Analysis of information sources in references of the Wikipedia article "Polyphony and monophony in instruments" in English language version.
Description: Custom-built modular synthesizer system consisting of a three-manual controller with a pedalboard, ... Produced: Schematics completed December 20, 1974, assembly began in '75, and system finished in May '77. ... Manufacture: Don Lewis. Pre-MIDI 4-channel polyphonic keyboard designed by Armand Pascetta. Richard Bates served as chief engineer; ... The "Pascetta parts" of LEO — four Oberheim SEMs and two ARP 2600s controlled by Armand Pascetta's custom-designed keyboard ...
... I'm not the kind of circuit design expert that Bob Moog was. ... When I did Oberheim, I didn't consider myself a great circuit guy, so I had help. In one case part of the Oberheim module was designed by an engineer at ARP, and another was designed by an engineer at E-mu, by the guy who started E-mu ...", "Oberheim Four-Voice polyphonic synthesizer. ... in January 1975, I got the idea to put four or eight of these [little synthesizer] modules together with just a simple digital keyboard and have the first polyphonic synthesizer. And so I designed this module, it was already in existence when I made this decision, so it took me about six weeks to design this machine. ... a few months later showed it at the NAMM show, and the Oberheim synthesizer world was born.
There were two parts that led to the development of the Prophet-5. One was I already had a background in microprocessors, so I knew how they worked. In my day job, I was using microprocessors, so it was a real obvious thing to me to use a microprocessor to make a programmable polyphonic synth. The other thing is, we knew the people from E-mu systems, ... I had heard that they were involved with developing a new chip set where they had an oscillator integrated circuit, they had a filter circuit, and they had an envelope and a VCA. ...
CS80 was launched in 1976", "CS80 could almost be thought of as two polyphonic synths, because there are two independent 8-voice sections available.
... Introduced in 1975, the GX-1 was ... In 1973, Yamaha completed development work on a prototype codenamed the GX-707. Based on cluster voltage control, this instrument could be regarded as the predecessor of the Electone GX-1. ... As the flagship model in the Electone lineup, however, this prototype was conceived of as a theatre model for use on the concert stage. With a console weighing in excess of 300 kg and a separate board required for editing tones, it was not well suited for sale to the general public, and to this day is still considered a niche instrument.", "Why digital technology in an analog synth? ... It was thus clear that new control technology would be required in order to use a limited number of circuits in a more effective manner. ... This type of device was known as a key assigner, and it can rightly be called the predecessor of today's dynamic voice allocation (DVA) technology. Back in the early seventies, when tone generators still relied on analog technology, digital circuitry was already being put to use in these key assigners.
... I'm not the kind of circuit design expert that Bob Moog was. ... When I did Oberheim, I didn't consider myself a great circuit guy, so I had help. In one case part of the Oberheim module was designed by an engineer at ARP, and another was designed by an engineer at E-mu, by the guy who started E-mu ...", "Oberheim Four-Voice polyphonic synthesizer. ... in January 1975, I got the idea to put four or eight of these [little synthesizer] modules together with just a simple digital keyboard and have the first polyphonic synthesizer. And so I designed this module, it was already in existence when I made this decision, so it took me about six weeks to design this machine. ... a few months later showed it at the NAMM show, and the Oberheim synthesizer world was born.
CS80 was launched in 1976", "CS80 could almost be thought of as two polyphonic synths, because there are two independent 8-voice sections available.
... Introduced in 1975, the GX-1 was ... In 1973, Yamaha completed development work on a prototype codenamed the GX-707. Based on cluster voltage control, this instrument could be regarded as the predecessor of the Electone GX-1. ... As the flagship model in the Electone lineup, however, this prototype was conceived of as a theatre model for use on the concert stage. With a console weighing in excess of 300 kg and a separate board required for editing tones, it was not well suited for sale to the general public, and to this day is still considered a niche instrument.", "Why digital technology in an analog synth? ... It was thus clear that new control technology would be required in order to use a limited number of circuits in a more effective manner. ... This type of device was known as a key assigner, and it can rightly be called the predecessor of today's dynamic voice allocation (DVA) technology. Back in the early seventies, when tone generators still relied on analog technology, digital circuitry was already being put to use in these key assigners.
