nrg-A

On October 11, 2005 the company Synthepolis enriched the world, with the nrg-A, a polyphonic analog virtual synthesizer. Sonically, it is a masterpiece and valuable in its sound to this day. Unfortunately the company disappeared and therefore nrg-A is only available in 32-bit and on the technical and graphical state from May 2006.

nrg-A architecture overview (from the nrg-A Manual):

The nrg-A is a virtual analog synthesizer. Generates sound by simulating the different
components of an analog synthesizer through physical modelling. nrg-A uses no samples, it just calculates the sound as you plays in accordance to the controls it receives. The result is an unique, quality, realism, warmth and dynamic sound character.

Waveform /VCO (Voltage Control Oscillator):

- Sine = Classic sine waveform
- Parsine = Parabol sine
- Triangle = Triangle waveform
- Triasine = SineTriangle combination waveform
- Saw = Sawtooth waveform
- Saw mg = Moogish Sawtooth waveform,
- Ramp = Ramp (inverted sawtooth) waveform
- Ramp mg = Moogish Ramp waveform
- Pulse = Square/Pulse waveform
- W.Noise = White Noise waveform
- P.Noise = Pink Noise waveform.

Filter / VCF (Voltage Control Filter):

- LP 36 db = Low Pass filter with 36 db/octave slope
- LP 24 db = Moogish Low Pass filter with 24 db/octave slope
- LP 12 db = Low Pass filter with 12 db/octave slope
- HP 12 db = High Pass filter with 12 db/octave slope
- BP 12 db = Band Pass filter with 12 db/octave slope
- BR 12 db = Band Reject (Notch) filter with 12 db/octave slope.

nrg-A features:

• Analogue subtractive synthesis.
• 16 voices / 384 patches.

• 3 VCOscillators each with 11 waves: sine, parsine, triangle, triasine,
saw, saw mg, ramp, ramp mg, pulse, white and pink noise.

• Pulse length control for every VCO.
• Phase control for VCOs 2 and 3.
• 3 Fm routes for VCOs: 3>2, 3>1, 2>1.
• 2 Sync routes for VCOs: 2>3, 1>2.
• Key retriger option for VCOs.
• Ring effect with 3 routes: VCOs 1*2, 1*3, 2*3.
• 1 VCFilter with 6 types: LP 36, 24 and 12 db, HP, BP and BR 12 db.
• Velocity and aftertouch for VCF frequency.
• VCF input hard clip and drive controls.
• VCF output soft distortion (saturation) control.
• VCF Fm with 6 sources: VCOs 1, 2, 3, 1+2, Ring, Mix.

• 3 adsr Envelope Generators: EG1 for VCAmplitude and via Matrix, with velocity to amount and attack control. EG2 for VCF freq and via Matrix, with 4 slope curves, inverse option and velocity to amount control. EG3 for 32 dedicated destinations and via Matrix, with 4 slope curves, inverse option and velocity to amount control.

• 3 Low Frequency Oscillators, each with 7 waves: sine, triangle, saw, ramp, square, white
and pink noise, full syncable to host tempo, retriger, s/h and wheel to amount
options, plus delay control for LFO1 and phase control for LFOs 2 and 3, plus 42
dedicated destinations and via Matrix for LFO1, 42 dedicated destinations and via Matrix
for LFO2 and 51 dedicated destinations and via Matrix for LFO3.

• Matrix modulation with 5 slots: 1) with 21 sources and 32 destinations, 2) with 21 sources
and 32 destinations, 3) with 19 sources and 42 destinations, 4) with 17 sources and 46
destinations, 5) with 15 sources and 51 destinations.

• Sequencer/gate unit with 16 steps, 2 modes, full syncable to host tempo, key retriger
option, step number selector, 16 notes selectors (4 octaves range), 16 on/off gates,
out to pitch option and to VCF freq control, gate to EG1 and to EG2,3 options with gate
length control.

• Stereo Delay, each channel is full syncable to host tempo and with time, feedback and
mix controls.

• Reverb unit with damp, width, size and mix controls.
• Equalizer 2 band: low and high +/- 6 db.
• Output 6 db high pass filter.
• Play mode selector: mono, mono with: last, high, low note priority, legato and poly mode.
• Portamento control, MIDI channel, transpose and pitch bend range selectors.