Fourier Transform for Hearing Devices

 

A hearing aid has approximately 9 – 16 microphones, each receiving different sound waves. Fourier transform comes into picture when filtering out these sound waves. Hearing aids are also designed to adjust well based on the environment. That is, the sound of the person you are talking to still stands out despite despite the different noise sources in the environment (thanks to Fourier transform).

 

Source: https://cadcammodelling.wordpress.com/2011/04/14/fourier-transform-and-its-applications/

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