Fork of FFT-tremor-analysis

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Fork of FFT-tremor-analysis

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Last edited Jul 4, 2024

Created on Jul 4, 2024

This visualization displays the frequency spectrum of a single signal, the heart rate data, after applying a Fast Fourier Transform (FFT). The chart plots frequency bins against the raw magnitude, showing the signal's energy distribution across frequencies. The code implements a custom radix-4 FFT class, then uses D3.js functions including `scaleLinear`, `extent`, and `line` to render the plot, with axes from `@drbagwell/responsive-viz-axes`. The data is sourced from `@drbagwell/tremor-analysis-data`.

AI-generated description

Overview Time to dabble with the infamous FFT in javascript. Starting with a simple script to generate sine waves for testing.

'Double-sided Magnitude spectrum'

Discrete Fourier Transform - Simple Step by Step https://www.youtube.com/watch?v=mkGsMWi_j4Q

Understanding the Discrete Fourier Transform and the FFT https://www.youtube.com/watch?v=QmgJmh2I3Fw&t=3s

MIT Licensed

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