Effects of Auditory Masking on Vocal Intensity and Intraoral Air Pressure during Sentence Production

1971 ◽  
Vol 49 (6B) ◽  
pp. 1903-1905 ◽  
Author(s):  
W. S. Brown ◽  
John F. Brandt
Keyword(s):  
Air Pressure ◽  
Sentence Production ◽  
Auditory Masking ◽  
Vocal Intensity ◽  
Intraoral Air Pressure

Lingual and Intraoral Air‐Pressure Variations as a Function of Vocal Intensity

1970 ◽  
Vol 47 (1A) ◽  
pp. 104-104
Author(s):  
W. S. Brown ◽  
Robert E. McGlone ◽  
William R. Proffit
Keyword(s):  
Air Pressure ◽  
Vocal Intensity ◽  
Intraoral Air Pressure

Relationship between Intraoral Air Pressure and Vocal Intensity in Children and Adults

1986 ◽  
Vol 29 (1) ◽  
pp. 71-74 ◽  
Author(s):  
Elaine T. Stathopoulos
Keyword(s):  
Sound Pressure ◽  
Vocal Tract ◽  
Pressure Level ◽  
Air Pressure ◽  
Intensity Level ◽  
Connected Speech ◽  
Male And Female ◽  
Age Related ◽  
Vocal Intensity ◽  
Intraoral Air Pressure

Intraoral air pressure (P 0 ) varies as a function of age. Specifically, children produce significantly higher P 0 values than adults. The higher P 0 produced by children has been discussed in relation to age-related volumetric differences of the subglottal and vocal tract, to lung compression differences, and to the fact that children's "comfortable" speaking level might exceed that of adults. The present study was undertaken to evaluate the hypothesis that children (vs. adults) and women (vs. men) produce higher P 0 values when sound pressure level (SPL) is held constant. Measurements were made of P 0 generated by children and adults during a connected speech task completed at three intensity levels. The findings of the study indicated that (a) peak P 0 values increased as vocal intensity increased for all subject groups, (b) peak P 0 values were higher for voiceless stops than for voiced stops, and (c) peak P 0 values were not significantly different for adults than for children or for men than for women. These results were interpreted to show that despite physical and physiological differences between male and female, and between adult and child vocal tracts, all groups use the same P 0 mechanism for achieving a given vocal intensity level.

Correlates of Turbulent Noise Production for Speech

1967 ◽  
Vol 10 (1) ◽  
pp. 133-140 ◽  
Author(s):  
Thomas J. Hixon ◽  
Fred D. Minifie ◽  
Charles A. Tait
Keyword(s):  
Sound Pressure Level ◽  
Sound Pressure ◽  
Power Laws ◽  
Pressure Level ◽  
Air Pressure ◽  
Voice Production ◽  
Volume Rate ◽  
Intraoral Air Pressure ◽  
Noise Production ◽  
Parameters Of Interest

Intraoral air pressure, volume rate of airflow, and sound pressure level were measured during /∫/ and /s/ productions of two speakers. In addition numerical estimates of the loudness of the productions were made by each speaker and by a group of judges. The power laws governing the relations among the parameters of interest are discussed and the results are compared with available data on voice production.

Levator Veli Palatini Muscle Activity in Relation to Intraoral Air Pressure Variation in Cleft Palate Subjects

1995 ◽  
Vol 32 (5) ◽  
pp. 376-381 ◽  
Author(s):  
David P. Kuehn ◽  
Jerald B. Moon
Keyword(s):  
Cleft Palate ◽  
Air Pressure ◽  
Levator Muscle ◽  
Emg Activity ◽  
High Activation ◽  
Levator Veli Palatini ◽  
Activation Level ◽  
High Activation Level ◽  
Intraoral Air Pressure ◽  
Total Activation

A comparison of the ranges of levator veli palatini EMG activity for speech versus a nonspeech task for subjects with cleft palate was the focus of this study. EMG values are also compared with subjects without cleft palate obtained in a previous study. Hooked-wire electrodes were inserted into the levator muscle of five adult subjects with cleft palate exhibiting mild hypernasality. Intraoral air pressure was measured concurrently. A blowing task was used to determine the subject's operating range for the levator muscle. Both the nonspeech and speech tasks were designed to sample the widest possible ranges of levator EMG activity. It was found that the subjects with cleft palate used a relatively high activation level for the levator muscle during speech, in relation to their total activation range, compared with the subjects without cleft palate. Implications are discussed In relation to possible anatomic and physiologic differences for cleft palate subjects compared to normal.

Intraoral Air Pressure Discrimination by Normal-Speaking Subjects

1987 ◽  
Vol 39 (4) ◽  
pp. 196-203 ◽  
Author(s):  
William N. Williams ◽  
W.S. Brown, Jr. ◽  
G.E. Turner
Keyword(s):  
Air Pressure ◽  
Intraoral Air Pressure ◽  
Normal Speaking

Oscillatory movements of the velum: A factor of intraoral air pressure

1976 ◽  
Vol 59 (S1) ◽  
pp. S84-S85
Author(s):  
W. N. Williams ◽  
W. S. Brown ◽  
B. Hildebrand
Keyword(s):  
Air Pressure ◽  
Intraoral Air Pressure
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