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: In REW, go to Preferences and configure your input and output devices. Ensure your signal chain is set "flat" with no extra effects like compression or delay enabled. 3. Calibration

: Data for your specific measurement microphone or soundcard.

Since this is a .rar file, you will need a utility like WinRAR or 7-Zip to open it. Typical contents for REW-related archives include:

If you haven't already, download the latest version of Room EQ Wizard (REW) .

: Use the EQ button in REW to automatically calculate filters that flatten your response. These filters can then be exported to hardware or software like Equalizer APO .