Access Virus "A"
Advanced simulated analog synthesizer (1997)
Advanced simulated analog synthesizer (1997)
MODULE with optional rackmount ears.
The main panel features a 2 x 16 lines display, 27 buttons and 32 knobs with relative or absolute position mode.
PERFORMANCE:
system handles 16 multitimbric parts with individual settings:
- velocity assign to FM, pan, shape and width
- variable portamento time
- 4 mono playmodes
- 2 voices stack (with detune)
- Midi channel assign
- key zone assign
- note transpose
- pitch detune
- assign analog out / volume
- note priority
- FX amount
- Arpeggiator simple function with latch and 4 directions
TERMINAL CONNECTORS
- power switch
- external PSU 12 VDC 1A - (+ polarity.
- 1 stereo or 2 independent mono inputs
- 3 stereo signal outputs (headphones using first left main out)
- Midi IN and OUT that can be also switched to THRU mode
SOUND Siemens SAB80C535 with physical-modeling DSP core generates 12 voices polyphony at 20 bit resolution, a mix of virtual analog modeling and short PCM waveforms: these are the Harmonic Waveshapes. A VIRUS voice is composed by 2 oscillators + 1 sub-oscillator + 1 noise source, here's the differences between them:
| OSC1 | OSC2 | SUBOSC | |
|---|---|---|---|
| Modeling waveforms | sin / tri | sin / tri | sqr / tri |
| Pulse width | yes | yes | - |
| Smooth shaper | yes | yes | - |
| PCM waveshapes | 64 | 64 | - |
| Volume | bal osc1/2 | bal osc1/2 | yes |
| Pitch tuning | yes | yes | - |
| Wave sync | - | 1>2 | - |
| FM | - | 1>2 | - |
FILTER 2 filters (-12 dB each) can be combined in 2 serial, 1 parallel or directly set to independent mode. Both filters feature 4 different models: BFP, LPF, HPF and Band STOP . In addition a special Keyfollower option plus a filter saturation which basically emulates a vacuum tube distortion.
ENVELOPE 2 digital EG:
- EG1 AMP: 4 segments + 1 time
- EG2 filter: 4 segments + 1 time with possible EG inversion.
LFO up to 3 delayed modulators with same shapes (sin / tri /saw / sqr / S&H / sample & glide) but different destinations:
LFO1: pitch / width / resonance / filter gain
LFO2: osc shape/ Fm amount / cutoff / pan
LFO3: pitch /width / Sync OSC1 and 2
TIP: MATRIX like a modular, the Virus handles 3 internal routings or virtual patchcords that connect a modulation source to a destination.
EFFECTS there are 2 digital FX onboard:
- delay: with rate, time, modulation LFO and feedback.
- chorus: with rate, depth, delay, feedback and LFO shape
MEMORY CMOS ram UM621024C 256 RAM single + 128 RAM multi
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