Quote:
|
can you be more precise about the Q setting
|
When you take a full range measure you will see a very jagged looking response when the frequency gets above 500Hz. In fact it often looks so bad, many think they've made a mistake. They haven't. The jaggedness is a result of comb filtering reflections.
To get a better feel for the underlying trend of the signal (and to come a little closer to how we actually hear) you need to turn on smoothing feature. Use 1/6th or 1/3rd octave smoothing. (remember, smoothing is not for low frequency measurements as it would obscure the true shape of the response and so not allow accurate correction filters to be determined).
Now you can see the response much better when the smoothing is on. This also reveals that it would be pretty silly to start using narrow bandwidth (high Q) filtering. You really need to use the type of filter a typical equalizer would provide (i.e. low Q, 1/3 octave or greater).
brucek