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psmokotnin / osm

Open sound meter. FFT based application for tuning sound systems.
GNU General Public License v3.0
222 stars 35 forks source link

Polar diff slightly off? #84

Closed simonjohansson closed 5 months ago

simonjohansson commented 9 months ago

Hello! I don't really know what Im doing, Im just trying to align my sub. Presumably Im missing something, but just in case Ive stumbled across a bug.

I would expect the diff to be 0 where the two phases cross, but as you can see from the screenshot it's around 10 degrees.

Screenshot 2023-11-21 at 23 48 23

If I diff the sub/speakers with itself the line is static at 0 degrees.

Running 1.3

Thanks!

psmokotnin commented 5 months ago

that happens due to the spectral average in the charts.