Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5059
Title: Causal-anticausal decomposition of speech using complex cepstrum for glottal source estimation
Authors: Drugman, Thomas
Bozkurt, Barış
Dutoit, Thierry
Bozkurt, Barış
Izmir Institute of Technology. Electronics and Communication Engineering
Keywords: Complex cepstrum
Glottal source estimation
Homomorphic analysis
Source-tract separation
Speech processing
Issue Date: Jul-2011
Publisher: Elsevier Ltd.
Source: Drugman, T., Bozkurt, B.,and Dutoit, T. (2011). Causal-anticausal decomposition of speech using complex cepstrum for glottal source estimation. Speech Communication, 53(6) , 855-866. doi:10.1016/j.specom.2011.02.004
Abstract: Complex cepstrum is known in the literature for linearly separating causal and anticausal components. Relying on advances achieved by the Zeros of the Z-Transform (ZZT) technique, we here investigate the possibility of using complex cepstrum for glottal flow estimation on a large-scale database. Via a systematic study of the windowing effects on the deconvolution quality, we show that the complex cepstrum causal-anticausal decomposition can be effectively used for glottal flow estimation when specific windowing criteria are met. It is also shown that this complex cepstral decomposition gives similar glottal estimates as obtained with the ZZT method. However, as complex cepstrum uses FFT operations instead of requiring the factoring of high-degree polynomials, the method benefits from a much higher speed. Finally in our tests on a large corpus of real expressive speech, we show that the proposed method has the potential to be used for voice quality analysis.
URI: https://doi.org/10.1016/j.specom.2011.02.004
http://hdl.handle.net/11147/5059
ISSN: 0167-6393
1872-7182
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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