Pitch period estimation using multipulse model and wavelet transform

2007 ◽  
Author(s):  
Prasanta Kumar Ghosh ◽  
Antonio Ortega ◽  
Shrikanth S. Narayanan
Keyword(s):  
Wavelet Transform ◽  
Pitch Period ◽  
Period Estimation

scholarly journals Open Quotient Measurements Based on Multiscale Product of Speech Signal Wavelet Transform

2007 ◽  
Vol 2007 ◽  
pp. 1-5 ◽  
Author(s):  
Aïcha Bouzid ◽  
Noureddine Ellouze
Keyword(s):  
Wavelet Transform ◽  
Relative Error ◽  
Speech Processing ◽  
Speech Signal ◽  
Accurate Estimation ◽  
Pitch Period ◽  
Open Time ◽  
Wide Range ◽  
Voiced Speech ◽  
Egg Signal

This paper describes a multiscale product method (MPM) for open quotient measure in voiced speech. The method is based on determining the glottal closing and opening instants. The proposed approach consists of making the products of wavelet transform of speech signal at different scales in order to enhance the edge detection and parameter estimation. We show that the proposed method is effective and robust for detecting speech singularity. Accurate estimation of glottal closing instants (GCIs) and opening instants (GOIs) is important in a wide range of speech processing tasks. In this paper, accurate estimation of GCIs and GOIs is used to measure the local open quotient (Oq) which is the ratio of the open time by the pitch period. Multiscale product operates automatically on speech signal; the reference electroglottogram (EGG) signal is used for performance evaluation. The ratio of good GCI detection is 95.5% and that of GOI is 76%. The pitch period relative error is 2.6% and the open phase relative error is 5.6%. The relative error measured on open quotient reaches 3% for the whole Keele database.

A hybrid pitch period estimation method based on HNM model

ELMAR 2007 ◽  
2007 ◽  
Author(s):  
Martin Turi Nagy ◽  
Gregor Rozinaj ◽  
Andrej Palenik
Keyword(s):  
Estimation Method ◽  
Pitch Period ◽  
Period Estimation
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