Recent content by John Mulcahy

It categorically does not. The arithmetic is correct. Garbage in, garbage out.

Cabinet resonances are very short duration and have very low amplitude, they make no measurable contribution to RT60. Ported speakers have a port resonance (that's the purpose of the port).

I could increase the channel count that can be mapped, what's a sensible number?

REW has assignments for the 16 ATMOS channel names plus a reference. You can change the physical mapping (and/or the labels) of those names to hardware channels using the Output mapping button in the soundcard preferences, so you can access any 16 hardware channels at a time.

Yes, since that is the impulse response. Normalization would only apply a dB offset. Factors that may have been in the original measurement and may apply differently to the import include: The window widths, types and reference position, the import would apply the default windows from the...

Isn't the mic output balanced? Just need to swap the connections at the XLR.

Wouldn't it be easier to just fix the wiring for the inverted microphones?

Those levels are not meant to match, that's only for testing electronics or loopbacks. Typical mic input levels are around -60 dBFS.

Don't use that. Use Java drivers in REW and choose the device names that start with EXCL.

Odd, works perfectly for me.

To do arithmetic on the magnitudes with whatever smoothing you prefer use Magnitude copy to copy the response magnitudes, smooth the copies as desired, then do the arithmetic.

I expect you are not comparing like with like. REW's trace arithmetic on measurements with impulse responses is carried out on the underlying unsmoothed data, that's the only way to do it to obtain correct result. If you want to do arithmetic on smoothed results you would need to extract that...

It is. Using 1/3 smoothing is just hiding the variations from yourself.

I don't understand, sorry. The level is already shown numerically, what would a meter add? Your measurements are inconsistent, showing variations that cannot be attributed to the cal file. Here is a comparison of your UMIK-2 original cal file measurement with its cal removed versus your no cal...

V5.40 Beta 127 supports multiple measures for each meter: