"The Noise Modular is a very nice handmade Synth. It features 12 squarewave oscillators. You can connect the outputs of the oscillator with two mainoutputs. The signal strength of the main outputs can be adjusted with a potentiometer. With the two push buttons you can control the sounds of the oscillators. You can change between a nice and clean to a noisy sound. You can make hundreds of nice combinations with the synth... It is based on different "Lunetta" schematics..."
"For the final time, for those into CMOS/Lunetta etc, the final contents are;
2 x 4015 giving 4 x 4 bit shift registers
1 x 4040 divider
1 x 40106 providing 6 x Oscs (these are pretty wide range and go from audio rates down to really low freq)
1x 4070 giving 4 x XOR
1x 4070 set up as an XOR chain
1 x 4093 giving 4 x Gateable oscs
3 x AREGVCA (Attack Release Envelope generator and Voltage controlled Amplifier)
1 x 4069 giving 2 x triangle LFO
1 x 4046 as VCO
1 x 4011 Pseudo ring modulator
1 x passive LP filter with LDR control
2 x 3 input passive mixer
4 input resistance mixer with diode summing
Power output rails
Small kludge area
Breadboard"
"A workshop I gave as part of the seminar period at the HKU school for fine arts. 4 days of noise and experimenting with cmos chips, a great way to learn basic electronics and sound synthesis. The entire workshop is solder free with the use of electronic breadboards and simple basic components. We worked on a need to know basis so students would first make something and afterwards the underlying theory is explained.
Thanks to everyone involved and especially HKU for making it possible in the first place."
"For those into cmos/lunetta (!) it already contains, 2 x 4015 shift registers, 6 x 40106 oscs, 4 x XOR gates, 1 Kludgey area, 2 x 3 channel passive mixer each with jack outs (Jacks to be mounted in a flat panel at the top of the console), 2 x AREGVCA as designed by Richarius, 2 x 4069 LFO ala scott gravenhorst (modded for 9v), 1 x 4040 divider (only 5 outputs/divisions utilised). Also since this picture was taken a week ago it also now contains, 1 x passive LP filter controlled via LDR, 4 x 4093 gated oscs, 1 x 4046 VCO, and a 4 input resistance summer/CV mixer.
Not 100% as to what the final modules are to be as yet, I may include another shift register, another VCO and I'd quite like some form of active filter in there...but then I'd like more AREG's...a Sequencer, more oscs...more logic gates, a pseudo ring mod.....the list is endless!"
YouTube via rdbartlett | November 16, 2010 | 0 likes, 0 dislikes
"My first real lunetta. The case is an old PA amp. Top left is a 4093: 4 gates and 4 oscillator outputs. Below that is a 40106 with 4 oscillators with different ranges. Next along is a 4040 with an input and the first 3 outputs (1/2, 1/4, 1/8), then the 8 green knobs are for a 4051-based tone sequencer. Beneath them are 2 XNORs. Then on the right is a 4069 filter with just the LP output and a 4-input mixer.
"Two CMOS chips interact to form this great 16 step control voltage sequencer. The CD4029 makes this more than your average Baby10. It's a crazy high performance thingy with a difference.
"I recently got a new phone that shoots decent video, so I figured I'd try to post something while testing it out.
This is where the ideas for new marsynth products come from: my modular system. This system is entirely hand made by myself, and a majority of the module designs are originals as well. Most marsynth products are simply derived from various patches.
In this video, I'm testing out an adaptation of the classic buchla 292 low pass gate."
"This is a one take recording session with all the modules on the board beeing used.
The audio was recorded seperately in ableton live, no editing, just a springreverb effect added for a little depth."
"I finished these "drum pads" quite some time ago...never did do an update.
This is the Thomas Henry designed Quad Bass++ drum voice board and some "Leapfrog Alphabet Drums" I hacked to use as drum pads.
I'm no drummer - this Vid will prove that.
I can blame the short wooden dowels that I stuck a grommet on the end for sticks....Which is the only reason I dare show this in public. "I was the aweful sticks maaaan!"
In this clip it is used to play 3 different versions(2x XOR and 1xNAND gated output) of the melodygenerator in a sequence. Very rough with only resistor mixing into a stereo speakerset and directly recorded with camera"
"I've added some logic gates and the melodygenerator finally got off the breadboard and onto the main board.
What you see from left to right: 4040 divider(red), 4017/4051 Melodygenerator(blue), 4051 multiplexer(green), 4015 shift register(yellow), 4024 divider(red), 4011 NAND gate(yellow), 4030 XOR gate(yellow).
Outside of the picture there is a 40106 quad oscilator to provide the clocks and audio signals and there is 1 starve pot for the board and 1 for the quad oscilator on the breadboard.
The video is mostly a free running patch with me using the starve-pots to control the power to the board and oscilators, it gets a little wild sometimes :)"
"This is the first run of my lunetta, a simple cmos modular synth. What you see left to right: 4040 divider, 4051 multiplexer and a 40106 quad squarewave oscilator.
"Attempt at playing the thing, although it feels more like it's playing itself :). What you see left to right: 4040 divider, 4051 multiplexer and a 40106 quad squarewave oscilator."
Lunetta 1, adding a shift register and DAC
JvGrieken — June 12, 2010 —
"I've added a 4015 dual shift register to the board and used a breadboarded r2r ladder and VCO to try making some melody. Not really happy with the results yet, but a better VCO might do the trick."
"This is a general overview of what my current setup looks like. By building the patching interface right onto the board I'm able to fit a lot of logic blocks in a very small space.
"I just got done building this drum machine - and this is one of the first patches I've done with it.
In the video I'm experimenting as I go -so you are watching my learning curve...
The Thomas Henry design "Bass ++" circuit is being sequenced by CMOS logic - Shift registers and counters to create the beats - and to provide control voltages through an R/2R ladder (a sort-of basic digital to analog converter) to change the pitch of the drums. I expect to be able to create very complex, not quite random beats with this in time... and of course simple beats are....simple.
The "Quad Bass ++" board is available through Electro-Music.com in the DIY forum.
More of my synth projects at www.sdiy.com/RFeng"
"Cos I'm too lazy to program sequencers, I mean come on pushing buttons & working out what "sounds good" is hard work, I figured an easier way to do it is to let some binary equations do the decision making for me, that way if the result is crap I can blame the machines... right?
Anyway. The 4089 is a 4 bit digital rate multipler that provides an output pulse rate that is the clock-input-pulse rate multiplied by 1/16 times the binary input.... Its an old chip that isn't as easy to get as many of other 4000 friends, mostly because these days I think sane people use PICs to "perform arithmetic operations"
I'm sure a tiny amount of code could do what I'm doing in this vid, but, I only use computers to look at pictures of other peoples synths ;-P
The module in the middle is the Pattern Gnerator, the four switches set the binary input number & it has a clock & clear input. The other two modules are the Clock Divider (D)Mux on the right & the Varilogic II on the left."
Neural Pattern Generator Pt. 2
"Same basic set-up, but now the Pattern Generator is getting a Clear pulse from the 512 division of the main clock. A little bit of Long Division always helps.
I don't alter any of the logic or clock settings this time, just the sound generators & modifiers.
After I've built the "Odd" version of the mux I'm going to do another pattern generator but with logic inputs instead of switches :-D
As usual, sorry about the damned bird noises!!! I swear I don't even notice them at the time, the mic in this cam. appears to be optimized for 'sunnyday chirping' frequencies!"
"demo
not finished
real small
hurts my brain real bad to wire it up
4049, 4011x2, 741, 4017x2, 4024
14 pots - 4 switches, 11 leds, 2 jacks
size of smokes
"I didn't know if the switches for the Jam Inputs would work with SPST switches... but the first one did, so I wired the rest up & everything works great!!
As usual Red = Output, Black = Input.... this is just a little frame / panel I use as a wiring jig but I'm really liking the layout."
4018 / 4029 Lunetta-esque Sequencer - Working!
"this is like a modular module... kind of a sequencer / clock / divider sandbox.
The top row handles interfacing to analog voltages; on the left is a simple comparator (In & Out) so any old voltage, LFO, Envelope etc. can be used to drive the CMOS chips. The next 5 bananas are a simple, single op-amp R2R digital to analog convertor so the outputs of the counters can drive a VCO etc.
The bottom row is the CD4029 , with a clock & direction input - the latter is really cool & can be used to 'loop' the counters.
The two middle rows are the in, out & controls for the Divide by N Counter. I have set-up switches for the Jam inputs so a pulse on the Preset Enable input with set the output states according to the switch settings making it a little like a regular sequencer but with the"
"This is a little demo I came up with, I decided to narrate this because not alot of synth videos really have explainations. If you would like to hear the unnarrated audio, it is available here http://www.bitkins.com/ruin/lune2.mp3
it's nothing special, just a quick patch; but the sounds that can come out of this small setup are still quite great. fun to play around with the combinations.
the electro-music forum i referred to is here: http://electro-music.com/forum/index...."
via http://diysynth.blogsport.de/
