PitchYinProbabilitiesHMM

standard mode | Pitch category

Inputs

  • pitchCandidates (vector_vector_real) - the pitch candidates
  • probabilities (vector_vector_real) - the pitch probabilities

Outputs

  • pitch (vector_real) - pitch frequencies in Hz

Parameters

  • minFrequency (real ∈ (0, ∞), default = 61.735) :
    minimum detected frequency
  • numberBinsPerSemitone (integer ∈ (1, ∞), default = 5) :
    number of bins per semitone
  • selfTransition (real ∈ (0, 1), default = 0.99) :
    the self transition probabilities
  • yinTrust (real ∈ (0, 1), default = 0.5) :
    the yin trust parameter

Description

This algorithm estimates the smoothed fundamental frequency given the pitch candidates and probabilities using hidden Markov models. It is a part of the implementation of the probabilistic Yin algorithm [1].

An exception is thrown if an empty signal is provided.

References:
[1] M. Mauch and S. Dixon, "pYIN: A Fundamental Frequency Estimator Using Probabilistic Threshold Distributions," in Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014)Project Report, 2004

Standard algorithms

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