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

Peace Equalizer Add-on

Peace equalizer is a Windows PC interface for Equalizer APO. Besides an system-wide audio equalizer on your Windows PC, Peace has an effects panel for balance, crossfeeding, delay, etc., a graph window and much more.

Installation: Download and install Equalizer APO first. Then, download and install Peace Equalizer Add-on.

Note: After a Windows update a re-install of Equalizer APO might be needed.

Peace Equalizer Add-on Features

  • Up to 31 gain dB Equalizer sliders per channel/speaker (or unlimited if you will)
  • 9 speakers support (all, stereo, 5.1, 7.1 or your own setup)
  • Filter frequencies, dB gains, filter qualities can all be changed per slider
  • Filters: peak, low/high pass and shelf, band, notch, all pass and many others
  • Pre amplifying dB values for volume control (per channel/speaker)
  • Graph of your filters per speaker
  • AutoEQ interface: easy equalizing for specific headphones
  • Make, save and activate own equalizer configurations (presets)
  • Select a device for your equalizer configuration
  • Besides your own presets, there are dance, rock, classic, bass boost, etc.
  • Effects like down/up mix, crossfeed, bass and treble, channel routing
  • Control by Windows system tray, hotkeys and desktop shortcuts
  • Headphones and hearing test interface for creating equalizations based on your headphones/hearing
  • Support of hardware MIDI controllers for controlling almost every feature
  • Automatic activation by program start and device selection
  • Languages: English, Čeština, Deutsch, Español, Français, Nederlands, Italiano,Português, Pусский, Türkçe, Українська, Cрпски, 简体中文, 繁體中文
  • support for themes

What's New

  • Added: Update Checker that can be enabled in the installer. If enabled, will check for a new version daily and show a popup window when an update is available.
  • Added: Support for Arm64 architecture (Windows on ARM). Same functionality as on 32 bit (now x86) and 64 bit (now x64) versions but limited VST support as native ARM64 VST plugins are needed.
  • Improved: Updated to FFTW 3.3.10 and libsndfile 1.2.2.