Cockos Incorporated Forums - View Single Post - ReaEQ shows incorrect phase plot? (FIXED)

Robert Randolph · 09-21-2017, 12:30 PM

So I think there is definitely a bug with the phase shift display in ReaEQ.

Take this example with a notch filter at 1khz. A notch filter should present a 90° phase shift at 1khz since the correlation being measured is no signal to full amplitude signal, which is 90° rotation.

Taking a measurement confirms this

This is taken with REW and shows the expected 90° shift at 1khz.

Testing against DMG Equilibrium, which has a free phase design mode, confirms the REW measurements are correct.

09-21-2017, 12:30 PM	#13
Robert Randolph Human being with feelings Join Date: Apr 2017 Location: St. Petersburg, FL Posts: 880	So I think there is definitely a bug with the phase shift display in ReaEQ. Take this example with a notch filter at 1khz. A notch filter should present a 90° phase shift at 1khz since the correlation being measured is no signal to full amplitude signal, which is 90° rotation. Taking a measurement confirms this This is taken with REW and shows the expected 90° shift at 1khz. Testing against DMG Equilibrium, which has a free phase design mode, confirms the REW measurements are correct. Last edited by Robert Randolph; 09-21-2017 at 01:31 PM.