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Old 11-17-06, 05:02 AM   #2 (Link)
Shez
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Alias: Shez
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Since: Oct 2006
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Re: accuracy of REW for full range measurements?


Your purple trace looks like something is causing comb filtering. This happens when you mix a signal with a very slightly delayed version of itself. Check your routing to make sure you're only capturing the signal from the mic and not accidentally mixing it with the actual test signal.

(You can work out how long the delay is given the frequency of the first null but my brain doesn't feel like trying that right now...)


Last edited by Shez; 11-17-06 at 05:02 AM.. Reason: Edited for typo

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