ernestcarl
Major Contributor
I did a measurement of the subwoofer alone (mic at my listening position), before and after EQ. After eq, when I click on estimate IR delay, I got ~-17ms. Before eq, I got around -0.04ms. The subwoofer is right below my desk, ~15cm away from me.
What does the -17ms value mean? How do I use this value?
This is my rew measurement (The measurements are done at 2 different Windows volume, because it's too loud unequalized): https://app.box.com/s/6p5mmci1xgnjtf3cox7sratszhqq6mi9
These are my subwoofer eq filters:
Subwoofer before IR delay shift
After Estimation and IR delay shift. So what's the significance of this?
Sorry, you actually meant this:
The estimate is not going to be correct. It will add ~17ms delay as a timing offset to try again, but when you remeasure with said offset, REW then tells you need to subtract 5ms again... agh... so you go back to the original ~11ms delay suggestion. There is still much that I don't know about REW, but this does not seem to be of much practical help.