dataFFT

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✓ Published0🌍 Public

Last edited Jun 3, 2024

Created on Jun 2, 2024

This visualization demonstrates the Fast Fourier Transform (FFT) by plotting the frequency spectrum of a signal, showing a scatter plot of frequency peaks against their amplitudes. A CSV file containing signal data is fetched and processed through a naive Fourier transform algorithm, which calculates the real and imaginary components, amplitude, and phase for each frequency bin. The resulting data is rendered as a line chart of amplitude versus frequency using D3's `scaleLinear`, `line`, and `extent` functions, with axes and labels configured via the `@drbagwell/responsive-viz-axes` library. The visualization includes a gray inner plotting area and a black line trace, illustrating the spectral content of the input signal.

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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