Bark Filter 4+


Harry Gohs

Designed for iPad

    • 4.9 • 24 Ratings
    • $3.99



Bark Filter - Critical Band Analyser/Filter/Compressor

The multi band filter in Bark takes the approach to match the reception characteristic of the gate where all sounds must pass through: the human ear. The ear behaves as if it contains a bank of filters, each filter passing frequencies within their respective critical band. Two tones apart more than the frequency dependant critical bandwidth are perceived as separate tones. For this reason Bark contains a filter bank with 27 very steep bandpass filters matching the critical bandwidth characteristic of the human ear. In fact, the human ear have also its own built in multi band compression system which are based on the critical bands.

Why the name Bark ? The Bark scale is a frequency scale on which equal distances correspond with perceptually equal distances. Above about 500 Hz this scale is more or less equal to a logarithmic frequency axis. Below 500 Hz the Bark scale becomes more and more linear.

Multiband compressors can act differently on different frequency bands. The advantage of multiband compression over full-bandwidth compression is that unneeded audible gain changes or "pumping" in other frequency bands is not caused by changing signal levels in a single frequency band.
Bark can act both as single band compressor and with up to 27 bands in multiband mode by linking critical bands.

The linear phase filter bank with its steep filter slopes can be used for unusually pronounced filter effects too...


• Multi band dynamic range compressor with up to 27 bands
• Variable number of compressor bands (1..27)
• Threshold/Ratio Attack/Release and Makeup Gain
• Linear phase precision filters for maximal transparency
• Real time pre/post processing calibrated spectrum analyser
• AudioUnit for AUv3 compatible hosts.
• Inter-app audio compatible effect.
• Audiobus 3 compatible with state saving.
• Low latency live usage with mic and headphones.
• Audio recorder

What’s New

Version 1.2.1

- Fixes preset window opening problem

Ratings and Reviews

4.9 out of 5
24 Ratings

24 Ratings

Adam Kissy ,


I don’t write reviews often. In fact maybe this is my 3rd since the release of iPhone 3GS. So I’m not joking when I say this is spectacular. I feel it’s so highly important to recognize and acknowledge developers that give us something that is beyond expectation. As well as especially when the app surpasses a desktop vast or software. This is a little piece of magic. I appreciate the filter and you developers highly. I can’t thank you enough. Simply beautiful.

The only one thing I would wish for is like a little hub where users and the developer can all swap presets. I would love to play with more presents. Because possibilities just seem so Open!

Thank you and Love you guys!

anickt ,

Just Get It!

I’ve used a lot of different mastering apps but dropping this on the output of any mix will give it a whole new (and awesome) sound. Tweak to taste if necessary. Plus as a special fx app this thing kicks!

Battlecakes ,

👍 but Auv3 is broken

This is basically a magic bullet for your mix and I’m really really liking it but...
It’s almost unusable as a plug-in because the layout is messed up and cuts off a third of the controls. Only some of the AU window resizes dynamically; some elements are static and don’t scale so they fall out of view.
Strangely, I’m having the same problem on an iPhone 11 and a 2018 iPad Pro 12.9 so it’s not a small screen issue.

I’m a bit baffled by the lack of updates considering it’s one of the top selling music apps on a regular basis. Hopefully it gets addressed someday.

App Privacy

The developer, Harry Gohs, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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