Biomaterial Database

Frequency perturbation characteristics of pulse register phonation. 1984

S A Cavallo, and R J Baken, and S Shaiman

Examination of some acoustic characteristics of sustained pulse register phonation in normal adults confirmed the existence of two distinct waveform patterns. Trains of similar, highly damped waves with relatively uniform spacing predominated, but the "dicrotic" pattern previously described accounted for about 15% of the total sample. Average differences in the periods of continguous cycles (jitter) were extremely large--on the order of 20% of the fundamental period. Jitter did not vary with fundamental frequency according to the pattern documented in modal register and, thus, jitter ratio is not a useful normalizing descriptor of pulse register perturbation.

UI	MeSH Term	Description	Entries
D008297	Male		Males
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
D013061	Speech Acoustics	The acoustic aspects of speech in terms of frequency, intensity, and time.	Acoustics, Speech,Acoustic, Speech,Speech Acoustic
D014827	Vocal Cords	A pair of cone-shaped elastic mucous membrane projecting from the laryngeal wall and forming a narrow slit between them. Each contains a thickened free edge (vocal ligament) extending from the THYROID CARTILAGE to the ARYTENOID CARTILAGE, and a VOCAL MUSCLE that shortens or relaxes the vocal cord to control sound production.	Vocal Fold,Vocal Folds,Vocal Ligament,Cord, Vocal,Cords, Vocal,Fold, Vocal,Folds, Vocal,Ligament, Vocal,Ligaments, Vocal,Vocal Cord,Vocal Ligaments
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
D014833	Voice Quality	That component of SPEECH which gives the primary distinction to a given speaker's VOICE when pitch and loudness are excluded. It involves both phonatory and resonatory characteristics. Some of the descriptions of voice quality are harshness, breathiness and nasality.	Qualities, Voice,Quality, Voice,Voice Qualities