Biomaterial Database

Frequency and amplitude perturbation in the voices of female speakers. 1983

D Sorensen, and Y Horii

Vocal jitter and shimmer during the sustained phonation of /a/, /i/, and /u/ were investigated for twenty adult female speakers using an automatic analysis program. The results showed overall average shimmer of 0.25 dB and overall average jitter of 0.84%. The critical value for shimmer was 0.48 dB. Significant differences between males and females were found.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010699	Phonation	The process of producing vocal sounds by means of VOCAL CORDS vibrating in an expiratory blast of air.	Phonations
D012016	Reference Values	The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.	Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D012737	Sex Factors	Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from SEX CHARACTERISTICS, anatomical or physiological manifestations of sex, and from SEX DISTRIBUTION, the number of males and females in given circumstances.	Factor, Sex,Factors, Sex,Sex Factor
D013061	Speech Acoustics	The acoustic aspects of speech in terms of frequency, intensity, and time.	Acoustics, Speech,Acoustic, Speech,Speech Acoustic
D014831	Voice	The sounds produced by humans by the passage of air through the LARYNX and over the VOCAL CORDS, and then modified by the resonance organs, the NASOPHARYNX, and the MOUTH.	Voices