Son Of GX audio crush demo

video by Marc Brassé

"This video is specially dedicated to Alejandro Lobato Fernandez."

via http://www.brassee.com/instruments.html - be sure to his site for more.

"This is a heavily customized E-70 organ with the synth functions of all 3 orchestra sections (upper keyboard, lower keyboard, pedals) fully and independently programmable. Furthermore a 4th solo section has been added.

Although many people have compared converting Yamaha E-series organs into programmable synthesizers to turning them into CS80´s I have always looked much more towards the GX1 connection. The GX1 was the mother of all Yamaha CS´ and contained 1 analog solo synthesizer, 2 polyphonic sections and 1 bass pedal section. So how could the Son Of GX ever be really complete without the addition of such a solo synth?

I originally thought about converting an EX-1 but could not find one for reasonable money. So yes, theoretically this can still be outdone but on the other hand a personalized version like mine will be more unique. And more "compact". Even more homely.

Added to the V2 version:

1 Solo section with a monophonic. analog, fully programmable, aftertouch sensitive synthesizer but also has its own independent organ section. I reduced a CSY 2 organ into a version that only has an upper keyboard, containing an analog mono synth but also the full upper organ section. Even the original GX1 did not sport that!
Off course the controller box now also contains all necessary controls for the mono synth.
Furthermore 3 analog audio crushers have been built into the programmer. These can be patched into any of the 6 available outputs and add effects ranging from mild coloring, via ring mod type sounds to full audio mayhem.
In short: The Son Of GX has become even more expressive and capable of experimental sounds!"

MARS Musical Audio Research Station Iris Farfisa Bontempi - Ares Software

video by Museo del Synth Marchigiano

You can find an additional post from 2012 featuring the MARS Synthesizer here.

"In this video we demonstrate how the Ares software allows you to program the Mars card, Isa card inserted in the computer, connected via Scsi connector to the Ics816 audio output card.

The Musical Audio Research Station (MARS) is a programmable specialized digital machine for real-time audio applications which has been entirely developed by the Italian Bontempi-Farfisa research institute IRIS.
The MARS workstation is composed of:

• one or more sound boards, called NERGAL connected to one or more audio units;
• a PC running the graphical interactive development environment called ARES.

The first version of MARS, which has been presented at the ICMC92 was running on Atari computers.

The sound generation board is a full size standard IBM ISA card running at a sampling rate of 44.1 kHz.

The board may be divided into three main sections: DSP, control and mixer sections.

The DSP section contains two dedicated IRIS DSPs called X20 with their respective program and sample memories. These DSPs are memory mapped onto the microcontroller memory area.

The X20 is a fully programmable DSP. Its architecture is highly parallel and allows pipelined operations.

Its internal arithmetic is 2’s complement fixed point with a 16 x 16 bit multiplier and a 24 bit arithmetic and logic unit.

Each X20 has two blocks of internal data memory which may be addressed in parallel. It also contains a 512 x 64 bit words of external program memory, and may access to external sample memory. The sample memory is supported by SIMM modules with 4 up to 32 megabytes of DRAM.

Each X20 provides four audio input channels and four audio output channels. The audio signals are managed on 16 bits. The X20s may be used in parallel or in serie, by sending the four outputs of the first one to the four inputs of the second one.

The control section is managed by a proprietary real-time operating system, called RT20M, running on a MOTOROLA MC68302 microcontroller. The RT20M manages all the MARS objects described previously, and all their interactions with the DSP section, the mixer section and the external world. It also controls any communication through the three ports available on the board: MIDI, RS232, and a special parallel one for high speed connection to the PC’s ISA bus.

The mixer section controls a set of predefined audio mixing operations among boards and audio units.

Each board have one connector to/from the audio-unit, and four connectors (two inputs and two outputs) which allow multi-board links. This last feature allows to create a MARS boards network with a parallel, a serial or a mixed configuration using one or more audio units.

Two types of IRIS audio units are available for NERGAL: low-cost and professional.

The low-cost unit is a small external box (1/3U) with two monophonic input lines, four monophonic output lines, and one stereophonic headphone output.

The professional audio unit is a 2U standard rack module. It is modular and may pilot up to 8 input/output analog channels and 8 input/output digital channels. Each unit can be shared between two different NERGAL boards."

Rare Wolfgang Palm Vintage 1975 PPG Modular Synthesizer For Sale

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

via this auction

Check out the groovy aesthetics of the user manual font & art below. Kind of interestring. It was the 70s...

"History

Wolfgang Palm is a German musician and inventor who was the founder and owner of Palm Products GmbH (PPG) and the inventor and creator of various pioneering technical designs for analog and digital synthesizers. He is widely acknowledged as the father of digital synthesis and as a trendsetter in the use of computer technology in the making of electronic music.

Palm's interest in synthesis technology began as a keyboardist in various local bands in his hometown of Hamburg, Germany. His namesake corporation began operating as early as 1975, manufacturing modular synthesizers in small numbers for electronica act Tangerine Dream and other musicians.

Palm is arguably most famous for the invention of wavetable synthesis, a concept which he developed in the late 1970s when he created his Minimoog-like synthesizer - the 1020 - featuring digitally controlled oscillators instead of the voltage-controlled oscillators that his 1002 synthesizer and all other analog synthesizers of that time were using. He also created the 360 Wavecomputer that would later become the renowned PPG Wave series. Palm's design was the impetus for the creation of the highly successful PPG Wave synthesizer, which was used by numerous bands throughout the 1980s and beyond.

THE PPG MODULAR SYSTEM

100, 200, and 300 Modules
2 Cabinets 1 Keyboard
Each Module Hand Labelled by Wolfgang Palm


Cabinet one consists of :

3x 301 Voltage Controlled Oscillator
2x 104 Low Pass Filter
1x Oscillator with 3 Oscillators and Oscillator Driver
1x Wolfgang Palm Noise Generator
1x 217 Voltage Controlled Filter
3x 103 VCA
1x 309 Signal Mixer
4 x 109 Premix Interface
1x 111 CV interface/Reverb/Output Bass Treble/Power Supply

Cabinet Two Consists of:

3x107 Envelope Generator
3x 307 Dual Envelope Generator
1x 213 Step Sequencer
322 Duophonic Digital Keyboard

Notes: The keyboard comes with all the original German Manuals 230V Power supply and various patching cables

Users: PPG Synthesisers have been favored by a number of artists most famously the German Band Tangerine Dream / Klaus Schulze with such classic albums as Rubycon, Stratofear, Sorcerers"

Listed for $83,799.20 +$1,420.33Shipping

CLICK FOR MORE »

The Beatles - Here Comes The Sun (Isolated Strings and Moog)

J K

"Abbey Road 1969"

Wait for it...



The Beatles - Maxwell's Silver Hammer (Isolated Electric Guitar and Moog)

J K

Audio comes in about :40 seconds followed by the Moog.