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 and 10 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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User Ratings

★★★★★
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172
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7
1
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ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5

User Reviews

  • Very nice! But not works after the Windows update to version 11
    1 user found this review helpful.
  • This looks like super powerful software, just don't expect to install it, hit a few buttons, and have your sound output equalized. This, and the recommended Room EQ Wizard which is used with it, are complex programs and require quite a bit of time to understand and use correctly. I gave up after an hour. One would think that there could be a simple "wizard" mode where the software ramps the frequency sent to the speakers, reads the sound levels from the microphone, and generates the necessary magic eq configuration files automatically and done. Of course the mic should be calibrated, etc., but this would get someone going with this tool, and would be all many would need. The star rating is definitely user experience dependent: 1 star if the user needs something quick and easy, 5 stars for someone wanting precision and willing to spend time learning to use these tools.
  • Installed it, was very enthusiastic and then it stopped working. None of the fixes or configuration settings worked except for installing Peace GUI which is ugly and slow and doesn't seem to support VST plugins, which were the whole reason why I installed Equalizer APO. It's a great program, if it works. It's also infinitely better, faster, more functional and prettier without the useless and slow Peace GUI, if it works.
  • hi guys, . . . what about this? . . . i'm getting a 1/70 scan @ virustotal_com . . . Trapmine . . . suspicious.low.ml.score . . . 20190301 . . . -=- virustotal_com/en/file/29dff1ba1221939aa805182771fd17fa71ae05a54fa97fd4a3641a521bf19e1c/analysis/1551638923/
    1 user found this review helpful.
  • I also dig this software BUT i have experienced issues with this working with Realtek drivers. Either my sound stops working, and i need to reinstall my sound drivers, and then i need to reinstall Equalizer APO, so for me it is a 5 out of 10 rating. Also the gui crashes for me when i run it in windows 7 64 bit BUT it is fine in windows 32 bit, i have tried different old and new versions.
    1 user found this review helpful.
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Additional Project Details

Languages

English, German

Intended Audience

Advanced End Users, End Users/Desktop

User Interface

Non-interactive (Daemon), Qt

Programming Language

C++

Registered

2012-09-13