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The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

Direct estimation of the vocal tract shape by inverse filtering of acoustic speech waveforms

Wakita, H.·1973·IEEE Transactions on Audio and Electroacoustics

Abstract

This paper describes a new method for estimating the vocal tract area function directly from the acoustic speech waveform. Dynamic changes of the area functions and formants in voiced speech sounds are obtainable. The filtering processes of the inverse filter model and an acoustic tube model of speech are analyzed and they are shown to be identical, with the reflection coefficients in the acoustic tube model as a common factor, thus making possible the extraction of the reflection coefficients by the inverse filter processing of the speech signal. The discrete area function can easily be obtained from the set of reflection coefficients. Analysis examples for vowels, diphthongs, and consonants in vowel-consonant-vowel utterances are given.

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Metadata

Authors
Wakita, H.
Venue
IEEE Transactions on Audio and Electroacoustics
Published
1973-10
Volume
21
Issue
5
Pages
417-427
ISSN
0018-9278 (ISSN-L)
OpenAlex
W2013139082
Cited by
261
References
5
FWCI
7.28
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Direct estimation of the vocal tract shape by inverse filtering of acoustic speech waveforms. https://app.cochat.ai/papers/10.1109/tau.1973.1162506
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Wakita, H. (1973). Direct estimation of the vocal tract shape by inverse filtering of acoustic speech waveforms. IEEE Transactions on Audio and Electroacoustics. https://doi.org/10.1109/tau.1973.1162506

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.