Polyphonic meaning in music manual#
Polyphonic meaning in music portable#

It was developed under the collaboration with E-mu Systems. In 1974, E-mu developed the polyphonic technologies, and in 1977, released the 4060 Polyphonic Keyboard and Sequencer.

Polyphonic meaning in music portable#

It was succeeded by the portable Yamaha CS-80 (1976), which was successful and became one of the most popular polyphonic analog synths.

Polyphonic meaning in music manual#

Voice allocation technology was used to assign the limited 8-voices per manual into the notes. The Oberheim Polyphonic Synthesizer and Sequential Circuits Prophet-5 were both developed in collaboration with E-mu Systems. In the early-to-mid-1970s, the voice allocation technology with digital keyboard scanning was independently developed by several engineers and musical instrument manufacturers, including Yamaha, E-mu Systems, and Armand Pascetta (Electro Group). Patchable polyphonic synthesizer consists with three synths per key (totally 144 synthesizers), based on octave divider. Polyphonic ensemble keyboard consists with one synth per key (totally 60 synthesizers), based on octave divider Octave divider technology similar to Novachord was used. ДЄ forefather of octave divider synth and electronic organs.

Polyphony is achieved so long as only one of each note in the scale is played simultaneously. To produce a note one octave lower, the frequency of the oscillator is divided by two. The additional notes are generated by dividing down the outputs of these oscillators. Using an octave divider a synthesizer needs only 12 oscillators - one for each note in the musical scale. It uses octave divider technology to generate polyphony, and about 1,000 Novachords were manufactured until 1942. Novachord by Hammond Organ Company, released in 1939, is a forefather product of frequency divider organs and polyphonic synthesizer. Harald Bode's Warbo Formant Orguel, developed in 1937, was an archetype of a voice allocation polyphonic synthesizer. The earliest polyphonic synthesizers were built in the late-1930s, but the concept did not become popular until the mid-1970s. Monophonic synthesizers with more than one oscillator (such as the ARP 2600) can often be patched to behave in a paraphonic manner, allowing for each oscillator to play an independent pitch which is then routed through a common VCF and VCA. For example, playing a new note on top of notes already held might retrigger the volume envelope for the entire sound. The result is a synthesizer that can play chords, provided all the notes start and end at the same time ( homophony). Paraphonic synthesizers, such as the Roland RS-202 string machine or Korg Poly-800, were designed to play multiple pitches at the same time by using multiple oscillators, but with a common filter and/or amplifier circuit shared among all the voices. When only one key is pressed, both oscillators are assigned to one note, possibly with a more complex sound. When two or more keys are pressed simultaneously, the lowest- and highest-note will be heard.

These synthesizers have at least two oscillators that are separately controllable, and a duophonic keyboard that can generate two control voltage signals for the lowest- and highest-note. Well-known monosynths include the Minimoog, the Roland TB-303, the Korg Prophecy, and the Korg Monologue.Дuophonic synthesizers, such as the ARP Odyssey and Formanta Polivoks built in the 1970s and 1980s respectively, have a capability to independently play two pitches at a time. This does not necessarily refer to a synthesizer with a single oscillator The Minimoog, for example, has three oscillators which are settable in arbitrary intervals, but it can play only one note at a time. See also: Synthesizer Monophonic ДЄ monophonic synthesizer or monosynth is a synthesizer that produces only one note at a time, making it smaller and cheaper than a polyphonic synthesizer which can play multiple notes at once.