Comparison of two inverse filtering methods in parameterization of the glottal closing phase characteristics in different phonation types
2007 (English)In: Journal of Voice, ISSN 0892-1997, E-ISSN 1557-8658, Vol. 21, no 2, 138-150 p.Article in journal (Refereed) Published
Inverse filtering (IF) is a common method used to estimate the source of voiced speech, the glottal flow. This investigation aims to compare two IF methods: one manual and the other semiautomatic. Glottal flows were estimated from speech pressure waveforms of six female and seven male subjects producing sustained vole /a/ in breathy, normal, and pressed phonation. The closing phase characteristics of the glottal pulse were parameterized using two time-based parameters: the closing quotient (C1Q) and the normalized amplitude quotient (NAQ). The information given by these two parameters indicates a strong correlation between the two IF methods. The results are encouraging in showing that the parameterization of the voice source in different speech sounds can be performed independently of the technique used for inverse filtering.
Place, publisher, year, edition, pages
2007. Vol. 21, no 2, 138-150 p.
inverse filtering, glottal flow, closing quotient, normalized amplitude quotient
IdentifiersURN: urn:nbn:se:kth:diva-40755DOI: 10.1016/j.jvoice.2005.10.007ISI: 000244973300002PubMedID: 16478660ScopusID: 2-s2.0-33847290351OAI: oai:DiVA.org:kth-40755DiVA: diva2:443131
33rd Annual Symposium on Care of the Professional Voice Location: Philadelphia, PA Date: JUN 03-06, 2004 2011-09-232011-09-202011-09-23Bibliographically approved