• Lightweight Real-Time Convolution Engine
• 6 Modes including True Stereo
• Dual IR Engine with Parameter Link
• 4 LFOs with multiple destinations
• 2 Multi-mode Filters
• Chorus, Phaser, Compressor, Waveshaper
• Impulse Response Space Simulator
• Impulse Response Generator
• Preset Browser with customizable categories, tags, ratings, …
• 740+ Impulse Responses
• Resizable Window
• Preset system with randomizer
• Snapshot system

Easy Drag and Drop

You can easily load any audio file (WAV or AIFF) into Fog Convolver with a simple Drag and Drop, or by using the built-in browser. If you drag two files, they will be assigned to IR1 and IR2.

Space Simulator



With the Space Simulator you can create impulse responses of virtual rooms. You can change dimensions, manually place the source and listener, and experiment with combinations of materials on each of your six walls to simulate architectural acoustics.
Powered by Lese Audio Technologies.

True Stereo

True Stereo impulses are usually recorded simultaneously to capture a better stereo image, but you can also use two unrelated IRs to create experimental stereo reverbs.

Impulse Generator

If you don’t want to use any previous impulse responses or samples, you can use the built-in impulse response generator to create your own artificial spaces.

Craft Spaces

Reverbs of all kinds, from early digital effect processors to real spaces, including noise sources from vintage synths.

211 Impulses

Old Times

Impulse responses from old public domain recordings divided into 4 categories: 78 RPM, NASA, Radio, and Wax Cylinders. Most of the samples come from the Internet Archive.

40 Impulses

OpenAIR

A selection of impulse responses from the OpenAIR database, including Churches, Halls, Chambers, and an old Nuclear Reactor.

83 Impulses

Organic Compounds

Structures were detected using Nuclear magnetic resonance (NMR) spectroscopy to obtain physical, chemical, electronic, and structural information about molecules.

45 Impulses

Polarity

Custom impulse responses made by “Bitwig Guru” Polarity using white noise, Dirac samples, granulators, and many many modulations.

67 Impulses

Test Equipment

Noise, glitch, and tone impulse responses made using only test equipment (Hainbach style!).

45 Impulses

Unusual

As the name implies, all kinds of objects, instruments, electronics, and organic samples used to create spaces, echoes, drones, and unique tones.

108 Impulses

Vintage Mics

Impulse responses of vintage microphones from 20 manufacturers. Mostly ribbon microphones from the 30s to the 70s.
Courtesy of the Microphone Impulse Response Project.

65 Impulses

DIY

A collection of custom-built spring and plate reverbs, resonators, and a variety of hand-made acoustic reverberators and delays.

43 Impulses

Convolution works by applying the sonic character of an impulse response to another sound in real-time. You can use Fog Convolver to add reverberation, create special effects, and apply an acoustic impulse captured from audio equipment.

An impulse response is a recording of the output that is caused by an acoustic space or electronic gear when an impulse is played (electric spark, starter pistol shot, boards clap, or the bursting of a balloon).

Try Fog Convolver 2 for free with some limitations: limited selections of noises, silence for 3 seconds every 2 minutes, saving disabled.

Click here to download the demo.

It’s not possible to authorize the demo version, you’ll get the full version installer after purchase.

Windows 7 - 11

• 2GHz CPU, 4 GB RAM, 1.5 GB HD
• VST2, VST3, AAX, CLAP (64-bit)

macOS 10.13 – macOS 26

• 2GHz CPU, 4 GB RAM, 1.5 GB HD
• VST2, VST3, AU, AAX, CLAP (64-bit)
• Universal 2 Binary

Ubuntu 20.04 LTS

• 2GHz CPU, 4 GB RAM, 1.5 GB HD
• VST2, VST3, CLAP (64-bit)