However, several Casio models in the PG and MG product lines integrated the guitar, the hex pickup, and the converter as a single unit. This allows the guitarist to be unencumbered by an on-board converter. Usually, a cable connects the hexaphonic pickup to the converter. Software-based guitar synthesizers without any special pickups have appeared, featuring polyphonic audio recognition (recognizing polyphonic pitches of each string, and possibly able to distinguish combination of fret positions and strings). Though the term 'MIDI guitar' is sometimes used as a synonym, MIDI is not the indispensable feature of guitar synthesizers, especially after advances in DSP technology.

Guitar-synth using non-guitar controllers: guitar-like MIDI controllers.īoth types have advantages and disadvantages.

Guitar-synth using guitars: regular guitars equipped with special electronic sensors that actuate a synthesizer.

Later, the multi-effects type evolved into modeling guitar, and the other two types evolved into current devices.

Guitorgan type (using guitar with fretboard switches).Frequency-to-voltage converter type (using guitar with pickups).In the early days, there were three main types of guitar-synthesizers: Today's guitar synths are direct descendants of 1970s devices from manufacturers (often in partnership) such as Hammond Innovex and Ovation, EMS, Roland Corporation and FujiGen ( GR-500 and GR-300), Ludwig, Norlin Music and Maestro, 360 Systems, Ampeg and Hagström, Arp, Electro-Harmonix, Casio, New England Digital, Terratec/Axon, Starr Labs, Ibanez, Holt Electro Acoustic Research, Zeta Systems, and Yamaha.

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