I know pretty well shanon nyquist theorem, it’s more the reconstruction filter oscillation I would like to understand.
I will try to find something to read!
Thank you very much John!
Ok thank you John. Do you have technical read to share that explain this behaviour? I'm a software and electronic engineer, but it is a shame I don't really get what is this phenomenon :)
Does it mean, I can perform my measurement at higher sample rate (96KHz) and then filter above 20K to see the real impulse response?
Is there a way to do that?
Hello,
My system is MacBook Pro M1 + Audient ID44 interface running REW 5.20.4 under macOS Big Sur 11.6.
I did an impulse response measurement while using REW in loopback (ID44 output 2 directly into ID44 input 4).
What I observe is large oscillations. It looks like I have an issue, but I...
Thank you for this answer John.
I now have more questions:
1/ I checked "Adjust clock with acoustic ref" is it activated for future measurement only? Can I apply it to previous measurement?
2/ will "Adjust clock with acoustic ref" lead to good enough results or would it be better to to buy a xlr...
Hello,
I run REW v5.20 RC9 on an Apple MacBook Pro with M1 processor.
I output sound from an Audient ID44 and my mic is a UMIK-1.
While doing measurement of speakers in a room, I found out that results vary with different value for the sweep length. Moreover all the impulse shows strange...
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