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.

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/)

Requirements:
- Windows Vista or later (currently only Windows 7, 8, 8.1, 10 and 11 have been tested)
- the application must not bypass the system effect infrastructure
(APIs like ASIO or WASAPI exclusive mode can not be used)

Equalizer APO is best 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.

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License

GNU General Public License version 2.0 (GPLv2)

Follow Equalizer APO

Equalizer APO Web Site

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User Reviews

  • I bought these 200 dollar head phones a couple years back, but the resident evil remakes were always too quiet. I couldn't find a setting in my software to bump it up a little further. This program did exactly what I needed thanks.
  • I was a using DFX sound enhancer, but their latest version is not as good as the previous versions, which are not available anymore. I was looking for a good alternative, and I found Equalizer APO. It's a bit difficult to use, initially, but with a few minutes to an hour of tinkering I'm getting used to it. My rating on the aspects of Equalizer APO might change overtime as I become more acquainted with the interface and the functionalities. It does work really well, and take note, I'm just a new user, first-time user to be specific. I was able to get the same effect on my Android using Viper4Android(in the past) and now RootlessJamesDSP. But in my laptop, I'm using an old Sony sound bar, and really happy to have achieved good sound with it. Installation was easy, setting it up for the first time as a first-time user is a bit scary, but with basic understanding of sound parameters, I was able to get it working. Still, I am exploring it and I'm sure a lot to learn from it.
  • Using it since 2014. It's a no-brainer for me when I reinstall my PC or upgrade it. Different sound equalizer settings for different audio devices seems to be quite common sense. It should be a native Windows feature. PS: I saw a lot of PEBKAC comments, so: git gud.
  • Same as user below. It made my audio not work
  • thanks for f***ing up my audio drivers :)
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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