Intrasubject variability of objective voice measures.

Recent advances in the diagnosis and treatment of voice disorders necessitate the need for accurate and reliable objective voice measurements. There are many instruments commonly used to analyze voice data. Many, if not most, of these instruments have not been adequately tested for reliability or consistency. This study evaluates the intrasubject variability of the objective voice measurements from two commonly used voice analysis instruments. The study also presents data correlating subjective mood states, room temperatures, sleep times of the subject, time since last meal, and hydration levels to the various acoustic measures. Several weak but significant correlations were obtained and are discussed. Guidelines for the appropriate use of these instruments are described.

[1]  J. Laver,et al.  Acoustic waveform perturbations and voice disorders , 1992 .

[2]  Ronald J. Baken,et al.  Clinical measurement of speech and voice , 1987 .

[3]  Y. Koike.  Application of Some Acoustic Measures for the Evaluation of Laryngeal Dysfunction , 1967 .

[4]  J. Fleiss,et al.  Intraclass correlations: uses in assessing rater reliability. , 1979, Psychological bulletin.

[5]  D. R. Boone.  The Voice and Voice Therapy , 1971 .

[6]  R. J. Baken.  Irregularity of vocal period and amplitude: A first approach to the fractal analysis of voice , 1990 .

[7]  D. Bless.  Measurement of vocal function. , 1991, Otolaryngologic clinics of North America.

[8]  R. Sataloff,et al.  The human voice. , 1992, Scientific American.

[9]  Vicki L. Heiberger,et al.  Jitter and Shimmer in Sustained Phonation , 1982 .

[10]  N Yanagihara,et al.  Significance of harmonic changes and noise components in hoarseness. , 1967, Journal of speech and hearing research.

[11]  Robert F. Orlikoff,et al.  Influence of mean sound pressure level on jitter and shimmer measures , 1991 .

[12]  R. Sataloff.  Professional Voice: The Science and Art of Clinical Care , 1991 .

[13]  Ingo R. Titze,et al.  Preliminary evaluation of selected acoustic and glottographic measures for clinical phonatory function analysis , 1988 .

[14]  Norman J. Lass,et al.  Speech and Language: Advances in Basic Research and Practice , 1979 .

[15]  Martin Rothenberg.  A multichannel electroglottograph , 1992 .

[16]  S. B. Davis.  Acoustic Characteristics of Normal and Pathological Voices , 1979 .

[17]  P Kitzing,et al.  A comparison of contact microphone and electroglottograph for the measurement of vocal fundamental frequency. , 1980, Journal of speech and hearing research.

[18]  J. Sundberg,et al.  The Science of Singing Voice , 1987 .