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 apUnmask by apulSoft is a Virtual Effect Audio Plugin for macOS and Windows. It functions as a VST Plugin, an Audio Units Plugin, a VST 3 Plugin and an AAX Plugin.
Product apUnmask
Developer apulSoft
Price (MSRP)
$ 39
Type / Tags Psychoacoustic Audio ProcessorExciter / EnhancerMastering
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
Downloads Released
System Requirements
Windows Vista or newer. Both 32-bit and 64-bit versions of Windows are supported.
A CPU that supports SSE2 instructions (Pentium 4 or newer).
A host application that can load VST, VST3 or AAX plugins running in 32-bit or 64-bit mode.
Pro Tools (AAX): The minimum required Pro Tools version is 10.3.5.
An application to view pdf files to read this manual.
Downloads Released
System Requirements
A Mac with an Intel CPU running OS X 10.7 or newer.
A host application that can load VST, VST3, AU or AAX plugins running in 32-bit or 64-bit mode.
Pro Tools (AAX): The minimum required Pro Tools version is 10.3.5.
Miscellaneous Information
Copy ProtectionSerial Number
Max. 6 items
Latest Version Changes [view all]

apulSoft apUnmask is an audio plugin to amplify components of the audio that are psychoacoustically masked by other components.

To achieve this, apUnmask uses parts of the detector algorithm of the opus high-quality audio compression codec. Signal components that would get removed by compression are extracted. These can normally not be heard as they are masked by louder components in time and frequency. apUnmask enables amplifying and sculpting the masked content and adding it to the music.

To shape the frequencies of the extracted signal, it is fed through a linear phase graphical equalizer. It features a bezier curve smoothed frequency response without overshoot.

The result is a form of hyperrealistic audio. The process helps the listener to hear more aspects of the music at the same time. apUnmask can be used as a mastering effect or as an intelligent exciter for single instruments.

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Discussion: Active
7 August 2020 at 6:02pm

So... an upward compressor with an EQ sidechain?

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