by HG Fortune
4.2 / 5     (32 votes)
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Alphatron Pro was inspired by the idea of creating a synthesizer for bass and high sequences.

Alphatron is not just a simple VA synthesizer, instead, in using a 3rd oscillator with digital waves of single cycle type, it offers a lot more variation. Thus it can do pretty good analog-style sounds reminiscent of the old Moog and Prophet days but also merge this with the digital realm in various ways to achieve sounds far beyond.

Also, this 3rd oscillator serves as sync master for oscillator 2 thus offering much more sonic flavour. Amplitude Modulation has got a dedicated adjustable output and uses oscillator 2 as the main source being modulated either by oscillator 1 or 3. Oscillator 1 is a polywave oscillator with up to 5 additional waves, so you might have something like Super Saw, Super Pulse, Super Ramp, etc.

Another highlight of Alphatron is the versatile step sequencer with 8 + 4 pattern slots which can be selected in real time for instant pattern switching. Setting Note Seq to off it can serve as step modulator. The Gate length can be modulated by sources. Two play modes: normal with adjustable number of steps or Step Variation, which is in fact another 16 step sequencer to set different number of steps to be played in succession. Loops can be set to repeat up to 4 times, and two alternating semitone offsets can be set, e.g. for each 2nd, 3rd or 4th loop. There are 8 pattern slots per patch and 4 global pattern slots which can be used for instant pattern changes. Current pattern can be copied and pasted to a selectable slot, with the global slots even among patches.

  • 1 VA Oscillator with up to 6 poly waves for Saw, Ramp, Sine, Tri, and Pulse.
  • 1 VA Oscillator with single waves as above plus white and pink noise, Sync slave.
  • 1 Sample Oscillator with fairly typical digital waves (single cycle type) with different harmonic content, Sync master.
  • 1 Amplitude Modulation with dedicated output.
  • 1 24 dB resonant Low Pass filter with dedicated ADSR EG, 4 mixable mod sources.
  • 1 VCA EG. Note: Both EG have 3 modes: exponential, reverse exponential, and linear; and optional control for Attack and Decay by velocity.
  • 1 Booster or Exciter selectable.
  • 1 Mystify with three selectable types (Brite, Soft, Dark).
  • 1 BPM synced Delay with adjustable Offset controlled manually or by modsource, Pan.
  • 1 Bass Boost.
  • 1 Pan for undelayed signal.
  • 1 small Reverb for adding some nice flavour.
  • 1 Saturator.
  • 1 main Volume.
  • 3 x LFO, 1 x Duo LFO (with two waves and phase control for 2nd wave), 1 x S&H.
  • 1 Pitch LFO with option to speed up or down the LFO speed.
  • 16 Step Sequencer (with Shuffle) for notes and velocity plus mute buttons for each step. Includes 8 pattern slots per patch and 4 global pattern slots for instant changes.
  • 3 Wheels.
  • Aftertouch as selectable modsource.
  • 8 Lazy buttons.
  • 8 GUI variants selectable.
  • 128 patches.
veedo Jun 12 2023
Jun 12 2023
How to install this plugin in fl studio? Can someone explain me? PLS
justin roff Dec 25 2023
Dec 25 2023
It works for me, after you extract file, put into a folder on desktop, then arrange plugins in flstudio, it should show up, then star it and itl be in your plugins. if u dont know what im talking about look up tutorial on 3rd party plugins install fl studio
mnrv-ovrf-year-c Feb 17 2023
Feb 17 2023
The NFG version is better (or is it called "Alphatron SE"?) I actually bought the full version, to discover the step sequencer being the weakest point of the whole synth; it seems the author wasn't aware about limitations with saving to FXB. A close check at the presets that use the step sequencer demonstrates they have the same pattern played differently because it looks like one FXB file could store only one pattern. If that pattern is changed it's changed for all other presets that use the step sequencer. I liked this synth most of all for percussive sequences created on a tracker, setting up the oscillators for noise and high-and-low tones. It's not recommended to use the delay for rhythmic stuff, "offset" is too confusing. Another thing that I wish were different was MIDI velocity decoupled from main amplitude, so it could be better used for filter cutoff modulation. The "Mystify" was a bad idea on a bass-and-leads synth, better on the awful-sounding and less useful Avatar ST.
Koz Sep 21 2023
Sep 21 2023
I used to wonder about the use of "Offset" delay with an arpeggio or sequence. Then Dr.Mix did an "Autobahn" video and then it twigged ...
Arnold Oct 03 2022
(5 / 5)
Oct 03 2022
These are the best sounding synths I've heard!
Rippley Dec 09 2021
(5 / 5)
Dec 09 2021
Great sounds with a lot of utility.
Jeffrey Price Sep 04 2021
(5 / 5)
Sep 04 2021
H.G. Fortune left behind a treasure trove of amazing synths! RIP :(
aurelian Feb 04 2021
(5 / 5)
Feb 04 2021
Thank you!
Orbisong May 11 2020
May 11 2020
How to use and record the sequencer ?
Rory Apr 23 2020
(5 / 5)
Apr 23 2020
Thanks a bunch, great piece of kit
SL Mar 13 2019
Mar 13 2019
Best of the best! Brilliant!
Foxtrot Feb 09 2019
(3 / 5)
Feb 09 2019
Crah with ABLETON 9.7 !
Monolectric Feb 25 2018
Feb 25 2018
Wow. What a damn good Synth...
mARKUS Apr 30 2017
(4 / 5)
Apr 30 2017
Wow. I am kind of new to VSTi's as I usually prefer hardwaRE BUT THIS WAS A really GOOD ONE!
mick dunne Jun 12 2015
(5 / 5)
Jun 12 2015
Top of the range.
Space Pilot Dec 06 2014
(5 / 5)
Dec 06 2014
Awesome synth so far! Is there a way to quickly initialize the entire synth so I can start from scratch?
Anonymous Dec 06 2014
Dec 06 2014
Last patch (63) is the init...
Solcito M�sica May 13 2012
(3 / 5)
May 13 2012
You are a great developer, thus you no need to add echo to a lot of patches... I like the mask design!
Ghekorg7 Apr 06 2012
(4 / 5)
Apr 06 2012
Great synth. Even with just two voices and a couple of missing functions (which personally don't need anyway..) a creative soul can do many many cool stuff with it. Big sounds it has even as a free VST