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Perception AB

Mixing and Mastering Plugin by MeterPlugs
Perception AB
Perception AB by MeterPlugs is a Virtual Effect Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin and an AAX Plugin.
System Requirements
Windows XP or greater
System Requirements
Mac OS X 10.7 or greater
Copy Protection
Serial Number
My KVR - Groups, Versions, & More
12 KVR members have added Perception AB to 4 My KVR groups 15 times.
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KVR Rank

Overall: 7094   5215   6600

30-Day: 4550; 7-Day: 7703; Yesterday: 9879

Better? Or Just Louder?

Loudness changes our perception of music. Louder may seem better at first, but it's easy to be fooled. When mixing and mastering, you must constantly ask yourself, "Is this really better? Or just louder?" The way to make reliable, real-world judgements is to listen with matched loudness. This has always been a key skill for mixing and mastering engineers, which can take years to learn. Until now...

Loudness Deception

Perception AB instantly and automatically matches the level of the music you're listening to, allowing you to hear past the "loudness deception" and make clear, real-world decisions about the best possible sound for your music, quickly and easily. You can bypass entire processing chains to make before and after comparisons of EQ settings, compression and more while mixing or mastering. You can even bypass external analog gear.

How does it work?

Simple. First, insert the Perception AB plugin before the processing chain you want to test, and select "Pre". Second, insert the plugin at the end of the chain and select "Post." Click "Match Level" and you can toggle between the Pre and Post audio to compare your music before and after the processing chain with level-matching and full delay compensation.


  • Bypass any processing chain.
  • Fast A/B testing.
  • Automatic loudness matching.
  • Plugin delay compensation.
  • Optimized for mixing - new Bypass All function.
  • Multiple loudness matching modes.
  • Easy bulk insertion.

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