100SILEX, de 0 à 100 s: shape
1483 MUFF WIGGLER :: View topic - 3 new drumsample packs by WaveShaper

https://www.muffwiggler.com/forum/viewtopic.php?t=138896&highlight=

1319 therevox : custom musical instruments
Inspired by the Ondes Martenot s au ruban controller, the ET-4 is controlled by moving a finger along a reference keyboard shaped to provide tactile feedback. Dual pressure sensitive intensity keys control the amplitude of the ET-4 s two independent analog oscillators. Combined with a filter, white noise generator and internal spring reverb the ET-4 is an expressive and versatile performance synthesizer.
http://therevox.com/

986 Arduino Blog » Blog Archive » CHEAP, FAT and OPEN
synth Jacob Remin, at CIID will present on August 27th, his Arduino-compatible sound synth. There are many projects out there aiming musicians that use Arduino’s IDE as a programming platform, but Jacob’s wins them all when it comes to the PCB’s shape. Take a look at the picture here and explore his thesis’ blog for more information and videos where he shows the system at its full power. (c) 2009 Cheap, Fat, and Open by J. Remin As for today he hasn’t published the videos using the final PCB, yet. However you can get a sneak preview to how it will be to play with it at the prototype he hand-wired using bits and pieces from a Stylophone, an LCD, some buttons, and other parts.
http://arduino.cc/blog/2009/08/25/cheap-fat-and-open/

897 Generic Synth Preset Storage and Conversion
For my synths with preset storage and the ability to dump & load presets via midi sysex, I wanted to be able to feed the sysex of a synth into a software program which can display the sound parameters in a meaningful form, and convert the sound into the sysex format of any of my other presets synths The generic patch storage format must display meaningful values for the parameters (filter envelope amount = 1/2 octave, envelope 1 attack = 50ms, etc) and convert between these values and a given synth's sysex (as much as possible - resolution probably isn't good enough to get envelope attack to exactly 50ms on each and every synth, and envelope shapes vary between synths, etc). The storage format will also store the original parameters, using the "native" value range of each parameter (e.g. filter cutoff frequency between 0 and 127) as well as the original sysex program as an ASCII hex dump. Since I didn't find any software which could do this, I began writing my own in Java. I am concentrating on converting basic analog components; any on-board effects are not used.
http://www.nmrailrunners.org/synth/gpc/index.html

865 Evolver.html
Just Beautiful! What an amazing instrument! The DSI Evolver has the signature "old school" timbre down pat as well as being able to provide digital timbres reminiscent of the Waldorf Q. There's certainly a "rougher" side available as well with all the feedback implementation and controled distortion. Being able to make PM type plucked and blown sounds is just icing on the cake. Dave Smith should be commended for a job well done. Just have a look at the Panel Layout to get a taste of what this beauty can dish out - the controls are pretty much laid out in the form of a signal path graphic. Be sure to visit Dave Smith's Website! Evolver Sound Examples There are a lot of demos of the Evolver on the web showcasing the gutsy harsh sounds of this beast so I decided to post demos of some of my own patches as examples of the "softer" more "vintage" side of the Evolver's timbre. I make no apologies for these unpolished recordings - these are merely sound samples ;) Resonant Plucked Pad This pad shows some of the rich resonant nature of the filter. Soft Lead This is a simple analog brass lead patch. FM Pad A fun patch with lots of motion made using my "Audio-rate Filter FM" programming tip below. Warm Pad A nice bland-vanilla pad ^_^ What can I say? I love pads... For more MP3 demos showing the full gamut of sounds the Evolver and Polyevolver are capable of, please visit the excellent website of Stefan Trippler! The Definitive Guide to Evolver This rather in-depth guide to the Evolver goes places and does things a mere manual can't. This labor-of-love was crafted by Anu Kirk and with his kind permission, I am offering this fantastic resource right here in PDF format! A much smaller version (400K) is here but it dosen't have internal hyperlinks. Programming Tips Here's a fun repository of programming tips for the Evolver in all its incarnations. Please email me if you would like to add some. Fingered Wave Sequence Submitted by Dave Bryce. This brilliant technique has to be heard to be believed! Plus, its one of those cool things unique to the Evolver! This particular tip is so full of detailed information that it gets its own page! Audio-rate Filter FM Submitted by James Maier. Use the "Audio Mod" parameter in the Filter section to frequency-modulate the cutoff with the analog oscillator. Add resonance until the filter is just on the edge of oscillation then mod the cutoff with just a little triangle LFO set at a very slow speed. Amazing moving chorusing pad and lead sounds can be made this way. Fatter Bass/Pad Sounds Submitted by Mike Peake. Set the same sound in both channels (detuned saws, for instance). With the filters at the 24dB setting, increasing resonance cuts the passband as on the Moog filters. Set Envelope 3 to minimum attack, maximum decay and release, and sustain to maximum. This "creates" an offset, a continuous "on" signal while the keys are gated. Modulate one filters' resonance up (just one), or of the overall resonance level is high, us it to modulate one filters' resonance to its minimum. You get the resonant character plus the size of the non-resonant filter. Use Tri and Sine waves on that side too. "Warmer" Sounds Submitted by James Maier. The Evolver can make many ultra-bright and buzzy sounds due to its extensive feedback and distortion stages but sometimes people miss the subtler side of the beast. For a warmer sound use little or no distortion, close the filter just a bit and turn off the feedback and delay lines. I've managed to get dead-on Prophet5 timbres this way. Adding "Punch" Submitted by Mike Peake. Set the envelopes to linear, and use a Mod to modulate AmpEnv All by itself (lin through log responses with positive and negative self-modulation). This is of course fun on the filter envelopes as well. More Vintage Character Submitted by Mike Peake. Oscillator Slop, set at 5, doesn't come close to the Moog and other old-timer movement, so add slight (1 or 2) LFO to pitch modulations, with individual LFOs per oscillator, and a touch of LFO to LFO rate modulation. A tad of Envelope 3 to pitch helps as well. Don't miss out on the 12dB filter setting Submitted by Mike Peake. The 24dB setting has much more resonance, but the 12dB setting can sound nice and plucky, and do nice slightly fuzzy pads etc. DSI Evolver Waveshape Charts Below are charts I've assembled of the digital waveforms and their spectra as currently used in the DSI Evolver synthesizers. Originally these waves were unique to the SCI ProphetVS vector synth. I find these waveform/spectra graphics really usefull when programming sounds - maybe you will as well. Pay special attention to the spectra as this info is sometimes much more useful than waveshape in determining actual timbre - even before you hear what the waveform sounds like. These are designed to be downloaded (right-click & "save target as"), and printed at 300dpi on 8.5" x 11" pages - don't resize these images before printing or you will lose useful detail. Use them as a handy refrence. This information was cobbled together from various scattered sources (with very special thanks to Achim Gratz!). Any errors or omissions are my own. ^_^ HAVE FUN!!! Page 1 Page 2 Page 3 Page 4 As far as the origin of these waves is concerned, one of the original VS engineers, Chris Meyer, said: "The original waves for the VS were created three ways - extracting single-cycles from sampled sounds, using a custom additive synthesis program, and using a program Josh (Josh Jeffe, another VS engineer) slapped together called "Hacker" where you could draw the waveshape. These were fed straight from the computer through the filter and VCA of a Pro-One to figure out what they might sound like in a patch. And by the way, no PPG waveforms appear inside the VS - we had access to them, but in the end our consciences got the better of us. We did steal some waveforms from the Korg DW6000, but only by looking at the harmonic drawings on the front panel and trying to imitate them in our additive synthesis program." Modulation Matrix "Cheat Sheet" This chart shows all the modulation routing available on the Evolver. This same info is available in the manual but this can be printed on a single sheet of paper as a handy refrence! Evolver Wallpaper These I created just for fun and desktop "beautification" ;) 1280 X 1024 1024 X 768 800 X 600
http://www.carbon111.com/evolver.html

533 The Theory and Technique of Electronic Music
Contents Sinusoids, amplitude and frequency Measures of Amplitude Units of Amplitude Controlling Amplitude Frequency Synthesizing a sinusoid Superposing Signals Periodic Signals About the Software Examples Examples Wavetables and samplers The Wavetable Oscillator Sampling Enveloping samplers Timbre stretching Interpolation Examples Audio and control computations The sampling theorem Control Control streams Converting from audio signals to numeric control streams Control streams in block diagrams Event detection Audio signals as control Operations on control streams Control operations in Pd Examples Automation and voice management Envelope Generators Linear and Curved Amplitude Shapes Continuous and discontinuous control changes Muting Switch-and-ramp Polyphony Voice allocation Voice tags Encapsulation in Pd Examples Modulation Taxonomy of spectra Multiplying audio signals Waveshaping Frequency and phase modulation Examples Designer spectra Carrier/modulator model Pulse trains Pulse trains via waveshaping Pulse trains via wavetable stretching Resulting spectra Movable ring modulation Phase-aligned formant (PAF) generator Examples Time shifts and delays Complex numbers Complex sinusoids Time shifts and phase changes Delay networks Recirculating delay networks Power conservation and complex delay networks Artificial reverberation Controlling reverberators Variable and fractional shifts Fidelity of interpolating delay lines Pitch shifting Examples Filters Taxonomy of filters Low-pass and high-pass filters Band-pass and stop-band filters Equalizing filters Elementary filters Elementary non-recirculating filter Non-recirculating filter, second form Elementary recirculating filter Compound filters Real outputs from complex filters Two recirculating filters for the price of one Designing filters One-pole low-pass filter One-pole, one-zero high-pass filter Shelving filter Band-pass filter Peaking and stop-band filter Butterworth filters Stretching the unit circle with rational functions Butterworth band-pass filter Time-varying coefficients Impulse responses of recirculating filters All-pass filters Applications Subtractive synthesis Envelope following Single Sideband Modulation Examples Fourier analysis and resynthesis Fourier analysis of periodic signals Periodicity of the Fourier transform Fourier transform as additive synthesis Properties of Fourier transforms Fourier transform of DC Shifts and phase changes Fourier transform of a sinusoid Fourier analysis of non-periodic signals Fourier analysis and reconstruction of audio signals Narrow-band companding Timbre stamping (classical vocoder) Phase Phase relationships between channels Phase bashing Examples Classical waveforms Symmetries and Fourier series Sawtooth waves and symmetry Dissecting classical waveforms Fourier series of the elementary waveforms Sawtooth wave Parabolic wave Square and symmetric triangle waves General (non-symmetric) triangle wave Predicting and controlling foldover Over-sampling Sneaky triangle waves Transition splicing Examples Index Bibliography
http://crca.ucsd.edu/~msp/techniques/latest/book-html/book.html

510 How Social Media Has Radically Altered Advertising
Social Media started out as a bit of a novelty -- a playground for the geekerati. But it has taken hold as a game changing force that will reshape advertising at its very core. Business Lists,Channels,Lists,Social Media Lists,business,contributor,features,social media
http://mashable.com/2010/07/06/social-media-advertising/

406 Modular Synth
Modules included so far: Synthesizers.com power supply and interface MFOS VCO x 2 MFOS VC-LFO x 2 MFOS state variable VCF CGS Synthacon VCF CGS simple waveshaper x 2 MFOS VCA x 2 CGS valve/tube VCA x 2 MFOS ADSR envelope generator CGS psycho LFO CGS psycho LFO with switchable capacitors MFOS sample and hold Multiples Slew generator CGS drum simulator with modifications MFOS weird sound generator x 2 PAiA 6710 vocoder - this one is loads of fun!
http://www.nervoussquirrel.com/modular.html

404 FOLKTEK ARTS: Time Scape Wave Sequencer
A brand new masterwork by Arius Blaze. The "Time Scape Wave Sequencer" is a sampler, processor and synthesizer with a built in 8 step sequencer. The touch board controls the polyphonic synth part which can be fed through delay or any combination of thousands of possibilities for wave shaping as well as the possibility of having the shape altered in time with the sequencer.
http://folktek.blogspot.com/2009/11/time-scape-wave-sequencer.html

78 Mandelbulb: The Unravelling of the Real 3D Mandelbrot Fractal
TIMESTAMP 08/11/2009. The original Mandelbrot is an amazing object that has captured the public's imagination for 30 years with its cascading patterns and hypnotically colourful detail. It's known as a 'fractal' - a type of shape that yields (sometimes elaborate) detail forever, no matter how far you 'zoom' into it (think of the trunk of a tree sprouting branches, which in turn split off into smaller branches, which themselves yield twigs etc.).
http://www.skytopia.com/project/fractal/mandelbulb.html

67 The Audio Playground Synthesizer Museum
The Audio Playground webpages offer a virtual tour of the collection and shows some of the the electronic instruments and gadgets which have shaped popular (and not so popular) music through the years -- from the earliest innovations, to more recent toys. Enjoy!
http://www.keyboardmuseum.com/play.html

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