News for hackers. Stuff that matters.

A comment on Show HN: HiFiScan, a Python app to optimize your loudspeakers. Parent comment

Re:Show HN: HiFiScan, a Python app to optimize your loudspea... by willis936 on Sunday September 11, 2022 @10:14AM (#32799785)
Anyone interested in this area should also know that above ~2 kHz it doesn't matter what you do for magnitude equalization because you'll be dominated by sub mm variations in position and direction. The only way to get any amount of repeatability above 2 kHz is with IEMs.
[ Parent | on HN ]
Re:Show HN: HiFiScan, a Python app to optimize your loudspea... by erdewit on Sunday September 11, 2022 @10:29AM (#32799906)
This is dealt with by smoothing the spectrum in a way to preserves the power density. The constructive and destructive interference then cancel each other out.
[ Parent | on HN ]
Re:Show HN: HiFiScan, a Python app to optimize your loudspea... by Gracana on Sunday September 11, 2022 @10:31AM (#32799921)
What does "smoothing the spectrum" mean? What operations are being performed?
[ Parent | on HN ]
Re:Show HN: HiFiScan, a Python app to optimize your loudspea... by danuker on Sunday September 11, 2022 @04:48PM (#32803136)
I'd guess: Fourier transform, a power density preserving blur convolution, then inverse Fourier transform.

But I am not familiar with the field of signal processing.

[ Parent | on HN ]
Re:Show HN: HiFiScan, a Python app to optimize your loudspea... by willis936 on Sunday September 11, 2022 @07:46PM (#32804352)
That's my guess too but my hunch is that would sound like absolute crap. Intentional IMD. Something to experiment with.
[ Parent | on HN ]