Vector synthesis implementations
There have been a number of different implementations of vector synthesis. These differ in what they use for the four sound sources, and what processing is done to the sound after the vector synthesis stage. The actual vector synthesis concept is identical.
Prophet VS vector synthesis
The Prophet VS used four digital wavetable oscillators as its four sound sources. The limitations, particularly the digital aliasing, of this design, coupled with its use of Curtis analogue filter ICs to process the mixed sound, gave the Prophet VS its distinctive sound.
Yamaha SY series
The Yamaha SY22 added to the Prophet's implementation of vector synthesis by providing two types of sound source. Each axis of the vector had both an FM sound source and a sample-playback source. Although it lacked any filtering, it added digital effects for processing the results of the vector synthesis.
Korg Wavestation
The Korg Wavestation went further still, allowing each of the four sound sources to produce not just a static tone, but a complex wave sequence, by playing back or cross-fading one wave after another.
Korg OASYS
The Korg OASYS workstation is one of the first synthesizers for over a decade to feature vector synthesis. It also features an updated form of wave sequencing, like the Wavestation. The Korg Kronos also features this synthesis.
Arturia Origin
The Prophet VS, a hybrid virtual instrument version of the original Prophet VS, features vector synthesis, as well as Arturia's Origin hardware synthesizer, which uses an automated mixer, the 2D Envelope.
A digital synthesizer is a synthesizer that uses digital signal processing (DSP) techniques to make musical sounds. This in contrast to older analog synthesizers, which produce music using analog electronics, and samplers, which play back digital recordings of acoustic, electric, or electronic instruments. Some digital synthesizers emulate analog synthesizers; others include sampling capability in addition to digital synthesis.
Frequency modulation synthesis is a form of sound synthesis whereby the frequency of a waveform is changed by modulating its frequency with a modulator. The frequency of an oscillator is altered "in accordance with the amplitude of a modulating signal".
Digital music technology encompasses digital instruments, computers, electronic effects units, software, or digital audio equipment by a performer, composer, sound engineer, DJ, or record producer to produce, perform or record music. The term refers to electronic devices, instruments, computer hardware, and software used in performance, playback, recording, composition, mixing, analysis, and editing of music.
An analogsynthesizer is a synthesizer that uses analog circuits and analog signals to generate sound electronically.
Wavetable synthesis is a sound synthesis technique used to create periodic waveforms. Often used in the production of musical tones or notes, it was first written about by Hal Chamberlin in Byte's September 1977 issue. Wolfgang Palm of Palm Products GmbH (PPG) developed it in the late 1970s and published in 1979. The technique has since been used as the primary synthesis method in synthesizers built by PPG and Waldorf Music and as an auxiliary synthesis method by Ensoniq and Access. It is currently used in hardware synthesizers from Waldorf Music and in software-based synthesizers for PCs and tablets, including apps offered by PPG and Waldorf, among others.
A rompler is an electronic music instrument that plays pre-fabricated sounds based on audio samples. The term rompler is a blend of the terms ROM and sampler. In contrast to samplers, romplers do not record audio and have limited or no capability for generating original sounds. Both may have additional sound editing features, such as layering several waveforms and modulation with ADSR envelopes, filters and LFOs.
The Yamaha AN1x is a DSP-based analog modeling synthesizer, produced by Yamaha Corporation from 1997 to 1998, and was marketed as an "analog physical modelling control synthesizer".
The Korg OASYS is a workstation synthesizer released in early 2005, 1 year after the successful Korg Triton Extreme. Unlike the Triton series, the OASYS uses a custom Linux operating system that was designed to be arbitrarily expandable via software updates, with its functionality limited only by the PC-like hardware.
David J. Smith is an American engineer and musician and founder of the synthesizer company Sequential. Smith was responsible for the first commercial polyphonic and microprocessor-controlled synthesizer, the Prophet-5, and later the multitimbral synthesizer. He is also referred to as the "Father of MIDI" for his role in the development of MIDI, now a standard interface protocol for electronic instruments and recording/pro audio equipment.
The Korg DW-8000 synthesizer was an eight-voice polyphonic hybrid digital-analog synthesizer 61-note keyboard instrument released in 1985. By the time of its launch Korg had already begun a common trend in 1980s synthesizer design: using numerical codes to access or change parameters with its predecessor - the Korg Poly-61, which was widely regarded as the company's first 'knobless' synthesizer. This was a move away from the heavily laden, complex control panels of earlier designs.
Polyphony is a property of musical instruments that means that they can play multiple independent melody lines simultaneously. Instruments featuring polyphony are said to be polyphonic. Instruments that are not capable of polyphony are monophonic or paraphonic.
The Korg Polysix(PS-6) is a six-voice programmable polyphonic analog synthesizer released by Korg in 1981.
The Korg Wavestation is a vector synthesis synthesizer first produced in the early 1990s and later re-released as a software synthesizer in 2004. Its primary innovation was Wave Sequencing, a method of multi-timbral sound generation in which different PCM waveform data are played successively, resulting in continuously evolving sounds. The Wavestation's "Advanced Vector Synthesis" sound architecture resembled early vector synths such as the Sequential Circuits Prophet VS.
Linear arithmetic synthesis, or LAsynthesis, is a means of sound synthesis invented by the Roland Corporation when they released their D-50 synthesizer in 1987.
Yamaha TG77 is the rack-mounted equivalent of Yamaha Corporation's SY77 synthesizer workstation. It, too, is a 16-voice multitimbral music (synthesizer) utilizing Yamaha's Advanced Frequency Modulation; Advanced Wave Memory; and the combination of these two systems, either by layering together or by modulating an AFM voice by an AWM wave, a synergy termed Realtime Convolution and Modulation Synthesis (RCM). The unit came into production in 1989, simultaneously with the SY77.
A synthesizer is an electronic musical instrument that generates audio signals. Synthesizers typically create sounds by generating waveforms, through methods including subtractive synthesis, additive synthesis and frequency modulation synthesis. These sounds may be altered by components such as filters, which cut or boost frequencies; envelopes, which control articulation, or how notes begin and end; and low-frequency oscillators, which modulate parameters such as pitch, volume, or filter characteristics affecting timbre. Synthesizers are typically played with keyboards or controlled by sequencers, software or other instruments, and may be synchronized to other equipment via MIDI.
The Evolver is an analog-digital hybrid synthesizer designed by Dave Smith and manufactured by Dave Smith Instruments. It was first released as a desktop version in 2002, then later a 37-key keyboard bearing the same synth engine as the Evolver desktop was also released. A polyphonic version of the Evolver, dubbed the Poly Evolver, was released in 2004 as a rackmount version, then a 61-key keyboard version of the Poly Evolver was released in 2005. The Evolvers were replaced by new high end models, the Prophet 12 and the Pro 2.
The Korg RADIAS is a virtual analog synthesizer and Vocoder, released by Korg in 2006. The RADIAS' MMT engine was based on the Korg OASYS synthesizer module, providing for several different synthesis methods, two of which may be combined in a single voice e.g. phase distortion synthesis can be combined with subtractive synthesis. The different synthesis methods employed by MMT represent the majority of methods used historically in other Korg synthesizers: digital waveguide synthesis Korg first used in the Korg Z1 and phase distortion synthesis was first used in the Korg DS-8. This flexibility allows for very realistic emulations of past Korg synthesizers, though stays away from trying to emulate the Korg M1 and the Korg Wavestation,. As well as using the in-built waveforms for the basis of sound creation, the RADIAS allows for the input of an external signal which may be routed through the various sound shaping devices. The RADIAS has a comprehensive matrix modulation specification and to further enhance a sound the 'Wave Shaper' module allows for various sound distortion effects.
The Korg OASYS PCI is a DSP-based PCI-card for PC and Mac released in 1999. It offers many synthesizer engines from sampling and substractive to FM and physical modelling. Because of its high market price and low polyphony, production was stopped in 2001. About 2000 cards were produced.
The history of home keyboards lies in mechanical musical instrument keyboards, electrified keyboards and 1960s and 1970s synthesizer technologies.
