Sixth International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2009)

Florence, Italy
December 14-16, 2009

Acoustic Analysis of Vowel Segments for Clinical Purposes: Preliminary Observations

O. Amir, S. Ziv, N. Amir

Department of Communication Disorders, Tel-Aviv University, Israel

Sustained phonations of the vowels /a/ and /i/ were recorded from 89 patients with voice disorders, who were divided into five pathological subgroups. In addition, recordings were made from a control group of 23 normophonic participants. All recordings were segmented into onset, steady state, and offset, and analyzed acoustically. Results revealed the following findings: 1) only minor differences were found between the acoustical analyses based on the steady state versus the entire vowel; 2) the tested acoustic measures could discriminate between test and control groups, but not among the different pathological groups; 3) the contribution of the data gathered from the onset and/or offset of the vowel did not contribute significant information beyond that which was provided by the steady state.

Index Terms. voice pathology, sustained phonation, acoustic analysis, vowel segment

Full Paper (reprinted with permission from Firenze University Press)

Bibliographic reference.  Amir, O. / Ziv, S. / Amir, N. (2009): "Acoustic analysis of vowel segments for clinical purposes: preliminary observations", In MAVEBA-2009, 57-60.