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Equalizer APO

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 Requirements:
  • Windows Vista or later (currently only Windows 7, 8, 8.1 and 10 have been tested)
  • Sound card driver must support APOs (this includes most onboard sound drivers)
  • The application must not bypass the system effect infrastructure (APIs like ASIO or WASAPI exclusive mode can not be used)