Open Access

A First Comparative Study of Oesophageal and Voice Prosthesis Speech Production

EURASIP Journal on Advances in Signal Processing20092009:821304

Received: 31 October 2008

Accepted: 30 April 2009

Published: 2 June 2009


The purpose of this work is to evaluate and to compare the acoustic properties of oesophageal voice and voice prosthesis speech production. A group of 14 Italian laryngectomized patients were considered: 7 with oesophageal voice and 7 with tracheoesophageal voice (with phonatory valve). For each patient the spectrogram obtained with the phonation of vowel /a/ (frequency intensity, jitter, shimmer, noise to harmonic ratio) and the maximum phonation time were recorded and analyzed. For the patients with the valve, the tracheostoma pressure, at the time of phonation, was measured in order to obtain important information about the "in vivo" pressure necessary to open the phonatory valve to enable speech.

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Authors’ Affiliations

Dipartimento di Meccanica, Politecnico di Torino
Ospedali Riuniti di Pinerolo, A.S.L. TO3


© M. Carello and M. Magnano. 2009

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.