Robust F0 estimation of speech signal using harmonicity measure based on instantaneous frequency

Dhany Arifianto*, Tomohiro Tanaka, Takashi Masuko, Takao Kobayashi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Borrowing the notion of instantaneous frequency that was developed in the context of time-frequency signal analysis, an instantaneous frequency amplitude spectrum (IFAS) is introduced for estimating fundamental frequency of speech signal in both noiseless and adverse environments. We define harmonicity measure as a quantity that indicates degree of periodical regularity in the IFAS and that shows substantial difference between periodic signal and noise-like waveform. The harmonicity measure is applied to estimate the existence of fundamental frequency. We provide experimental examples to demonstrate the general applicability of the harmonicity measure and apply the proposed procedure to Japanese continuous speech signals. The results show that the proposed method outperforms the conventional methods with or without the presence of noise.

Original languageEnglish
Pages (from-to)2812-2820
Number of pages9
JournalIEICE Transactions on Information and Systems
Issue number12
Publication statusPublished - Dec 2004
Externally publishedYes


  • Fundamental frequency estimation
  • Harmonicity measure
  • Instantaneous frequency amplitude spectrum


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