On the Use of Wavelets and Cepstrum Excitation for Pitch Determination in Real-Time

Fadoua Bahja 1 El Hassan Ibn Elhaj 2 Joseph Di Martino 3
1 GSCM-LRIT - Laboratoire de Recherche en Informatique et Télécommunications [Rabat]
2 INPT - Institut National de Postes et Télécommunications [Rabat]
3 PAROLE - Analysis, perception and recognition of speech
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : In the current paper, we propose a new pitch tracking technique based on a wavelet transform in the temporal domain. Our algorithm is designed to determine the pitch frequency of the speech signal using a simple voicing decision algorithm. The pitch period is extracted from the cepstrum excitation signal processed by a wavelet transform; then the pitch contour is refined by thresholding and correction algorithms without any post-processing. The results obtained show that the proposed algorithm provides very good pitch contours compared to those furnished by the Bagshaw database.
Keywords : Wavelet cepstrum excitation real-time pitch tracking
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Conference papers
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Fadoua Bahja, El Hassan Ibn Elhaj, Joseph Di Martino. On the Use of Wavelets and Cepstrum Excitation for Pitch Determination in Real-Time. 3rd International Conference on Multimedia Computing and Systems - ICMCS'12, May 2012, Tangier, Morocco. ⟨hal-00761819⟩

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