eli5 How does the brain separate out frequencies it’s hearing so that we can make out different instruments in a song? It seems like some insanely complex analysis behind the scenes??
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What your brain receives as information isn‘t a complex wave, like you‘d see in audio software.
The cochlea has around 25.000 little hairs that are responsible for detectibg certain frequencies. So instead of all frequencies mashed together as one wave, your brain receives several separate waves, which makes recognizing easier
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