sem xoxos.net

SYNTHEDIT MODULES:

These modules are offered as they are made available and include previous versions for compatability.

download april 2009 sem update

An assortment of new modules faster to add as a group :)

5bpfs	5 band pass filters, 5 in/outs
5bpfsa	5 band pass filters applied to one signal
bwg9	9 band banded waveguide
decimals5	separate outputs for 5 decimal places
flow switch4/8	outputs volts for flow control for last gated input
latch3	output goes high on clock pulse after gate
latch4	10v output goes to 0v on gate until next clock pulse
m-s	simple 1st order mass-spring
rnd mix/rnd sel	pulse driven randomised many>1 modules set by % value
stoq0	stochastic impulse train generator
stoq1	above mk. II

download dsp pack

algorithmic:

seed4	generates recallable sequence of seed values
seed6	generates recallable sequence of seed values
seeds4	generates 4 seed values
seeds8	generates 8 seed values
seeds12	generates 12 seed values
seeds16	generates 16 seed values

clocks and counters:

clock1	simple pulse clock with reset pin
clock2	pulse clock with randomisation
count	counter with gate and reset pins
count3	counter adds interval, loop, wrap, and start pins and loop pulse out
count4	adds bounce mode, improved
regular	outputs a pulse for every nth pulse received
regular2	adds ability to limit number of pulses output until reset
segments	similar to regular with randomisable increment value
wakegui	outputs a pulse when input signal changes with rate ceiling

effect:

accum	created for tracking the speed of joystick movement. output voltage increases with modulation.
allpass	1-pole allpass to complement native 2-pole (frequency dependent phase response - view sawtooth osc with scope)
allpass res	unoptimised. simple multitap delay with damping and allpass for easy resonance modeling.
cos	unoptimised. simple cosine module.
drift	smooths modulation with separate 'down' and 'up' rates
plate1	simple rectangular algorithmic reverb. denormals :)
softsides	independent high and low limiting (limit = 1v past threshold)
softsides2	adds variable squishing amount
spring1	simple spring reverb emulation. also denormals :)
verb5s/6m /8m/10apm	four simple algorithmic reverbs. not the best but perhaps useful somewhere

envelopes:

env1	a simple 0-10v when triggered. my first sleeping envelope so hopefully okay.

logic:

gate switch	2>1 control voltage switch operated by two gate pins
gate toggle	toggles cv signals between two destinations
latch	outputs pulse on first gate on or after reset. must be reset before new pulse
latch2	output stays high on gate until reset
NO gate	outputs 10v if first pin is > 0v unless 2nd pin is > 0v
toggle	gate switches 10v signal between two outputs

oscs:

brush	impulse cluster modeler
gravity	attractor based oscillator
msres1	1st order mass-spring resonator (creates decaying sine)
msres2	2nd order mass-spring resonator with reflective bounding for modeling impulses and percussion
msres2sync	adds sync pin
msres3	3rd order mass-spring resonator (no limiting)
msres7	7th order resonator, perhaps useful for bell synthesis
noise3	syncable noise source (clips)
noise4	syncable noise source (doesn't clip)
noise5	syncable cz101 style noise source (pulse output)
noise6	syncable sawtooth oscillator with randomised frequency per wavecycle
noise6si	as above with sine waveform
noise6sq	as above with square waveform
osc7sq	7 low-cpu squarewave oscs for analog hihat emulation (hipass for 808)
perfecto	2 cross-modulating oscs with very high cpu (my first for audio)
t osc	attractor based oscillator

sequencing:

phase seq	produces gate signals for 8 phase locations (Phase Seq VST)
pulse to gate	transforms pulses into timed multitriggers
serial	an indexable 16 step sequencer
stepseq	a clocked 16 step sequencer with reset to step
word seq1	passes up to 12 input voltages at specified times, for sequencing phonemes

special:

cz101ms	converts 0-99v to cz101 envelope times
volts to note info	splits pitch voltage for note name animations

download waveguides

boing	bowed string waveguide
brush	impulse cluster modeler
cylinder33 *	waveguide drum module
fauna	fauna vsti dsp bore
kl tract *	kelly-lochbaum vocal tract module
oscine tract	songbird vocal tract waveguide
pling peq	plucked string waveguide with inline parametric eq
reed5c	1st order reed with 1 register hole and inline parametric eq
snare1 *	cylinder33 with 4 'snare' vectors
sym5p	5 channel fdn with parametric eq

Donations via paypal are appreciated!

WAVEGUIDE PACK NOTES

* These sems can produce > 100% feedback which can create very loud signals very quickly. A limiter is recommended for the signal chain when patching and building with these sems.

   I have not distributed the .se1 files associated with these sems because they generally contain many commercial 3rd party sems. If you have any questions regarding input values, please use the contact page.

   Use of waveguide sems in commercial releases is permitted only with a credit to www.xoxos.net in the documentation or on the product webpage.

   Source files for all sems are available on request.

CREATING YOUR OWN SEMS

   This is how to set up the SDK with Borland's free compiler, Free Command Line Tools:

   Place the synthedit SDK folder inside ..\Program Files\Synthedit\

   Inside the SDK folder, create a shortcut (right click > new > shortcut) to cmd.exe (the DOS command window). If your XP install is like mine, the 'Target' field is %SystemRoot%\system32\cmd.exe

   To create a sem, open the bc_make.bat file (Borland Compiler Makefile) with Notepad and replace 'se-gain' with the name of the module you wish to create.

   Edit Module.cpp with Notepad to add your code and Module.h (header) to add your variable declarations.

   If you don't already know C++, I recommend "C++ A Beginner's Guide" by Herbert Schildt, currently $8 to $16 at Amazon. The first 300 pages are enough to implement audio processing.

   To compile a module, double-click on the shortcut to run the command window. To go into a folder, type cd foldername [enter] and to exit a folder, type cd ..\ [enter]

   Navigate into the folder for the module you want to compile and type bc_make [enter]

   This performs the same action as executing the bc_make.bat file by clicking on it.

   The DOS window will display error messages or a confirmation that the file has been created and copied successfully. If it's a simple module, the whole process might not take you more than two minutes.

   Here's a replacement for the default background useful for positioning GUI elements.

PDF of physical modeling algorithms

   'Elements of Physical Modeling' presents elementary code examples that have worked for me (they're not guaranteed beyond that). These routines can be combined with an elementary knowledge of coding and any sdk to produce waveguide acoustic models.

Elements of Physical Modeling