Articles about Acoustics

Objective and Subjective Aspects of Voice in Pregnancy
Journal of Voice (2016) Vol. 30, No. 1, pp. 70-73

This study aimed to evaluate vocal changes in pregnancy according to trimesters both objectively and subjectively. Fifty pregnant women and 15 nonpregnant women were included in the study. Eighteen of the 50 pregnant women were in the first trimester, 17 ...

Some Consensus has been Reached on the Labeling of Harmonics, Formants, and Resonances
Journal of Voice (2016) Vol. 30, No. 2, pp. 129

A group of 22 voice professionals engaged in vigorous debate about symbolic notation and definitions in voice acoustics for a period of about 2 years. The group included singing teachers, speech-language pathologists, and voice scientists from the United States, Europe, ...

Respiratory Muscle Strength, Sound Pressure Level, and Vocal Acoustic Parameters and Waist Circumference of Children With Different Nutritional Status
Journal of Voice (2016) Vol. 30, No. 1, pp. 30-35

Objective: Relate respiratory muscle strength (RMS), sound pressure (SP) level, and vocal acoustic parameters to the abdominal circumference (AC) and nutritional status of children. Eighty-two school children aged between 8 and 10 years, grouped by nutritional states (eutrophic, overweight, or ...

Vocal Effects in Military Students Submitted to an Intense Recruit Training: A Pilot Study
Journal of Voice (2016) Vol. 30, No. 1, pp. 61-69

This study aims at evaluating the vocal parameters of military officers before and after an Intense Recruit Training (IRT), consisting of a 48-hour exercise protocol involving high vocal demand combined with physical effort, lower body hydration levels, and fewer hours ...

Vocal Performance of Group Fitness Instructors Before and After Instruction: Changes in Acoustic Measures and Self-Ratings
Journal of Voice (2016) Vol. 30, No. 1, pp. 127.e1-127.e8

Objectives: (1) To quantify acute changes in acoustic parameters of the voices of group fitness instructors (GFIs) before and after exercise instruction. (2) To determine whether these changes are discernible perceptually by the instructor. Participants were six female GFIs, based ...

The Low Mandible Maneuver and Its Resonential Implications for Elite Singers
Journal of Voice (2016) Vol. 30, No. 1, pp. 128.e13-128.e32

Many elite singers appear to frequently drop the posterior mandible while singing to optimize resonance production. This study investigated the physiology of the Low Mandible Maneuver (LMM) through the use of magnetic resonance imaging (MRI), ultrasound (US), and spectrographic analysis. ...

Natural Sounds and Musical Sounds: A Dual Distinction
The Journal of Aesthetics and Art Criticism (2016) Vol. 74, No. 3, pp. 291-302

In this article I consider the relationship between natural sounds and music. I evaluate two prominent accounts of this relationship. These accounts satisfy an important condition, the difference condition: musical sounds are different from natural sounds. However, they fail to ...

The Effect of Moving Window on Acoustic Analysis
Journal of Voice (2016) Vol. 30, No. 1, pp. 5-10

Objective: To investigate the effects of the moving window method on acoustic measures and discrimination ability between normal and disordered voices. Fifty-three normal voices and 50 disordered voices were recruited. Three selection methods, the moving window method, the mid-vowel method, ...

Effects of Adventitious Acute Vocal Trauma: Relative Fundamental Frequency and Listener Perception
Journal of Voice (2016) Vol. 30, No. 2, pp. 177-185

High voice users (individuals who demonstrate excessive or loud vocal use) are at risk for developing voice disorders. The objective of this study was to examine, both acoustically and perceptually, vocal changes in healthy speakers after an acute period of ...

Relationship of Various Open Quotients With Acoustic Property, Phonation Types, Fundamental Frequency, and Intensity
Journal of Voice (2016) Vol. 30, No. 2, pp. 145-157

In the present study, we examined the relationship between various open quotients (Oqs) and phonation types, fundamental frequency (F0), and intensity by multivariate linear regression analysis (MVA) to determine which Oq best reflects vocal fold vibratory characteristics. Using high-speed digital ...