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General| Keyboard | 37 keys |
|---|---|
| Arpeggiator | Yes |
| MIDI | No |
| Year Released | 1981 |
| Type | Analog |
| Oscillators | 2 |
| Waveforms | Sawtooth, Pulse |
| Filter | 24dB/octave low-pass |
| LFO | 1 |
| Envelopes | 2 ADSR envelopes |
| Sequencer | 40-note sequencer |
Details power and audio connections, emphasizing safety protocols and grounding for the Pro-One.
Guides users on setting up and playing the Pro-One, suggesting factory patches and control exploration.
Explains the 40-note sequencer, its recording, playback, memory banks, and transposition features.
Offers troubleshooting tips for common issues like power, sound, and sequencer problems, including fuse checks.
Explains the Pro-One's voice architecture: waveshape generation, modification, and control, including signal flow diagrams.
Details controls for Oscillator A: frequency, octave, shape, and pulse width for sound generation.
Covers Oscillator B, functioning as audio source or LFO/modulation source with independent controls.
Details FILTER controls: CUTOFF, RESONANCE, ENVELOPE AMOUNT, and KEYBOARD AMOUNT for timbre shaping.
Explains the ADSR contour for timbre and loudness shaping, detailing attack, decay, sustain, and release parameters.
Details AMOUNT and ROUTE controls for assigning modulation sources (FIL ENV, OSC B, LFO) to destinations.
Step-by-step guide for a full tuning of Pro-One oscillators and parameters using specific patches and trimmers.
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