Equalizer APO is a parametric / graphic equalizer for Windows. It is implemented
as an Audio Processing Object (APO) for the system effect infrastructure
introduced with Windows Vista.

Requirements:
- Windows Vista or later (Windows 7 - 11 have been tested)
- CPU architecture x64 (64 bit), x86 (32 bit) or ARM64 (on Windows 10/11)
- applications must not bypass the system effect infrastructure
(APIs like ASIO or WASAPI exclusive mode can't be used)

Equalizer APO can be used in conjunction with Room EQ Wizard (http://www.roomeqwizard.com/), because it can read its filter text file format.

Please have a look at the Wiki (http://sourceforge.net/p/equalizerapo/wiki/) for instructions on installation and configuration

Features

  • virtually unlimited number of filters
  • works on any number of channels
  • very low latency, which makes it suited for interactive applications
  • low CPU usage
  • modular graphical user interface
  • VST plugin support
  • integrates into Voicemeeter (http://www.voicemeeter.com/)

Project Samples

Project Activity

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License

GNU General Public License version 2.0 (GPLv2)

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Equalizer APO Web Site

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User Reviews

  • Don't listen to the 1* reviews. The software is brilliant, works perfectly. I was using AudioEqualizer EQ on chrome and was temperamental at best. This is the nuts. bass is super clean and powerful with literally no distortion. 5 stars
  • Together with Peace EQ it helps a lot of people, Thx Sir!! Btw...I use it for my desktop setup Equalizer APO->FiiO K11->Fosi V3->Dali Oberon 1 that gives great sound.
  • Installed Equaliser APO it sound instant nice Logitech Z906 then Peace equaliser nice extra tune
  • Impressive, thanks heaps for making this, and for making it open source! I use it with my Kali LP6-v2 and I am impressed.
  • As an audiophile since childhood, I have always used a 10-band equaliser on all my devices, including my Creative SoundBlaster card. I recently purchased a mini PC that lacks this feature; the above APO with Peace interface it works perfectly to tune my 5.1 home theatre with plenty of options for Windows 11. Love from London!
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Additional Project Details

Operating Systems

Windows

Languages

English, German

Intended Audience

Advanced End Users, End Users/Desktop

User Interface

Non-interactive (Daemon), Qt

Programming Language

C++

Related Categories

C++ Sound Audio, C++ Home Theater PC Software

Registered

2012-09-13