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 Ratings

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User Reviews

  • It damaged the audio system on my operating system even though I made no configuration changes. I only installed the driver for my audio device and launched the equalizer interface. After that, the sound system was broken, and I was unable to revert the changes. Restoring a previously saved system restore point did not help. Do not install this piece of software.
  • excellent
  • This is the software I have been looking for. FINALLY my computer sounds great!
  • Amazing app that i have been using for over years. It just upgrades my speaker to another premium level. Suggest to embed it inside Windows as default driver for everyone. Perfer to have Traditional Chinese translation.
  • Ik heb hele goede speakers maar met Equalizer APO komen ze helemaal tot hun recht. Het heeft nog nooit zo goed gehoord als nu. Het programma is stabiel en werkt perfect het doet wonderen. Het is perfecte software. De donkere modus is ook geweldig. Ik ben helemaal tevreden en het is boven verwachting uit. Ik kan het iedereen aanraden. Dankje voor deze goede software, mijn complimenten.
    1 user found this review helpful.
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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