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Discussion in 'Official REW (Room EQ Wizard) Support Forum' started by Zurab, Nov 25, 2018.
Hi How to solve this problem?
The end frequency of your measurement is too low, try using 10 kHz.
I use these settings here, and I’m not calculating. Where do I need to change 10kHz
I changed the settings to 10kHz now there is no this message, but the equivalent volume is still not calculated
Is that after pressing Calculate parameters? Please post an mdat file with the measurements rather than screen shots. I also suggest using single sweeps. 7g looks like a lot of added mass for that driver by the way, the peak frequency only need to shift by 20% or so to get accurate results. High mass can cause odd behaviour.
Here is my data
Thanks. The mass is too high for REW to locate the peak in the added mass trace. Try with a much smaller added mass, in the meantime I'll see if I can make the peak search better able to cope with small peaks.
I tried to measure with different loads 1g and 4g does not work
OK, thanks. I've made some modifications to the code to accommodate the low peak levels, those will be in the next beta in a week or two from now. The results with the 7g test aren't very meaningful, if you attach the 1g and 4g measurements I can run those and post the results.
I made these measurements measurements with 1g could not do
Thanks. How are you supporting the driver for the measurements?
UR22 MkII USB
I was meaning physically, is the driver hung from a wire, mounted on something...
YD103-12 8Om 10W
Here are the results for 3g, 5g and 7g. The 3g measurement has the best model fit so I would have more faith in those figures.