Monthly archive of September, 2009

Another line of code

We don’t need no documentation
We don’t need no source control
No dark sarcasm in the conf-room
Hey! PMs! Leave them devs alone!
All in all it’s just another line of dumb code
All in all you’re just another line of damn code


Experiments: Pitch perception

Natural or instrumental sounds usually consist of complex harmonic structure. In this post I’ll try to explore basics of human pitch perception.

According to wikipedia: “Pitch represents the perceived fundamental frequency of a sound”. Let’s try to validate it on a simple example – sample consisting of 4 harmonics – integer multiples of 440Hz: 440Hz, 880Hz, 1320Hz, 1760Hz. Below you can find a recording of the sample repeated four times, each time followed by a single successive harmonic:

Sound followed by each of 4 harmonics

Sound followed by each of 4 harmonics

4 harmonics (Timbre file – pitch 440 with 4 harmonics) …read more >>

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