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Performance of Glottal Inverse Filtering as Tested by Aeroelastic Modelling of Phonation and FE Modelling of Vocal Tract

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Performance of glottal inverse filtering (IF) is evaluated in this paper by using speech material produced with a physically-based approach represented with an aeroelastic model of vocal folds and a Finite Element (FE) model of the vocal tract for the vowel /a/. An inverse filtering algorithm was used to estimate the glottal flow from the speech pressure signal generated by the model. Comparison between the estimated glottal flow and the original flow generated by computational modelling shows that the IF method is able to yield an accurate estimate for the glottal flow provided that fundamental frequency of the sound is below 400 Hz.
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Document Type: Research Article

Publication date: 2006-09-01

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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