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Old 04-25-08, 04:16 PM   #1 (Link)
 
robbyho
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Sweeps show a drastic rise. need help


I've used REW for the past 3 years and haven't had an issue with it until now.

The measurements that I took today all show a 20db rise during the course of the measurement along with the usual FR deviations that I would expect. It is as if the program or the sound card is measuring the response with some sort of weighting.

Any ideas as to what causes this? I've done it with two different laptops using the most recent version of REW. I've swapped sound cards, mics, cables, pre amps, and more with the same results. The sound settings on the computers seem ok.

This is a quick shot of what I mean. It is happening to all my measurements with the new version, not sure about the older versions.

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File Type: jpg troubleshooting rise.jpg (67.5 KB, 70 views)

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