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How the cochlea computes (2024)

(www.dissonances.blog)
475 points izhak | 1 comments | 30 Oct 25 17:01 UTC | HN request time: 0.217s | source
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superb-owl ◴[30 Oct 25 19:36 UTC] No.45764343[source]▶
The title seems a little click-baity and basically wrong. Gabor transforms, wavelet transforms, etc are all generalizations of the fourier transform, which give you a spectrum analysis at each point in time

The content is generally good but I'd argue that the ear is indeed doing very Fourier-y things.

replies(2): >>45766470 #>>45766849 #
1. fat_cantor ◴[30 Oct 25 23:51 UTC] No.45766849[source]▶
It's a graduate student writing a journal club article about the Lewicki 2002 paper, which is very good, and whose abstract states the idea more precisely: "The form of the code depends on sound class, resembling a Fourier transformation when optimized for animal vocalizations and a wavelet transformation when optimized for non-biological environmental sounds"