This is usually preferred in analog VCO for its 'organic' quality.
When you play two or three notes together, the oscillators are beating against each other (different oscillators are in different phases, so sometimes they caused constructive interference, sometimes destructive interference, thus beating), because each of them are slightly out of tune and out of phase. However, IMO the specifics of this matter point in another direction.įirst of all, Pro 3 only have 1 VCA, but a VC mixer that can kinda act as VCAs. What is happening here? Does anyone else have their synth with this problem? My retailer told me that it is normal for VCAs to behave this way.
SEQUENTIAL PRO 3 MOD
I have all mod sources disabled, fine tune knobs at their neutral positions, and the slop for both is set at zero. Its like the filter is being modulated, but of course this does not fully explain the problem. When both are played at the same time, pitch slowly goes up and down within a wide range, periodically with something that sounds like a sine wave at a hogher pitch. Each VCA sounds fine when played individually.
SEQUENTIAL PRO 3 PATCH
"The CVs and deep mod matrix make it a mini modular in its own right - without all the patch cables.I Have a question for those of you that own this synth I have recently acquired one for myself. "We wanted to make the Pro 3 as flexible as possible," said Smith. Control voltages are routed from within the modulation matrix and run at audio rates for extreme modulation effects. In addition to notes, sequence tracks can control any parameter in the 32-slot, 171-destination modulation matrix.Īnother key feature of the Pro 3 is its four scalable rear-panel control voltage inputs and outputs, which allow compatibility with modular synths. It also syncs to MIDI clock and external audio input, and inputs/outputs control voltages. The full-featured sequencer provides 16-track sequences of up to 64 steps, with ratcheting, variable gate and sequence lengths, multiple playback modes, and paraphonic operation. This makes it possible to play 3-note chords where the three individual oscillators share a common filter and envelopes. The synth is also capable of 3-voice paraphonic operation. A programmable position-sensitive touch slider and pitch and mod wheels provide nuanced control over live performance. The LFOs, delay, and arpeggiator can be synced to either the internal clock or an external MIDI clock.
The feature set of the Pro 3 is rounded out with a multimode arpeggiator, three LFOs, four loopable ADSR+delay envelopes, dual digital effects (delays, reverbs, and various time-based effects), tuned feedback, analog distortion, and extensive modulation possibilities. A Drive control provides additional punch to all three filters. Filter 3 is a classic 2-pole, state-variable design based on the OB-6 filter that can be continuously varied between low-pass, notch, and high-pass operation, with an optional band-pass mode. Filter 2 is a classic transistor ladder filter with optional resonance compensation to preserve its low-end punch. Filter 1 is a 4-pole low-pass design based on the Prophet-6 filter. Three vintage-style filters shape the sound of these oscillators. Part of this sonic versatility comes from the Pro 3's oscillators: Two voltage controlled oscillators provide traditional triangle, saw, and pulse waves with waveshaping, while a third digital wavetable oscillator provides 32 tables of 16 waves each with wave morphing. To do that, we built on the strengths of its modern-day counterpart, the Pro 2, and created a worthy successor to both that sets a new benchmark for raw power and versatility."
"In many ways the Pro 3 is the evolution of a concept that started with the classic Sequential Circuits Pro-One," said Sequential founder Dave Smith: "Pack as much power as possible into a compact footprint and make it sound awesome. The Sequential Pro 3 is a mono/paraphonic synthesizerĪ hybrid instrument, the Pro 3 features three classic analog filters (Prophet-6, OB-6, and ladder) and three oscillators (two VCOs and one wavetable oscillator) along with a powerful new 16-track sequencer, and the ability to connect with modular synths through its four control voltage ins/outs.
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