Waterfall Graph and quasi-anechoic measurements

[ssalyer007]

Hello all!

I imagine this has been discussed on here somewhere but I haven't stumbled onto it.

I'm doing quasi-anechoic measurements for crossover design and would like to view the waterfall plots of the gated response. It seems I'm getting the room measurements included even when I have the Impulse window set to 5ms, which gets reflection free measurements down to 200HZ.

Attached is a waterfall graph from CLIO that I'm trying to replicate in REW.

Now a waterfall graph from REW which appears to include room measurements

Anyone have settings suggestions that could help?

Thanks in advance!

 

[John Mulcahy]

Select CSD mode, rise time 1 ms, window 5 ms, time range 5 ms. You can try different window and time range settings.