Browse Teach Curate

Estimating F₀ by Autocorrelation

The standard pitch-tracking method, and the one behind the voice-pitch phenotype in the seed paper. Autocorrelation asks how far you must shift a slice before it best matches itself; that lag is the period. Teaching the mechanism is what makes the next node's failure mode predictable rather than mysterious.

Questions this Concept answers

Why does shifting a periodic signal by exactly one period make it correlate strongly with itself?

jeremy Video

The YIN Pitch Detection Algorithm for Audio Signal Processing

Pitch detection in audio signal processing relies on estimating a signal's period (and hence its fundamental frequency, via the inverse relationship f = 1/T), since perceived pitch corresponds to the…

Estimating F0 by Autocorrelation

Questions this Concept answers

The YIN Pitch Detection Algorithm for Audio Signal Processing

Estimating F₀ by Autocorrelation