DFT and FFT Implementation

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DFT and FFT Implementation

✓ Published0🌍 Public

Last edited Jun 10, 2024

Created on Jun 10, 2024

This visualization compares the Discrete Fourier Transform (DFT) and Fast Fourier Transform (FFT) algorithms for spectral analysis. It plots frequency peaks of sine wave data, showing signal amplitude against frequency to reveal the dominant frequencies in a combined test signal. The implementation includes custom JavaScript classes for both transforms, using typed arrays for performance, and renders the results as a line chart with D3.js scales and axes. The visualization also includes a basic Fourier transform implementation for calculating the power spectrum.

AI-generated description

Overview Time to dabble with the infamous FFT in javascript. Anyone consider themselves a Subject Matter Exper (SME) please feel free to offer up advice, tips etc. Goal is to generate a 80hz sine wave as test data. then perform a FFT, and power spectrum, and display results of all.

https://www.youtube.com/watch?v=mkGsMWi_j4Q

MIT Licensed

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