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Dec 5, 2024 | 
pubs.aip.org | Kent L. Gee |Yahao Zhang |Calbert Graham
Topics
Phonetics,
Bioacoustics of birds,
Pitch,
Speech production,
Computer software,
Data processing,
Discrete cosine transforms,
d'Alembert ratio test,
Regression analysis,
Statistical analysis
Language dominance refers to bilinguals' relative abilities in each of their two languages (Olson, 2023). The dominant language of a bilingual is the “more proficient” or “further developed” one (Snape and Kupisch, 2017, p.
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Dec 2, 2024 | 
pubs.aip.org | Kent L. Gee |Nadège Aoki |Calbert Graham |De Cheveigné
The peaks of the LP spectrum represent the resonances and harmonics. One of the peaks corresponds to the pitch. Estimating the peak locations from a discrete spectrum may compromise resolution, as the number of bins limits the spectral resolution. LP spectrum is an all-pole model where poles model the spectral peaks. LP offers the advantage of computing precise pitch and harmonic values directly from the pole angles of the denominator polynomial ( 1,aks) of Eq. (2).
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Oct 26, 2024 | 
scholarsarchive.byu.edu | David Hart |Kent L. Gee |Brigham Young
KeywordsBayesian-based equivalent sound source model, military jet aircraft, F-22CollegePhysical and Mathematical SciencesDepartmentPhysics and AstronomyAbstractMilitary jet aircraft are some of the fastest vehicles ever made. Their jet engines exhaust fuel at supersonic speeds and create large amounts of noise. However, this noise is loud enough to cause hearing loss, even with the most advanced levels of hearing protection.
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Oct 26, 2024 | 
scholarsarchive.byu.edu | Benjamin Christensen |Kent L. Gee |Brigham Young
Keywordssound radiation, hammered dulcimer, near-filed acoustical holography, NAHCollegePhysical and Mathematical SciencesDepartmentPhysics and AstronomyAbstractThe hammered dulcimer is a stringed instrument of the zither family, typically consisting of a wooden trapezoidal body with metal strings stretched across the frame. A typical dulcimer can span anywhere between 2 1/2 and 5 octaves, depending on the size of the instrument.
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Oct 26, 2024 | 
scholarsarchive.byu.edu | Kent L. Gee |Brigham Young
KeywordsPHARM, physical acoustics, student writingCollegePhysical and Mathematical SciencesDepartmentPhysics and AstronomyAbstractPHARM (PHysical Acoustics Research and Mentoring) has been operating partially with support from a MEG grant since 2009. The primary purpose of this mentoring environment is to provide undergraduates in physics and applied physics opportunities to gain experience in fundamental areas of physical acoustics.
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Jul 9, 2024 | 
scholarsarchive.byu.edu | Kent L. Gee |Brigham Young |Jazz Myres
Keywordsphase-correlation, propagation, military jet noise, hearing lossCollegePhysical and Mathematical SciencesDepartmentPhysics and AstronomyAbstractAccording to the Office of Naval Research (ONR), the United States Department of Veteran Affairs spent over $1 billion dollars on military hearing loss compensation in 2010 alone1. A major cause of hearing loss is exposure to high Sound Pressure Levels, which are caused by military aircraft.
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Jul 9, 2024 | 
scholarsarchive.byu.edu | Kent L. Gee |Brigham Young |Scott M. D
Keywordsactive noise control system, ANC, small axial fan, antinoiseCollegePhysical and Mathematical SciencesDepartmentPhysics and AstronomyAbstractAxial cooling fans used in computers, projectors, and printers often contribute significantly to background noise levels in both the workplace and classroom because of the distinct and often annoying tones they produce. These tones are principally caused by spatially unsteady flow through the fan, due to finger guards and other obstructions.
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Jul 9, 2024 | 
scholarsarchive.byu.edu | Blaine M Harker |Kent L. Gee |Brian Anderson |Brigham Young
Keywordstime reversal, non-idealistic environments, acoustic localization, lithotripsyCollegePhysical and Mathematical SciencesDepartmentPhysics and AstronomyAbstractTime reversal is a relatively new type of acoustic localization with many applications, such as lithotripsy to destroy kidney stones, and secure underwater sound communication, though in some ways time reversal is still in the development stage.
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Apr 18, 2024 | 
scholarsarchive.byu.edu | Kent L. Gee |Tracianne B. Neilsen |Brigham Young
KeywordsPHARM, Physical Acoustics Research and Mentoring, Acoustics Research GroupCollegePhysical and Mathematical SciencesDepartmentPhysics and AstronomyAbstractPHARM (PHysical Acoustics Research and Mentoring) has been operating partially with support from a MEG grant. The primary purpose of this mentoring environment is to provide undergraduates in Physics and Applied Physics opportunities to gain experience in fundamental areas of physical acoustics.
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Mar 26, 2024 | 
scholarsarchive.byu.edu | Kevin M. Leete |Kent L. Gee |Brigham Young
Keywordsweak Mach, reflection regime, Mach stem formation, shock wavesCollegePhysical and Mathematical SciencesDepartmentPhysics and AstronomyAbstractWhen a shock wave reflects off a rigid surface with certain combinations of incident shock strength and angle, a Mach reflection can occur. This is when portions of the incident and reflected waves merge to create a stronger shock called a Mach stem that travels parallel to the reflecting surface.
