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CV/gate
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<p>CV/gate (an abbreviation of <i>control voltage/gate</i>) is an analog method of controlling <a href="/facts/Synthesizer/NrmdVrPa">synthesizers</a>, <a href="/facts/Drum_machine/ltR2xFt3">drum machines</a>, and similar equipment with external <a href="/facts/Music_sequencer/VhLzSPhr">sequencers</a>. The control voltage typically controls pitch and the gate signal controls note on-off. </p><p>This method was widely used in the epoch of analog <a href="/facts/Modular_synthesizer/ojx5CYP3">modular synthesizers</a> and CV/Gate <a href="/facts/Music_sequencer/VhLzSPhr">music sequencers</a>, since the introduction of the <a href="/facts/Roland_MC-8_Microcomposer/c3I3IbtV">Roland MC-8 Microcomposer</a> in 1977 through to the 1980s, when it was eventually superseded by the <a href="/facts/MIDI/tblhmeFV">MIDI</a> protocol (introduced in 1983), which is more <a href="/facts/Feature-rich/9JRKJJxa">feature-rich</a>, easier to configure reliably, and more readily supports <a href="/facts/Polyphony/obub59bA">polyphony</a>. The advent of <a href="/facts/Digital_synthesizer/9IxIlvFf">digital synthesizers</a> also made it possible to store and retrieve voice "patches" – eliminating patch cables and (for the most part) control voltages. However, numerous companies – including <a href="/facts/Doepfer/DNJy0Ugh">Doepfer</a>, who designed a modular system for <a href="/facts/Kraftwerk/rCfmar40">Kraftwerk</a> in 1992, <a href="/facts/Buchla/Dm1dWJrw">Buchla</a>, <a href="/facts/MOTM/qhpJo3R7">MOTM</a>, Analogue Systems, and others continue to manufacture modular synthesizers that are increasingly popular and rely primarily on analog CV/gate signals for communication. Additionally, some recent non-modular synthesizers (such as the <a href="/facts/Alesis_Andromeda/L64VEExP">Alesis Andromeda</a>) and many effects devices (including the <a href="/facts/Moogerfooger/04BVlWLY">Moogerfooger</a> pedals by <a href="/facts/Moog_synthesizer/I6EkoW5J">Moog</a> as well as many guitar oriented devices) include CV/gate connectivity. Many modern studios use a hybrid of MIDI and CV/gate to allow synchronization of older and newer equipment. </p>