Wednesday, 20 July 2016

Deluge effects - filters & EQ



You can apply effects at the
1. Clip level (Kit & Synth level)
2. Song Level

Effects are available via the grid  shortcuts Or using the select knob

The Total Effects available include:
Volume, panning, HPF, LPF, Envelopes, Saturation , Decimation, Bitcrushing, Modulation (Mod FX)
EQ, Reverb, Delay, Stutter.

Synth Level
Osc type, Oscillator Volume,  HPF, LPF, Amplitude Envelopes, Saturation , Decimation, Bitcrushing, Modulation (Mod FX)
EQ, Reverb, Delay.

Kit Level
Volume, HPF, LPF, Decimation, Bitcrushing, Modulation (Mod FX)
EQ, Reverb, Delay.


Song Level
Modulation (Mod FX)
EQ, Reverb, Delay.Volume, Reverb,
HPF, LPF, Decimation, Bitcrushing,
Stutter


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Filters
The deluge has 2 filters HP & LP
To access the filters:
1. Enter Clip view
2. Shift
3. Press the relevant shortcut pad
4. Turn the select knob.

There are just 6 button/effects, three for each filter
As of Version 3, the HPF slope doesn't work .. maybe a later revision ?

The short cuts work in clip mode, but don't seem to work in song mode.

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EQ - Equalizer

 

There are 2 ways to adjust EQ
a. The short cut pads.
b. the [CUTOFF / RES] affect button & upper gold knob


Short Cut pads
Just 4 buttons for bass & Treble. (nothing for mids)

BASS
AMOUNT: 0-50. 25 is central, > 25 to boost, < 25 to cut.
FREQUENCY: 0-50 Position to boost / cut across the bass range.

Treble
AMOUNT: 0-50. 25 is central, > 25 to boost, < 25 to cut.
FREQUENCY: 0-50 Position to boost / cut across the treble range.

To access the Eq:
1. Enter Clip view
2. Shift
3. Press the relevant shortcut pad
4. Turn the select knob.

The short cuts work in clip mode, but don't seem to work in song mode.

 [CUTOFF / RES] affect button & upper gold knob

1. Enter Clip view
2. Press [CUTOFF / RES] affect button
3. Press UPPER gold knob to cycle between LPF, HPF & EQ
4. select EQ by releasing the control.
5. Turn (UPPER) to change TREBLE band amount or turn (LOWER) to
    change BASS band amount for the sound selected.

Note:
You can effect individual notes or the whole kit
Press [AFFECT ENTIRE] to affect the entire kit.
Turn (UPPER) to change TREBLE band amount or turn (LOWER) to
change BASS band amount for the entire kit selected.

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Tuesday, 19 July 2016

NonLinearCircuits - Dual Drums Build notes.

These are my build notes for the NLC Double drum module.
Andrew did include the Dual Drum in one of his 4U drum panels


I plan to put this in with my Buchla. I don't have a face plate so will make that too.
From Andrew's notes:
"The core design was originally (used) in a Japanese DIY
magazine from the late 70s and was intended as a standalone, self
—contained device to be used with a drum kit. 

The cool thing about this module is that it uses an envelope detector
so most input signals should trigger this.

 firstly the virgin PCB.




I usually solder the SMDs first ... to both sides of the PCB.




The 22n SMD should be a 22k resistor?



BC547 --- NPN transistor - four needed --- the unlabeled trannies on PCB
BC557 --- PNP transistor - just two needed.... marked as pnp on the pcb.
Diodes - I'm using 1N414s



The unmarked caps are for the decoupling caps - using 47nf ceramics.

Time to make the panel. It's something a bit out of the square, ..... a half size Buchla panel.


The rear of the panel.



The 1k LED resistors seen to work fine.


First tests:


Some useful links:
1. Andrew's build notes.
2. Drum Panel (8)
3. Youtube 1 - Drum 
4.  Youtube 2 - Dual Drum Module
5. NLC Blog 1 - Dual Drums & Dr Go Go 
6. Youtube 3 - Dual Drums & Dr Go Go 
7. NLC Blog 2 - Dual Drum Module

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++++ My NLC index +++++++

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You can find more NLC builds here.
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Monday, 18 July 2016

303 style sequencers

 Trying to build a modular 303  is tricky.
The TB 303 is really the sum of many parts.
Everyone goes on about the filter, however without a sequencer which can do accents, ties & slides 
you won't be able to get the real feel.
 
This search really is like a dog chasing its tail.
If you want a real 303 sound, best to get a TB 303. 
Building a modular 303 will make something different -- but that might be a good thing.
 
Accent - extra emphasis(sometimes velocity) on that step

Tie - tying two steps together to create a longer note. 1/8th note tied to 1/8th note = 1/4 note etc.

Slide,glide,legato,portamento - similar to a tie, but slides the pitch from the first note to the second one.

 
 
Slew. You will need to do some work with slewing certain notes to nail the acid sound, while leaving others unaffected. You can do this with a 2-way sequential switch and a slew (e.g. Maths, Function) or you can do it on your sequencer if it supports glide/portamento.

Here are some suggestions:

1. Chronovore, 24HP CV/Gate Sequencer
    Michigan synth works. 
    This really does everything -- Ties, slides, accents

 
2. Acidlab Autobot -
    Works mighty fine with the M303 but also with other modules. Includes accents and slides
    just like the original 303. 

 
 
3. Stepper Acid
     16 step, slide, , swing, 
      Adjustable clock sync input and output
       Includes: 24PPQN (Sync24), 48PPQN, 96PPQN and 4PPQN (one note per pulse)
 

 
 
4.  Seek - copper traces
     64 steps.
     CV/gate sequencer with legato and an accent output. 
     Separate gate and accent outputs with per step legato, accent and rest
 

 
 
5. GMSN  - Pure Sequencer
    8-step sequencer with direction, range, clock in/out, pause, reset, slew and
    has gate outputs per step.

 
 
6.  Klee.
     Over kill ???
     Has glide in abundance.
      



7. Metropolis - Intellijel
    The slide functionality is a constant time portamento very similar to the Roland TB303 
    (unlike most synths/sequencers that use constant rate portamento) which produces a very musical 
    and interesting result. 
 

8. Moog Mother 32
    You can create both Ties (duration) & slides 

9. Erica synths pico SEQ
    Pitch Slide function on selected steps. 16 steps. 
   There is also a step merge function which is similar to a tie I think. ?
   compact- just 3 HP
   Despite the small size it’s easy to program and most importantly – 
   up to 16 patterns can be saved in memory and instantly recalled.
   

10. Bastil - popcorn.
     10Hp 
      Has slides. Just 8 steps
 
11. Super 16             
      per-step glide/portamento
      up to 64 step sequence length
      Tie ??
 

12. Korg SQ-1
      the korg SQ1, has slides and 2 gate outputs, so you trigger also accented notes.
       Only 8 steps if you want to trigger accents.
 

 
13. Black Sequencer- Erica
       ratcheting, step repeat, glide per step, merging steps (ties)
 
14. Beatstep Pro
      can tie/ slide nicely
 
 

    
 
 
     
   

Saturday, 16 July 2016

Expert Sleepers Disting Mk 1

 Some notes on my Disting Mark 1.
I think this also applies to the Disting Mark 2
 
To pick an algorithm use the S knob. 
A & B are inputs
X & Y are outputs

Z is a CV controllable setting for each algorithm. 
It's parameter changes depending on the algorithm.

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The 16 different algorithms:
1a Precision adder
1b Four quad Multiplier - ie a VCA or ring modulator
1-c Full-wave Rectifier
1-d Minimum/maximum
 
2-a Linear/Exponential Converter - good for Hz/V scale conversion
2-b Quantizer 
2-c Comparator 
2-d Dual Waveshaper 
 
3-a Sample and Hold / Noise
3-b Slew Rate Limiter 
3-c Pitch and Envelope Tracker 
3-d Clockable Delay/Echo
 
4-a LFO 
4-b Clockable LFO 
4-c VCO with linear FM 
4-d VCO with waveshaping 
 
 Links

 

 

 

 

 

 

 

 

Polivoks filter demo

 Some demos of a vintage polivoks and eurorack "clones"
 


Great filter
 


Blue Lantern LM4250 VCF

Monday, 11 July 2016

Rosh Hanikra - Bridge & railway tunnel / grottoes -israel

Rosh HaNikra or Hanikra (Hebrew: ראש הנקרה‎, lit. "Head of the Grotto"


This is near the border between Israel & Lebanon.








The gottoes are formed formed by sea action on the soft chalk rock.






The tunnels were built by the British for the Haifa-Beirut railroad line, and in 1968 a second one was dug, both connecting the grottoes with each other and allowing access (currently: only exit) along the former route of the British railroad. (wikipedia)







The Cable car is situated very close to the Lebanese border.
Apparently, it's the steepest cable car in the world, ascending at a gradient of 60 degrees









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