Convolver spectrum view and combining

[pglizniewicz]

I'm playing with the convolver and I have some questions. I have two impulse responses (used for headphone calibration, I somehow can't attach them here directly despite GitHub saying .wav files are supported):

• A.wav
• B.wav

A.wav is a 48000 Hz, 2048 samples long, 32-bit floats single channel IR. REW displays it as expected:

but EasyEffects shows it this way:

what I don't understand.

B.wav is a 48000 Hz, 512 samples long, 32-bit floats stereo IR. Again, REW displays it as expected:

but EasyEffect on the other hand:

Can anyone explain, what I see in EasyEffects? Am I misunderstanding the Spectrum option?

Another problem is combining them. EasyEffects will let me combine them, but after I do it, it will fail to load it, again, I'm not sure why.

[wwmm]

Can anyone explain, what I see in EasyEffects? Am I misunderstanding the Spectrum option?

I have never used REW. But based on the definition of SPL at https://www.roomeqwizard.com/help/help_en-GB/html/splmeter.html#top it does not seem to be the same kind of calculation as the one done in EasyEffects. We just calculate the Fourier transform of the impulse file. Nothing more. It is essentially the same operation we do in our spectrum plugin. The SPL calculated by REW on the other hand has even weighting modes. And its site talks about some kind of integration done to the signal.

It is always possible there is wrong on our side. But at first sight it does not look like REW is calculating the same thing.

[wwmm]

Another problem is combining them. EasyEffects will let me combine them, but after I do it, it will fail to load it, again, I'm not sure why.

Hum... Try to put your impulse files in a zip file. Github should allow them to be attached this way.