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Saturday, December 21st, 2024 11:51 am

Synth Glossary

Resonance:
Most filters can emphasize the frequencies just before those that are reduced in volume. Resonance is the degree of emphasis that occurs. It makes the filter much more audible and gives it character - it would otherwise sound like just altering the equalisation - and is the foundation of the acid sound....

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Omni-2
"The ARP Omni-2 is an improved version of the popular Omni. It features all- electronic switching, single/multiple triggering and a separate bass synthesizer. The Omni-2 is actually three separate instruments in one package - 1) a highly evolved string chorus, 2) polyphonic synthesizer section and 3) separate bass synthesizer. All three sections can be played simultaneously for impressively-rich orchestral effects....The Omni-2 has controls to balance the volume of each section, selectable waveforms and chorus phaser controls. Each section has its own output so that the Omni-2 can be played in stereo or even dramatic 'triphonic.'"----[from ARP's promotional Omni-2 brochure courtesy of Kevin Lightner]

The Omni keyboards are string synthesizers with four separate voices (bass, cello, viola, violin, each independently switchable) and a bass/synthesizer section. The string section has its own variable speed LFO, and attack/release envelopes. The synthesizer section has a VCF and its own ADSR envelope. The bass/synthesizer split is set to the lower one and a half octaves. The Omni (model 2300) was ARP's best selling intstrument. Unlike the original, the Omni-2 has single triggering so that when any note is held down the VCF and VCA envelopes will not re-trigger. The original Omni had multiple triggering so that every time a key was depressed the envelopes were triggered.

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