SYNTHEDIT
"TACSYNTH " (The Analog Cottage Synthedit Analog Emulator)
(Explanations of all modules functions)
CYC B: One-shot push-on switch for automated "cycle RST ".
Continued......
RST B: One-shot push-on switch for manual RST.
8 Steps Mini-Sequencer
This is just a simple 8 steps sequencer.
CYC S: One-shot push-on switch for automated "cycle RST ".
RST S: One-shot push-on switch for manual
RST.
Output/Signal Out : Push-on switch selecting the
normal output/inverted sequence output.
Mode : Toggle switch to select Binary Sequencer (Top LED is
“ON”) or Mini-Sequencer (Bottom LED is “ON”)
Seedable
Probability Algorythm (A-B)
Module created by Mr.Lance Putnam
INPUTS :
Gate Upon a positive zero crossing, the module will
decide whether to pass on the gate signal depending
on the probability.
Seed : Seed value of internal random number generator. It will
assign a random seed if set to 0.
Level : Range of action
Plant (RST) Reinitialize the random number generator with current
seed value. Not applicable if seed=0.
OUTPUTS:
Output The gate signal passed on.
Notes:
Seeding is useful if you want to repeat the same set of probabilities. In
a
nutshell, the seed determines the specific sequence of random numbers that
make the decisions for the probabilities.
If you are using a seeded sequence of probabilities you can restart the
sequence by sending a gate to the 'Plant' input.
ASeed : Seed value of internal generator.
ALevel : Frequency Range.
Cyc : One-shot
push-on switch for automated "cycle RST " (Plant Reset).
RST : One-shot push-on switch for manual RST
of the algorithms.
Output Selection : Selector for activating
Output A, Inverted Output A, Auto (Auto list values controls)
BSeed : Seed value of internal random generator.
BLevel : Frequency Range.
Cyc : One-shot
push-on switch for automated "cycle RST " (Plant Reset).
RST : One-shot push-on switch for manual RST
of the algorithms.
Output Selection : Selector for activating
Output B, Inverted Output B, Auto (Auto list values controls)
Henon Chaotic
Generator
Author: Lance Putnam
Description: The Henon equation, discovered by Michel
Henon, is a model of the
orbits of stars around their galaxies.
Henon Equation:
x(n+1) = 1 + y(n) - a * [x(n)]^2
y(n+1) = b * x(n)
The equation exhibits both chaotic and periodic behavior
depending on the
initial values of x and y and the two constants, a and b. This makes it
well suited for algorithmic composition and other musical applications.
So, if you ever wanted to make genuine space music, here's your chance.
INPUTS : Gate - Upon a positive zero crossing, the module will
do another another iteration of the equation. This
will only work if the module is in 'Gated' mode.
Reset - Start iterating over again at x0 and y0. Works on
positive zero crossing.
x0 - Initial x value. Any change will cause a 'Reset'.
y0 - Initial y value. Any change will cause a 'Reset'.
a - The constant 'a' in the Henon
equation. Any change will
cause a 'Reset'.
b - The constant 'b' in the Henon equation. Any change will
cause a 'Reset'.
Mode - Switch between 'Continuous' and 'Gated' mode.
'Continuous' mode will iterate at the sampling rate you
are working with (e.g. 44.1 kHz).
'Gated' mode will iterate upon receiving a gate signal.
OUTPUTS: x - This is x(n+1) in the Henon
equation.
y - This is y(n+1) in the Henon equation.
PARAMS : Normalize - When 'On' the outputs will be
normalized to a
max/min value of +5V/-5V, respectively.
When 'Off' output is normal values.
Notes: You are probably wondering "What is this thing good for?!" Here are
some
ideas:
- Use in 'Gated' mode in conjunction with LFOs for
algorithmic composition.
Control the pitch of notes with x and the volume or some other parameter
with y. You can also hook up an LFO to 'Reset' to play the same melody
periodically.
- Set to 'Continuous' mode and create some strange periodic noises by
playing around with a and b. Great
for industrial type sounds,
car engines, screeching, etc.
- Use an oscillator to trigger the gate at audio rates. This will give you
pitchable noise and other effects.
The behavior of the Henon
Map basically falls into 4 categories:
1. Chaotic - generates noise and periodic noise
2. Periodic - generates tones
3. Fixed or steady-state - comes to rest after a certain amount of
iterations
4. Unbounded - output goes to infinity (both outputs will go to zero
if this happens)
**My suggestion is that you play around with a and b to get the behavior
you
want and then change x0 and y0 to make slight modifications/permutations.
Don't forget that the solution set is infinite!
HenX0: Initial x value. Any change will cause a 'Reset'.
HenY0: Initial y value. Any change will cause a 'Reset'.
Ka : The constant 'a' in the Henon
equation. Any change will
cause a 'Reset'.
Kb : The constant 'b' in the Henon
equation. Any change will
cause a 'Reset'.
X and Y: Selector to switch between normal outputs (X) and (Y) and inverted
outputs
Rst : One
shot push-on switch for manual Plant RST
X output : Knob setting the output level of X.
Y output :
Knob setting the output level of Y
Gated/Continuous : Push ON/OFF Switch for selecting a Gated state
(Default = Gated)
Note :
Setting the switch to 'continuous' might overload your system !
Seedable Probability Clocks (C-D)
Module created by Mr.Lance Putnam
Description: Just a simple seedable probability
module.
INPUTS :
Gate Upon a positive zero crossing, the module will
decide whether to pass on the gate signal depending
on the probability.
p The probability that the gate signal will be passed
to
the output. 0V-10V = 0% - 100%
Seed Seed value of internal random number generator. It will
assign a random seed if set to 0.
Plant (RST) Reinitialize the random number generator with current
seed value. Not applicable if seed=0.
OUTPUTS:
Output The gate signal passed on.
Notes:
Seeding is useful if you want to repeat the same set of probabilities. In
a
nutshell, the seed determines the specific sequence of random numbers that
make the decisions for the probabilities.
If you are using a seeded sequence of probabilities you can restart the
sequence by sending a gate to the 'Plant' input.
CProb : Knob used to set the probability
seed of C.
Seed : Seed value of internal random generator.
Cyc : One-shot
push-on switch for automated "cycle RST " (Plant Reset).
RST : One-shot push-on switch for manual RST
of the algorithms.
DProb :Knob used to set the probability
seed of D.
Seed : Seed value of internal random generator.
Cyc : One-shot
push-on switch for automated "cycle RST " (Plant Reset).
RST : One-shot push-on switch for manual RST
of the algorithms.
MASTER CLOCK
Clock: Knob for setting the Master Clock
initial frequency.
Cycle : Knob for setting the automated
'cycle reset' impulse for various controls.(Seq,
A-B-C-D Probability Gen., Henon Gen.).
FM: Toggle switch to allow LFO 10 output to FM the Master Clock’s Initial
frequency.
4 : n (Bottom) : Push-on switch selecting the division
of the Clock's frequency by a factor of n (from 1 to 8) LED : Red Led showing the clock division output of Divider 8 C:
Push ON/OFF Switch for activating the Probability Clock C output
(this output is ORed to G1-4 output). G5-8
Out : Master toggle switch sending the various Clock outputs to gate
envelopes 5 to 8.: D:
Push ON/OFF Switch for activating the Probability Clock D output
(this output is ORed to G5-8 output) Note : In
order not to have a bad headache, I suggest that you use the Binaural audio
processor sparingly. ;-))
Are you interested in trying this
mono synth prototype configuration? mailto:analogcottage@yahoo.com
Rst: One-shot push-on switch for manual
RST of the Master Clock..
GATES DIVISIONS
D1 (Top Left): Selector to switch between initial clock frequency/ Clock
frequency divided by Divider 1.
D2 (Bottom Left): Selector to switch between initial clock frequency/
Clock frequency divided by Divider 2.
1 : n (Top): Push-on switch
selecting the division of the Clock's frequency by a factor of n (from
1 to 8)
LED : Red Led showing the clock division output of Divider1
2 : n (Bottom): Push-on switch selecting the division of the Clock 's
frequency by a factor of n (from 1 to 8)
LED : Red Led showing the clock division output of Divider 2
D3 (Top): Selector to switch between initial clock frequency/ Clock frequency
divided by Divider 3.
D4 (Bottom): Selector to switch between initial clock frequency/ Clock
frequency divided by Divider 4.
.
3 : n (Top) : Push-on switch selecting the division
of the Clock's frequency by a factor of n (from 1 to 8)
LED : Red Led showing the clock division output of Divider 3
LED : Red Led showing the clock division output of Divider 4
D5 (Top Right): Selector to switch between initial clock frequency/ Clock
frequency divided by Divider 5.
D6 (Bottom Right): Selector to switch between initial clock frequency/
Clock frequency divided by Divider 6.
5 : n (Top): Push-on switch selecting
the division of the Clock's frequency by a factor of n (from 1 to 8)
LED : Red Led showing the clock division output of Divider 5
6 : n (Bottom): Push-on switch selecting the division of the Clock 's
frequency by a factor of n (from 1 to 8)
LED : Red Led showing the clock division output of Divider 6
D7 (Top): Selector to switch between initial clock frequency/ Clock frequency
divided by Divider 7.
D8 (Bottom): Selector to switch between initial clock frequency/ Clock
frequency divided by Divider 8.
.
7 : n (Top) : Push-on switch selecting the division
of the Clock's frequency by a factor of n (from 1 to 8)
LED : Red Led showing the clock division output of Divider 7
8 : n (Bottom) : Push-on switch selecting the division
of the Clock's frequency by a factor of n (from 1 to 8)
.
Switches 1-2-3-4 : Selection of Dividers outputs to gate Envelopes 1-4
Switches 5-6-7-8 : Selection of Dividers outputs to gate Envelopes 5-8
Example : For a rhythm in 3/4 : select Divider 1 with a division by 3 and Divider
2 with a division by 4.
Note : Try adding new dividers to the above rhythm, to make it more complex.
MASTER OUTPUT SELECTION
G1-4 Out : Master toggle switch sending the various Clock outputs
to gate envelopes 1 to 4.
LED : showing the probability clock C events.
LED : showing the probability clock D events.
PATCH PROGRAMMER
Select an unused patch number in the bank.Proceed
in building your patch with the modules you want.. Tweak your sounds with great
care! Once you have set-up the sounds you want, you can save all knobs and switches
positions in the patch programmer. To do that, click on File copy + patch
number! .
CONTAINER
To respect the The Synthedit philosophy, the
whole structure of the synth has been put inside a
container . There is also a VnoPhones Binaural Audio Processor VST Plug-in,
with 4 different listening environments and a FreeVerbToo
module. For example, to change the settings of the Binaural module, unlock it, then click on the green arrow
pointing down (the default setting is "Lounge room")! That done, lock the module again.
and I will send you a copy of the source file.