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Access Virus A

 

 

 

Access virus A

audio demo trend price : 300-350€
manual   factory patch demo video comments

ACCESS VIRUS A (1997)


The first of the famous VIRUS synthesizers family started at the end of the nineties.


Virus line product is still produced with new versions featuring more powerful DSP processors like T1 and T2 models.

full of knobs!

virus A technical info

info LAPTOP module with optional rackmount.
The main panel features a 2 x 16 lines display, 27 buttons and 32 knobs with relative or absolute position mode.

Back panel terminal connectors:
- 3 stereo outputs
- 1 stereo or 2 independent mono inputs
- Midi IN and OUT that can be also switched to THRU
- headphones using first left out

acPower supply is external PSU - 12 VDC 1A (+ polarity


editVOICE
physical-modeling DSP core generates 12 digital voices at 20 Bit resolution.
The synthesis is a mix of virtual analog modeling and short PCM waveforms (these are the harmonic waveshapes)


mix

wavetable OSCILLATOR a voice is composed by 2 digital oscillators + 1 sub + 1 noise source.

  OSC1 OSC1 SUBOSCILLATOR
modeling waveforms sine / triangle sine / triangle square / triangle
variable pulse width yes yes -
smooth shaper yes yes -
PCM waveshapes 64 64 -
volume balancing osc1/2 balancing osc1/2 yes
pitch tuning yes yes -
wave sync - 1>2 -
frequency modulation - 1>2 (128 levels) -


adsr ENVELOPE there are 2 EG:
- EG1 AMP: 4 segments + 1 time
- EG2 filter: 4 segments + 1 time with possible EG inversion



filterFILTER
2 filters (-12 dB each) can be combined in 2 serial, 1 parallel or directly to independent mode. Both filters feature 4 different models:
- lowpass
- highpass
- bandpass
- bandstop
The saturation parameters emulates a tube distortion while there's also a jey follower function.

filter

oscillators

fx PERFORMANCE system handles 16 parts with individual settings:
- velocity assigned to FM, pan, osc shape and width
- variable portamento time
- 4 mono playmodes
- 2 voices stack with detune
- Midi channel
- key zone
- transpose
- detune
- analog out
- volume
- priority
- FX amount

lfo LFO there are 3 delayed modulators:

  LFO1 LFO2 LFO3
shape sin / tri /saw / sqr / S&H / sample & glide sin / tri /saw / sqr / S&H / sample & glide sin / tri /saw / sqr / S&H / sample & glide
EG mode yes yes -
poly mode yes yes yes
attack symmetry yes yes -
destinations pitch / width / resonance / filter gain osc shape/ Fm amount / cutoff / pan pitch /width


lfo

 

fx MATRIX like a modular, the Virus handles 3 internal routings or virtual patchcords that connect a modulation source to a destination.
here's a simplified table:

sources

destinations

bender
mod wheel
breath
MIDI cc#
expression
balance
data slider
hold pedal
sustain pedal
portamento pedal
volume
transpose
osc shape
width
pcm
cutoff
detune
ADSR
LFO rate, symmetry
effects control


fx EFFECTS there are 2 digital FX:
- chorus: with rate, depth, delay, feedback and LFO shape
- delay: with rate, time, modulation LFO and feedback


midi ARPEGGIATOR simple function with latch and 4 directions:
- up
- down
- up and down
- as played



midi
SYNC arpeggiator and LFO1-LFO2 can be sync internally from 63 to 190 BPM (there are 17 time dividers) or slaved to external Midi clock



midi MIDI
full Control Change implementation
- full exclusive systems
- 2 freely assignable knobs to any Midi CC#


memroy MEMORY holds:
- 256 RAM single
- 128 RAM multi
Memory works with a lithium 3V battery.
battery
lfo

lfo


demoAUDIO DEMO

cat and synth




demo Soundcloud Access Virus A

beethoven    



video YOUTUBE VIDEO CLIP SELECTION

Access Virus A sequensed original demo acid virus
Access Virus A sequencer original demo FUN :)

access virus a

 

 

 

video
wiseman tips:

changing the waveshaper value progressively modifies the waveform toward SAW (at 12 o'clock pot) and again toward Square wave; when in PEAK (right-most position) value you are in full square wave, then the wave selector acts as rectangle Width.

 


mixer

 

 

virua a lateral view lfo inside the virus


manual

- Good sound
- lot of solid knobs
- Midi
-now cheap

manual

- not so easy to understand
- polyphony

-manual


comment



"Good sound , great wavetable and weird multimode filter""




"Those massive analog beasts certainly had a stunning visual effect, especially on stage. However, we will guarantee that you will change your mind ..." VIRUS manual


 

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all snapshots, sounds, texts copyright Polynominal.com / Eric Pochesci

Access Virus A 4.5 out of 5 based on 28 ratings. price €300