I have a graphic EQ connected to my amp which I want to calibrate for a flat response. I've read somewhere that you can't calibrate a EQ by ear using test tones (different frequencies at same volume) but I'm wondering if I can connect my laptop to a mic and run a dB meter program on it in order to accurately depict the sound of the test tones. Using the dB meter, I can then set my EQ properly so that all the tones sound the same.
Will this technique work? I dont need perfect calibration, I just want it to be reasonable calibrated.