Floor the noise.

Screenshot of Klevgrand Brusfri - Noise Reducer - Floor the noise.

Brusfri

Noise Reducer

An advanced audio noise reducer with a simple and straight-forward interface.

Brusfri is a highly advanced audio noise reducer, packed into a simple and straight-forward interface. It is very well suited for cleaning up noisy audio recordings, while retaining sound quality. Unlike many other noise reducers on the market, Brusfri doesn’t mess with audio phasing to suppress noise (a technique that often comes with audible side effects). Instead, multiple fine-tuned gates are used to silence unwanted noise.

Features

  • Several frequency-trimmed expanders build an intelligent noise suppressor
  • No phase-altering, which leaves the desired sound untouched (no squishy artifacts as in many other noise reducers)
  • Intuitive and unique user interface

Technical specifications

macOSWindows

Requires macOS 10.10 or later (optimized for the M1-processor), Windows 7 (SP1) or later, running a AU, VST or AAX compatible 64-bit host.

macOS/Windows

Brusfri
AAXAUVST
$59.99Shop Now

iPad/iPhone

Brusfri
StandaloneAUv3
$14.99Download on the App Store
Videos

Get rid of background noise on a vocal recording

Using Brusfri in a noisy kitchen

Use Brusfri directly in your video editor

Anatomy
Anatomy
1
2
3
1→

Attack-Threshold-Release

These parameters controls all the internal expanders relatively.

2→

Learn button

Brusfri needs some noise to be analysed. Most of the time, this is the only thing that's needed. Push and hold to feed audio data and create a noise profile.

3→

Tonality

Most of the time, Brusfri does a good job in creating a noise profile that works as expected, but in some cases (especially when there's heavy noise involved) one needs to tweak a bit.

Read more

What is that noise?!

Can we shut down the vent system for the whole building please?
Downloads

Klevgrand Helper

Klevgrand Helper streamlines updates, installations and license activations for all your Klevgrand plugins and expansions. Sign in with your Klevgrand account and prepare for a smooth experience with Klevgrand Helper.

UI of Klevgrand Helper

Brusfri Downloads

Legacy downloads below
Demo version == Full version
All our plugins can be downloaded and tested for free. The demo is the full version, but with occasional audio dropouts.
macOSmacOS version
Brusfri v1.2.2
Show Changelog

Brusfri

v1.2.2

  • Added AAX Apple Silicon support
  • Improved graphics performance

v1.2.1

  • Fixed an issue where a couple of user interface components wouldn't always react on automation changes.

v1.2.0

  • UI changes
  • New gain control(!)
  • Possible to load/save states to file.
  • macOS binaries supports ARM (M1) CPU natively
  • New minimum macOS version is now macOS 10.10
  • Updated development framework from JUCE5 to JUCE6

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
WindowsWindows version
Brusfri v1.2.2
Show Changelog

Brusfri

v1.2.2

  • Added AAX Apple Silicon support
  • Improved graphics performance

v1.2.1

  • Fixed an issue where a couple of user interface components wouldn't always react on automation changes.

v1.2.0

  • UI changes
  • New gain control(!)
  • Possible to load/save states to file.
  • macOS binaries supports ARM (M1) CPU natively
  • New minimum macOS version is now macOS 10.10
  • Updated development framework from JUCE5 to JUCE6

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
Show Legacy Downloads
WindowsWindows versionLegacy
Brusfri v1.1.2
(Unzip and open the included .exe file to start the installation)
Show Changelog
macOSmacOS versionLegacy
Brusfri v1.1.2
(Unzip and open the included .pkg file to start the installation)
Show Changelog
macOSmacOS versionLegacy
Brusfri v1.1.3
Show Changelog

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
WindowsWindows versionLegacy
Brusfri v1.1.3
Show Changelog

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
macOSmacOS versionLegacy
Brusfri v1.1.4
Show Changelog

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
WindowsWindows versionLegacy
Brusfri v1.1.4
Show Changelog

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
macOSmacOS versionLegacy
Brusfri v1.2.0
Requires macOS 10.12 or higher, running an AU, VST or AAX compatible 64-bit host.
Show Changelog

Brusfri

v1.2.0

  • UI changes
  • New gain control(!)
  • Possible to load/save states to file.
  • macOS binaries supports ARM (M1) CPU natively
  • New minimum macOS version is now macOS 10.10
  • Updated development framework from JUCE5 to JUCE6

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
macOSmacOS versionLegacy
Brusfri v1.2.0
Requires macOS 10.10 or 10.11, running a AU, VST or AAX compatible 64-bit host.
Show Changelog

Brusfri

v1.2.0

  • UI changes
  • New gain control(!)
  • Possible to load/save states to file.
  • macOS binaries supports ARM (M1) CPU natively
  • New minimum macOS version is now macOS 10.10
  • Updated development framework from JUCE5 to JUCE6

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
WindowsWindows versionLegacy
Brusfri v1.2.0
Requires Windows 7 with SP1 or higher, running a VST or AAX compatible 64-bit host.
Show Changelog

Brusfri

v1.2.0

  • UI changes
  • New gain control(!)
  • Possible to load/save states to file.
  • macOS binaries supports ARM (M1) CPU natively
  • New minimum macOS version is now macOS 10.10
  • Updated development framework from JUCE5 to JUCE6

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
macOSmacOS versionLegacy
Brusfri v1.2.1
Requires macOS 10.12 or higher, running an AU, VST or AAX compatible 64-bit host.
Show Changelog

Brusfri

v1.2.1

  • Fixed an issue where a couple of user interface components wouldn't always react on automation changes.

v1.2.0

  • UI changes
  • New gain control(!)
  • Possible to load/save states to file.
  • macOS binaries supports ARM (M1) CPU natively
  • New minimum macOS version is now macOS 10.10
  • Updated development framework from JUCE5 to JUCE6

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
macOSmacOS versionLegacy
Brusfri v1.2.1
Requires macOS 10.10 or 10.11, running a AU, VST or AAX compatible 64-bit host.
Show Changelog

Brusfri

v1.2.1

  • Fixed an issue where a couple of user interface components wouldn't always react on automation changes.

v1.2.0

  • UI changes
  • New gain control(!)
  • Possible to load/save states to file.
  • macOS binaries supports ARM (M1) CPU natively
  • New minimum macOS version is now macOS 10.10
  • Updated development framework from JUCE5 to JUCE6

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
WindowsWindows versionLegacy
Brusfri v1.2.1
Requires Windows 7 with SP1 or higher, running a VST or AAX compatible 64-bit host.
Show Changelog

Brusfri

v1.2.1

  • Fixed an issue where a couple of user interface components wouldn't always react on automation changes.

v1.2.0

  • UI changes
  • New gain control(!)
  • Possible to load/save states to file.
  • macOS binaries supports ARM (M1) CPU natively
  • New minimum macOS version is now macOS 10.10
  • Updated development framework from JUCE5 to JUCE6

v1.1.4

  • Fixed an ignoble bug that could cause AAX Audio Suite to refuse mono rendering.

v1.1.3

  • Updated plugin development SDK version for better compatibility with modern DAWs.
  • Requires macOS 10.9
  • 64 bit only

v1.1.2

  • Fixed a phase issue GUI rendering bug when resizing on some hosts .
  • A PDC issue addressed.

v1.1.1

  • Fixed an error causing incorrect channel volumes.

1.1.0

  • Learn button is now automation-enabled.
  • Mix dry/wet parameter.
  • Lookahead on/off parameter.
  • Small layout mode.
  • Performance optimizations.
  • Minor fixes.
Brusfri user manual
The user manual for Brusfri