Hello
I dont understand why measuring with a feedback - reference loop REW measures unreadable phase data. On the contrary, with no timing reference it measures a nice looking phase response.
No reference
with reference
When I do a sound test, the levels indicate the mic is on the measurement tab and the loopback is on the reference tab.
Thanks
A
I dont understand why measuring with a feedback - reference loop REW measures unreadable phase data. On the contrary, with no timing reference it measures a nice looking phase response.
No reference
with reference
When I do a sound test, the levels indicate the mic is on the measurement tab and the loopback is on the reference tab.
Thanks
A
When you measure with a loopback as the timing reference you will need to have a timing offset to remove the time it takes for the signal to arrive at the microphone. REW can estimate and set that for you using "Estimate IR delay" in the controls.