a knob to control a huge frequency range.  I'm not sure if there are small pots that can turn that huge range with precision, but I think I've seen knobs like that on oscilliscopes.  --PS



Chord Generator:

This module would produce preset CV values to produce various four-note chords. The bottom jack would be the master CV input. The top four jacks would output four voltages relative to the master CV. These would be routed to the 1v/octave inputs of four unison oscillators. The result would be a preset tuned chord. The knob would switch the mode between several chords or overtone sequences.

Panel layout:
CV4 out
CV3 out
CV2 out
CV1 out
preset select knob
Master CV in

Possible presets:
major
minor
major 7th
minor 7th
dominate 7th
diminished
suspended 4th
suspended 2nd
whole tones
overtones (various combinations)
4ths
5ths
octaves
jazz voicings
tone clusters

---DS
Here are some ideas (probably crazy) for the multi/atten panel layout. They all have the same concept of a 'spread' function:

 Grand Prize
1) The bottom jack is the input of an audio signal. The pot space is called "phase spread", and it controls the spread of phase shift in the 4 output jacks. Fully counter clockwise, all out 4 outputs are in phase. Fully clockwise, bottom #1 is in phase, next up is #2 at 90 degrees out, #3 at 180, #4 (top) back in phase at 360 degrees. Variable in-between. The outputs could be put through a mixer for filtering effects.
 
2) An open-ended time function. A tapped delay for triggers. The bottom jack is input. Fully counterclockwise, all four top output jacks are simultaneous in time with the input. As the 'Trigger Spread' control is rotated, trigger delay occurs at 1, increased a greater amount at output 2, even longer at output 3, and yet longer at 4. (I'm not sure how a reset could work when the input is faster than output 4).
 
3)  This may be the most simple, but needs the most accurate components: A fixed spread voltage divider. Major, minor, dominant 7, etc. chords. The bottom jack is input. The top four are outputs. You could offer a separate module for each chord, or have an internal switch to change the chord (CV) types. The pot would simply change the input CV (Tuning). Alternatively, you could even have a fixed CV input, and a rotary switch in the pot position up front to change the chord types (voltage divisions) to the outputs.  (I meant to add that the unit's outputs would be calibrated to the 1v/Oct standard of your other VCO and filter modules. Each output could feed the CV input of several VCO or calibrated filter modules.)  --KH

Blacet / frac system needs a portamento module!  For the panel use cv in jack, port time pot, cv out jack.  You could keep the mult as you usually need portamento going to several oscillators.

You guys have very cool gear! --TJ

OK, that's it. The Jury will now deliberate.......