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The Taylorator – All Your Frequencies Are Belong to Us

past two weeks or so, I've been working on constructing the Taylorator. The Taylorator is a piece of software which allows me to flood the FM broadcast band with Taylor Swift's music.

I wrote a rational resampler which does this by upsampling, linear interpolating, and decimating to the target sample rate. Performance was the name of the game, and I spent probably a week banging my head against my computer in order to get it to an acceptable level. Finally, rather than computing trig operations, a lookup table is generated which converts between phase angle and its complex number representation.

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