Harmonic Resolution vs. Critical Mass RACKS? Sonic and Engineering Differences?

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J.R. has much more accurate acoustic analysis software than my basic real time analyzer.

Of course I was very curious to use my prior methodology to see the new frequency response.

BEFORE
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AFTER
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For some reason the treble region depicted in these charts bears no relation to what anyone actually hears in the room. No one hears a roll-off starting at 2kHz. I am using a professional, extremely flat frequency response Earthworks QTC-4 microphone, so I don't think it could be explained by the microphone.

In the room we hear a flat (a little too flat for me, as I am fine to start rolling off subjectively in the treble region) frequency response.

Ron,

The poor results are due to the settings of the software and the methodology being used. It is why I have objected several times to their discussion - bad measurements improperly used that show no correlation with what we listen only spread discredit on measurements.

If you have a J.R. spectra taken in exactly the same conditions (microphone position and excitation) it can be interesting to show it to try diagnosing the problems of your RTA.