MATRIXSYNTH

New Greg Surges TabulaRasa Fundraiser

Greg Surges has a new fundraiser for the TabulaRasa. You'll find links to videos there also captured in previous posts via the Greg Surges label at the bottom of this post. The following is the description captured for the archives.

"The tabulaRasa is a digital wavetable oscillator with voltage control of frequency, waveform selection, and the amount of interpolation between waveforms. The tabulaRasa consists of two components: a hardware synthesis module which can integrate into a modular synth system, and a software application which allows the user to create their own custom waveforms. These waveforms are then transferred from the computer to the tabulaRasa module through a standard SD card slot. A wavetable oscillator is a standard technique in computer music. The oscillator uses a counter (ramp wave) to read a memory array. The array is filled with pre-computed samples of the desired waveform. The memory index being read increases with the counter, and resets when it reaches the end of the array.

The tabulaRasa hardware module has three potentiometers and three control voltage inputs for each of the control parameters (frequency, waveform selection, and interpolation). The control voltage inputs expect a voltage range of +/- 5V, and the board requires a +/- 12V power supply. The potentiometer for each setting selects a midpoint from which the corresponding voltage input diverges.

The tabulaRasa software application allows users to create waveforms in three distinct ways: through manipulating breakpoints to set sample amplitudes, adjusting the strength of various harmonics, or by loading audio samples.

The first method, manipulation of breakpoints, allows the user to adjust 16 breakpoints of a waveform. Each breakpoint is represented by a slider, which can be raised or lowered with the mouse. The points between those breakpoints are interpolated, and there are six user-selectable interpolation types: linear, sigmoid, cosine, circular, exponential, and “Decimated" (a simulated bit reduction algorithm).

The harmonic method uses the same sliders as the breakpoint method, but instead uses the sliders to represent the amplitudes of 16 harmonically-related sine waves. From left to right, the sliders climb the harmonic series, and a harmonic will become more prominent as its slider is raised from the bottom of the screen. The waveform which results from these mixed waveforms is displayed.

Finally, using the “Load Sample” option, the user is presented with a file dialog box from which a short audio file can be selected. The Adventure Kid Waveform pack works perfectly, and is made up of 4300 free single-cycle waveforms.

Note: This fundraiser is for PCB/Microcontroller sets only, not complete kits."

"별리 Separation" by 佐藤行衛、尾上祐一(Ribbon Controller)＆山本耕一郎

Published on Dec 11, 2012 by TorigoyaSound

"별리 Separation"
written by Kim Soo-Chul(김수철)
performed by
Yukie Sato(佐藤行衛) - Vocal , Guitar
Yuichi Onoue(尾上祐一) - Ribbon Controller
Koichiroh Yamamoto(山本耕一郎) - Cajon

Live at Girl River Hall , Gwangju Korea
on March 18th 2012

Kim Soo-Chul's original version
http://www.youtube.com/watch?v=LBrSChb78Wk

u-he's Pedolski VA Soft Synth Updated and Released for Free

u-he or Urs Heckmann is the man behind the recently released and acclaimed Diva virtual analog synth.

"Podolski is a simple, CPU-efficient virtual analogue synthesizer. Basically a cut down version of FilterscapeVA with just one oscillator, one filter, one envelope and two LFOs, it also features a Zebra-style arpeggiator/sequencer plus chorus and delay effects.

Podolski's specialities are the Click parameter (emphasizes the filter attack) and its ability to seamlessly morph between three waveforms (WaveWarp).

Version 1.0 was released as a free gift for visitors to the u-he booth during Musikmesse 2005. Right after Musikmesse it went on the cover mount CD of the German KEYBOARDS magazine (later Sound & Recording). Podolski was u-he's first 'magware' offering, and was distributed with every issue until about 2009.

"Podolski has been refurbished with some new presets by Howard Scarr, has undergone a GUI makeover (two new skins) and supports a wider range of plug-in formats. A new English language manual is also included. Download Podolski for free from here (top right of this page)!"

Original Rev1 Prophet-10 in Prophet-5 Case

Note: links to listings are affiliate links for which the site may be compensated.

via this auction

CLICK FOR MORE »

Tiptop Audio Z8000 Matrix Sequencer

Note: links to listings are affiliate links for which the site may be compensated.

via this auction

"Specs:the z8000 matrix sequencer is a powerful modulation source in a compact package. the 16 knobs of the z8000 are accessed by ten sequencers with their own clock, direction and reset inputs. the ten sequencers areas follows:

four 4 step cv sequencers on the horizontal.
four 4 step cv sequencers on the vertical.
one 16 step cv sequencer on the horizontal.
one 16 step cv sequencer on the vertical.

with the z8000, you can simultaneously modulate many parameters in your synthesizer polyrhythmicly, with unprecedented motion. one knob affects all 10 cv outputs! imagine modifying 10 parameters from one knob,and all clock inputs can be driven at audio rates.

your synthesizer is modular, so your sequencer should be too. the z8000's open design allows you to create a custom sequencing environment to fit your personal needs. add clock dividers, clock sequencers,switches, trigger sequencers and logic gates to create a completely unique system.

controls:
16-knob matrix

inputs:
clock: 1 / 2 / 3 / 4/ a / b / c / d / 16h / 16v
direction: 1 / 2 / 3/ 4/ a / b / c / d / 16h / 16v
reset: 1 / 2 / 3/ 4/ a / b / c / d / 16h / 16v

outputs:
cv out: 1 / 2 / 3/ 4/ a / b / c / d / 16h / 16v

electrical specifications:
clock / reset / direction minimum voltage: 2v
cv out: 0v - 10v
sequencer type 4x4 h/v: hybrid analog/digital
sequencer type 1x16 h/v: analog
power: +/-12v or +/-15v
current: 70ma

mechnical specifications:
format: eurorack
width: 28hp
depth: 59mm/2"

ELKA Rhapsody 610 SN 1680

Note: links to listings are affiliate links for which the site may be compensated.

via this auction

"This machine sounds different from other string synths in that it sounds very haunting and the bass end sounds just down-right mean!!! The low end is deep and gravelly giving it this tremendous "growl" to it. It also has piano and clavinet sounds which can be fun and can really add to the texture of the strings/ viola,cello sounds or used by themselves. This synth also comes with it's original foot pedal and cable which work flawlessly!"

CLICK FOR MORE »