Information Services banner Edinburgh Research Archive The University of Edinburgh crest

Edinburgh Research Archive >
Centre for Speech Technology Research >
CSTR publications >

Please use this identifier to cite or link to this item:

This item has been viewed 56 times in the last year. View Statistics

Files in This Item:

File Description SizeFormat
shiga_eurospeech03a.pdf792.61 kBAdobe PDFView/Open
shiga_eurospeech03a.ps419.37 kBPostscriptView/Open
Title: Estimating the Spectral Envelope of Voiced Speech Using Multi-Frame Analysis
Authors: Shiga, Yoshinori
King, Simon
Issue Date: 2003
Citation: Shiga, Yoshinori / King, Simon (2003): "Estimating the spectral envelope of voiced speech using multi-frame analysis", In EUROSPEECH-2003, 1737-1740.
Publisher: International Speech Communication Association
Abstract: This paper proposes a novel approach for estimating the spectral envelope of voiced speech independently of its harmonic structure. Because of the quasi-periodicity of voiced speech, its spectrum indicates harmonic structure and only has energy at frequencies corresponding to integral multiples of F_0. It is hence impossible to identify transfer characteristics between the adjacent harmonics. In order to resolve this problem, Multi-frame Analysis (MFA) is introduced. The MFA estimates a spectral envelope using many portions of speech which are vocalised using the same vocal-tract shape. Since each of the portions usually has a different F_0 and ensuing different harmonic structure, a number of harmonics can be obtained at various frequencies to form a spectral envelope. The method thereby gives a closer approximation to the vocal-tract transfer function.
Keywords: speech
Multi-frame Analysis
Appears in Collections:CSTR publications
Linguistics and English Language publications

Items in ERA are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! Unless explicitly stated otherwise, all material is copyright © The University of Edinburgh 2013, and/or the original authors. Privacy and Cookies Policy