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Transient Processing Plugin by Molecular Bytes
AtomicTransient by Molecular Bytes is a Virtual Effect Audio Plugin and a Software Application for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin, a VST 3 Plugin, an AAX Plugin and a Standalone Application.
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AtomicTransient is an innovative plugin for polyphonic audio-material manipulation and multichannel/polyphonic transient- and envelope shaping.

AtomicTransient allows appropriate "note-based"/sound-event envelope processing in polyphonic audio material. Ideal for mixes, loops, recordings. Refined algorithms provide precise and clear transient detection and excellent dynamic adjustments.


It handles up to three channels where each channel processes all parameters separately. Use the channels e.g. for guitar, bass-drum and snare-drum and adjust the detection to listen only to desired instruments or use Auto-Threshold to automatically detect the basic transients.

The included effects enable universal, time-based change of the envelope or adjustments by LFO filter - in combination with polyphonic mode also for specific drums or note-based for polyphonic recording sequences like piano or guitar.


Polyphonic processing accesses the relevant parts of the sound - all other, already audible sounds remain unaffected.

This allows, for example, to respond only to the bass-instrument, the snare-drum or the hi-hat to remove or separate them, add sustain or modify the attack.

The overlapping sounds of a polyphonic instrument can also be adjusted like separate "notes" in the envelope. You can also change the loops of your sample library universally.

Multichannel / Mixing

All three channel detections are distributable over frequency ranges to separate processing of drums or instruments.

The effect-outputs can also be mixed to optional variable frequency ranges - parameters are used to modify the ratio between effect and source signal.


The integrated effects support a variety of adjustments to your audio material:

They allow to change the envelope using the ADSR effect not only dynamic in attack and sustain, it can even be overwritten with a defined ADSR line. This creates perfect fitting of percussion by changing attack, decay, sustain and release like a "reinterpretation" of instruments by completely changing the envelope according to conception.

The filter effect modifies frequency ranges dynamically via time depending LFOs. Using resonance setting can push the sound to a typical pithy character.

Interactive live displays

A detail-context styled spectral meter displays transient events, channels and the signal itself.

To set the envelope optimal to desired values, the ADSR effect extracts a visual representation from the real envelope of the current signal.

And even more...

Two "listen" functions supports the setting of parameters. AtomicTransient also supports common parameters like dry/wet, gain, auto-gain and features A/B program comparison, preset copy & paste (via clipboard as XML), integrated MIDI learn,
a scalable/resizable user-interface with two different skins and more than 160 factory presets.


  • Input filtered transient detection.
  • three independent processing channels.
  • monophonic and polyphonic processing.
  • ADSR envelope and LFO-Filter effects.
  • channel mixer with output effect filter.
  • graphical live displays to visualize signal, processing and signal's ADSR.
  • input and output level meter.
  • gain and auto-gain modificators.
  • auto threshold.
  • MIDI controlling + integrated MIDI learn.
  • multipurpose factory presets.
  • preset-browser, user- and factory-preset grouping, copy & paste presets to clipboard.
  • A/B program comparison, UNDO/REDO.
  • resizable user interface and two different skins.
  • executable standalone-application (Windows only).

System requirements Windows/PC:

  • Pentium i3 compatible CPU or higher, SSE3 support recommended.
  • 1 GB RAM.
  • 30 MB free hard disk space.
  • Windows Vista / Win-7 / Win-8 / Win-10 (all 32 or 64-bit).
  • VST / AAX compatible effect hosting software or DAW.
  • Internet connection for software activation - optional on any other computer.
  • Standalone-Application: Audio-Hardware supporting common system drivers.

System requirements Mac:

  • Mac OS X 10.10 or higher.
  • Intel CPU (Core2Duo or higher).
  • 1 GB RAM.
  • 40 MB free hard disk space.
  • AU / VST / AAX compatible effect hosting software or DAW.
  • Internet connection for software activation - optional on any other computer.

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