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Wow & Flutter

Lo-Fi Plugin by The Interruptor
Wow & Flutter
Wow & Flutter by The Interruptor is a Virtual Effect Audio Plugin for Windows. It functions as a VST Plugin.
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30-Day: 484; 7-Day: 638; Yesterday: 629

Wow & Flutter emulates the playback speed imperfections of the pre-digital era.


  • Playback speed is modulated in realtime by up to six oscillators.
  • Intuitive controls: Non-linearly scaled controls allow to directly set the perceived pitch deviation depth and rate resulting from the playback speed modulation.
  • Dual mode: In dual mode the left and the right channel are modulated separately.
  • Flange mode: When the modulated signal is mixed with the original signal a flanging effect occurs. This feature recalls the times when recording engineers created a flange effect by applying pressure on the tape reel with their hand. Additional controls for feedback and delay allow to create more intense flange effects. Although the unit can be pushed to self-oscillation in extreme settings it will never cause digital clipping thanks to a compressor algorithm inserted into the feedback path.
  • A built-in test tone generator makes it easy to quickly check a particular setting with different signals or to use the plug-in as a self-contained "noise maker".
  • If a control has no influence on the sound in a certain mode it will disappear from the surface.
  • MIDI learn: Each control can be automated via MIDI controllers. The default assignment of MIDI controllers is documented in the pop-up hints. To assign a different controller right-click on a control then choose "Learn" from the pop-up menu and twiggle the hardware controller you want to assign. Alternatively choose "Unlearn" or "Edit.." to assign a controller from a list.
Made with SynthEdit

Latest User Reviews

Average user rating of 4.50 from 2 reviews

Wow & Flutter
Reviewed By swillhite
January 28th, 2021

I loved this plugin, unfortunately I can't use the 32-bit version. Would love it if someone would develop a 64-bit version.

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Wow & Flutter
Reviewed By quayquay17
September 1st, 2012

UI: Ugly, like a synthedit plugin with "wood" paneling. That said, there are no menus, and everything is accessible and easy to see/read/use. Even the calibration controls are on the front panel, and the mirrored layout makes a lot of sense! An extra feature that shows how much effort was put into it is that controls will go transparent if they aren't influencing the sound, which is REALLY USEFUL.

Sound: Surprising. There are a lot of "FSU" and "LOFI" synthedit plugins out there. This one really stands out as a gem. From a simple subtle tape flutter on a piano bus to full out warbling brian eno-esque synth pads, there is nothing else that can achieve quit the same effects.

Features: Everything to do with pitchbend, wobble, wow, and flutter, this has it. You can have multiple variations going at different speeds, with multiple time modifiers per, as well as operate it in a L/R configuration, or use it as tape style flange!!! It goes from authentic vibes to crazy layers just by moving some sliders.

Documentation: Not needed. Turn it on, pull the sliders, and enjoy!
Presets: There are a few presets, which give you an OK idea of what this plugin can do, but I've never used any of them. The best sounds are made by starting from scratch and tweaking for each song!
Customer Support: It's freeware, so don't expect a call center. On the flip side, I can't think of any reason you'd need it.

Stability: Use it regularly in ableton live with various buffer sizes. It never causes issues, and has a very low CPU hit.

If you like the sound of old electronic albums, with warbling loops and bending pads, or just want a little bit of vintage widening on a guitar track, snatch this thing. It's a freeware gem.

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