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Aug
25

Fun with FFT

This is a project that I threw together one weekend.  The FFT is calculated using Processing. The FFT is then sent to the Freeduino via the serial port. The Freeduino displays the FFT on the dot matrix display using shift registers and a Darlington transistor array.

2 comments

  1. Dave Deriso says:

    Hi Kris,

    Awesome work! I was wondering if your DFT library was expandable for doing something like a Welch’s PSDE algorithm? (https://ccrma.stanford.edu/~jos/mdft/Power_Spectral_Density_Estimation.html).

    Theres some discussion of this here:

    http://neuroelec.com/2011/03/fft-library-for-arduino/

    Thanks!!

    Dave

  2. Kris says:

    Hi Dave,

    I didn’t write my own FFT library. I used an existing library for Processing, so I am not sure if it can be expanded for PDSE. Sorry, I couldn’t be more helpful.

    Thanks for the comment!

    Kris

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