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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I usually rate and review only programs that I really use. This one is a diamond! Windows 10 doesn't have EQ nor it's shipped with Realtek utility. I can set EQ with VLC, but it's not system wide (I regularly use Kodi). Equalizer APO is easy to install, it has GUI to setup config. I don't use anything fancy: I set preamp to my liking and set EQ also to my liking, one for headphones and one for speakers. That's it, and I don't need to touch it at all, it starts silently with Windows, runs in the background, no worries at all. Thanks to developers!
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Please make this as well as PEACE for Android 🙂
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To be perfect, it's just missing a graphical interface with configurations on the same level.
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Unlike most reviewers, I have little need for equalisation as I mainly need to listen to spoken words. However, my Clevo laptop computer, in common with many others, has insufficient built-in speaker volume; even at maximum speech is not loud enough to understand fully. I tried all manner of things to improve this, without success; but Equalizer APO boosts the volume as much as I want, so is the solution to a significant problem - I use 16dB of preamplification, and change nothing else. The program simply runs in background, I don't normally open it. I haven't experimented with actual equalisation, though I expect it would be helpful. One comment: after most major Windows 10/64 updates once or twice a year, the volume often reverts to its unsatisfactory low performance. Running Equaliser APO again and maybe changing the boost by a minimal amount and saving the settings sorts this out. After Win10 updated itself to build 1809 in May 2019, Equaliser APO said that a registry setting had been changed, and repaired it to restore full volume.