Screenshots

Description

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.

Brusfri can also be used as a AUv3 plug-in in compatible hosts, for example in GarageBand.

*Brusfri means "Noise free" in Swedish.

Here are some examples of sound conditions that Brusfri handles well:

* Guitar amp
* Noisy vintage gear
* Boosted pre-amp
* iPhone/iPad and external mic hiss
* Room reverb removal
* Fan noise
* Background ambiance
* Mains hum / Electric hum

Usage

In short, press “Learn” during a couple of seconds of isolated noise to create a "profile" for noise. This may be all you need to do.

Brusfri can be used in two ways, either standalone or as a AUv3 plug-in.

Standalone
Import the audio, either by extracting audio from a video, by importing from iTunes, or by using the “Open In…” option in any other app that can export audio. Press and hold the Learn button (the ear) while playing unwanted noise. (It’s important that the Ear is only fed with isolated noise). When Learn is released, Brusfri will start reducing noise. On iPhones, you need to swipe left on the Ear to reveal the Expander functions, or swipe right for Filters.

AUv3 plug-in
Open Brusfri in any AUv3 compatible host.
Find a region in the recording that only contains noise and play it.
Tap and hold the “LEARN” button for a short while (a second will be enough). When the LEARN button is released, Brusfri will start reducing noise.

There are a bunch of parameters available that affect the noise reduction algorithm:

ATK / THRS / REL (Attack Time / Threshold / Release Time)
Threshold - basically determines how much noise to be removed. A lower value means more reduction.
Attack and Release sets the time it will take for the reducer to start working.

EDGE
Controls the reduction aggressivity. A lower value gives a smoother reduction.

HPF
Reduces low frequencies.

HIGH
Compensates high frequencies by boosting them.

NOTE! Brusfri is CPU intensive and iPhone 6 / iPad AIR 2 or better is recommended. When used as an AUv3 plug-in, we highly recommend freezing/bouncing tracks to reduce CPU usage.

What's New

Version 1.1.0

The standalone version now can import, process and export audio.

Customer Reviews

5 out of 5

10 Ratings

10 Ratings

Does exactly what it says on the tin

RedSkyy73

This app is superb, does exactly what it is supposed to simply and well and with enough controls to fine tune to what you need. User interface is perfect

Essential

doug funnie

I've loved all of Klevgrand's iOS stuff for years now, and this is their best release yet. Its utility value is off the charts if you are working with external gear or recording in a less-than-ideal environment.

You record live instruments / music - must have

Chrome574

Wow. No brainer. If you are reading this review you need this. I use it on recordings from my noisy tube amp. Or that time I recorded the band with one mic.

Information

Seller
Klevgrand Produkter AB
Size
38.3 MB
Category
Music
Compatibility
Requires iOS 9.1 or later. Compatible with iPhone, iPad, and iPod touch.
Languages
English
Age Rating
Rated 4+
Copyright
© Klevgränd Produkter AB
Price
$14.99

Supports

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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