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Hubbard Daniel J - - 2011
Previous work has documented perceptual adaptation to nonlinguistic properties in speech using voice gender and emotion categories. Exposure to voice gender and expressive speech adaptors produced a response shift away from the adaptation category. This project extends those findings by examining the contribution of fundamental frequency (F0) to perceptual speech ...
Jones Hillary - - 2011
When you are listening to speech, a lecture, or a performance, the sound waves travel through the room to reach you. Along the way, the speech sounds interfere with the other sounds in the room such that the sound reaching your ears is often corrupted by noise. The addition of ...
Freiheit Ron - - 2011
To enhance the performance of an active acoustic system for music practice rooms, a new speaker was developed with extended low-frequency response. To better understand the performance desired from certain musicians, a small number of cellists provided observations and opinions about what environment was most pleasing to them, specifically related ...
Roche Lauren K - - 2011
The vocalizations of migrating eastern North Pacific gray whales (Eschrichtius robustus) are not well understood, but studying these sounds may provide insights to their behaviors and encounters along their migratory route. To record migratory gray whale sounds over long periods, a high frequency acoustic recording package (HARP) was deployed from ...
Sorensen Kristina M - - 2011
Measurements of musical instruments in an anechoic chamber at Brigham Young University are yielding high-resolution directivity data and balloon plots that may be analyzed and visualized as functions of time or frequency. Historically, room acoustics calculations involving directivity of sound sources have relied on well-defined radiation characteristics including principal radiation ...
Adelman-Larsen Niels Werner - - 2011
Previous studies have shown that what distinguishes the best from the less well liked halls for pop and rock music is a short reverberation time in the 63, 125, and 250 Hz octave bands. Since quite long reverberation times in these frequency bands are needed in order to obtain warmth ...
Kimura Satoko - - 2011
The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) is an endangered freshwater porpoise subspecies unique to the Yangtze River basin. Without immediate conservation measures, it could soon become extinct, just as the Yangtze River dolphin (baiji, Lipotes vexillifer). We report seasonal change in the local distribution of the porpoises living in ...
Park Sang Bum - - 2011
Soundscape methods have been used to investigate the sound quality of natural and urban environments and the effects of sonic events on people. Soundscape methods can also be used to study the dynamic listening, speaking, and musical acoustical environment of a worship space. Observations of services in three worship spaces ...
Lam Kin-Che - - 2011
Over six hundred 15-min and one hundred 24-h digital sound recordings were undertaken in different parts of the Hong Kong countryside covering different landscape units, different time of day and seasons. Spectrograms were prepared from these recordings and 24-h spectrograms were subdivided into segments with relatively uniform acoustic characteristics. These ...
Cummins Amanda J - - 2011
Humpback whales (Megaptera novaeangliae) produce a variety of vocalizations such as social and feeding calls as well as patterned calls that comprise song. Typically, social and feeding vocalizations do not follow the highly structural format of song. High-frequency acoustic recording packages were deployed in the Olympic Coast National Marine Sanctuary ...
Frasier Kaitlin E - - 2011
High-Frequency Acoustic Recording Packages (HARPs) continuously monitored delphinids at five sites in the northeastern Gulf of Mexico during and after the Deepwater Horizon oil spill. Surface oil reached two sites, while the three unexposed sites functioned as "controls." Presence of dolphin vocalizations (clicks, whistles, and burst pulses) was documented at ...
Turgut Altan - - 2011
Sediment sound-speed and attenuation were estimated from the chirp sonar reflection data that were collected during recent surveys in the New Jersey Shelf and northern Gulf of Mexico. Physical properties of the sediment were also estimated using the Biot-Stoll model outlined in [Schock, IEEE J. Ocean. Eng. 29(4) (2004)]. In ...
Neilsen Tracianne B - - 2011
Have you ever wondered if the person next to you hears the same thing you hear? It depends. The response of our ears varies significantly with age because a person's cumulative exposure to noise lessens their ears' ability to respond to sounds. This common form of hearing loss is called ...
Jones Joshua M - - 2011
Long-term autonomous acoustic recordings were collected between September and June from 2006 through 2009 in the Northeastern Chukchi Sea along the continental slope 120 km north of Barrow, Alaska. These recordings were analyzed for the presence of vocalizations of ringed seals (Phoca hispida), ribbon seals (Histrophoca fasciata), and bearded seals ...
de Moustier Christian - - 2011
Acoustic backscatter measurements were made with a RESON 7125-V2 multifrequency, multibeam sonar at 50 kHz increments between 150 and 450 kHz. The sonar was hull-mounted on a vessel held in a four-point moor in 17 m of water depth. The resulting constrained ship motion provided thousands of independent samples of ...
Timmerman Nancy S - - 2011
Consultants in the noise field tend to encounter the more sensitive individuals. These people may feel entitled to not hear anyone else. This paper will characterize the quiet acoustical setting, and consider the expectations of the more normal individuals. It quiet settings, it is as easy to be heard as ...
Gulsrud Timothy E - - 2011
Improvements to onstage hearing conditions were made at the Sydney Opera House Concert Hall during a series of acoustics trials conducted during September 2009. During the acoustic trials, physical changes were made to reflective surfaces around the platform and an active acoustics system was demonstrated. Taken together, the temporary changes ...
Finneran James J - - 2011
It is becoming increasingly clear that noise may adversely affect the hearing and behavior of many marine mammals, including dolphins and whales. One of the possible consequences of noise exposure is a temporary loss of hearing sensitivity, called a temporary threshold shift (TTS). Previous studies of TTS in marine mammals ...
Pieper Richard E - - 2011
I first met Van Holliday in 1970 at the International Symposium on Biological Sound Scattering in the Ocean. We were both graduate students, Van at Scripps and I was at the UBC. Two of us were interested in higher frequency acoustics and scattering from zooplankton. In the Working Group on ...
Thurgood Ela - - 2011
This paper focuses on the acoustic features in the contrast between two pairs of phonemically distinctive diphthongs in Hainan Cham, /ai/ versus /a:i/ and /au/ versus /a:u/. The data from six native speakers of Hainan Cham show that the overall duration of long diphthongs does not statistically differ from the ...
Baumann-Pickering Simone - - 2011
Marine ambient sound was recorded on autonomous high-frequency acoustic recording packages (bandwidth 10 Hz to 100 kHz) during long term deployments at multiple sites across the North Pacific, from the high latitude Aleutian Islands to tropical Palmyra Atoll in depths of 600-1 000 m. Most intertropical but no temperate locations ...
Campos Ualace de Paula Ude - - 2011
The literature suggests that contralateral acoustic stimulation (CAS) alters the amplitude of the distortion product otoacoustic emissions (DPOAEs), but it is still unknown whether the DPOAE Input/Output (I/O) functions are also affected. To elucidate this aspect of the DPOAEs, the present study assessed the effects of CAS on DPOAE I/O ...
Lee Young Joon - - 2011
This paper presents the correlation between psychological and physiological acoustics for the automotive sound. The research purpose of this paper is to evaluate the sound quality of interior sound of a passenger car based human sensibility. The conventional method for the objective evaluation of sound quality is to use the ...
Schwenke Roger W - - 2011
Orchestra shells are often loud places. So much so that some orchestras have instituted noise monitoring and select their repertoire to limit noise exposure. Orchestra shells are loud places because they are surrounded on five out of six sides by nearby hard reflecting surfaces. This also means that the orchestra ...
Zahorian Stephen A - - 2011
In a study presented at the fall 2010 meeting of the Acoustical Society of America (Zahorian etal., "Time/frequency resolution of acoustic features for automatic speech recognition"), we demonstrated that spectral/temporal evolution features which emphasize temporal aspects of acoustic features, with relatively low spectral resolution, are effective for phonetic recognition in ...
Schneider Jennifer N - - 2011
The purpose of this study is to further understanding of the function of nonlinear vocalizations in red wolves (Canis rufus) by examining the acoustic, structural, and contextual characteristics of nonlinear sounds as compared to linear sounds. Video recordings of captive wolves from a breeding facility were analyzed. The acoustic nature ...
Brewer Arial M - - 2011
Though studies have focused on some aspects of binaural hearing in otariid pinnipeds, none have directly measured monaural hearing thresholds. Recent auditory evoked potential (AEP) testing with a young male California sea lion suggested that hearing threshold differences potentially existed between the subject's two ears. To further investigate these findings, ...
Fuente Adrian - - 2011
Abstract Objective: The aim of the present research was to investigate central auditory functioning in normal-hearing, solvent-exposed subjects compared to normal-hearing subjects without solvent exposure, with a comprehensive test battery of behavioural central auditory functioning procedures. Study sample: Forty-six normal-hearing, solvent-exposed subjects and 46 normal-hearing, control subjects were selected to ...
Chiandetti Cinzia - - 2011
The question of whether preference for consonance is rooted in acoustic properties important to the auditory system or is acquired through enculturation has not yet been resolved. Two-month-old infants prefer consonant over dissonant intervals, but it is possible that this preference is rapidly acquired through exposure to music soon after ...
Whitmer William M - - 2011
This study measured the effects of two previously untested practical considerations-venting and transmission delays-on speech intelligibility in a simulated unilateral wireless system, where a target signal in background noise was transmitted wirelessly to the hearing-impaired (HI) listener. Speech reception thresholds (SRTs) relative to the signal-to-noise ratio (SNR) were measured by ...
Brown Daniel J - - 2011
We have cyclically suppressed the 2f1-f2 distortion product otoacoustic emission (DPOAE) with low-frequency tones (17-97 Hz) as a way of differentially diagnosing the endolymphatic hydrops assumed to be associated with Ménière's syndrome. Round-window electrocochleography (ECochG) was performed in subjects with sensorineural hearing loss (SNHL) on the day of DPOAE testing, and ...
Mooney T Aran - - 2011
Temporal cues are important for some forms of auditory processing, such as echolocation. Among odontocetes (toothed whales, dolphins, and porpoises), it has been suggested that porpoises may have temporal processing abilities which differ from other odontocetes because of their relatively narrow auditory filters and longer duration echolocation signals. This study ...
Clark Christopher J - - 2011
During courtship flights, males of some hummingbird species produce diverse sounds with tail feathers of varying shapes. We show that these sounds are produced by air flowing past a feather, causing it to aeroelastically flutter and generate flutter-induced sound. Scanning laser doppler vibrometery and high-speed video of individual feathers of ...
McDermott Josh H JH Howard Hughes Medical Institute, New York University, New York, NY 10003, USA. - - 2011
Rainstorms, insect swarms, and galloping horses produce "sound textures"--the collective result of many similar acoustic events. Sound textures are distinguished by temporal homogeneity, suggesting they could be recognized with time-averaged statistics. To test this hypothesis, we processed real-world textures with an auditory model containing filters tuned for sound frequencies and ...
Labrousse M - - 2011
The motion of the vestibulo-cochlear nerve (VCN) was quantified at the level of the cerebello-pontine angle in 28 healthy volunteers enrolled in a prospective study performed on a 3T MRI scanner. A phase contrast MRI (PCMRI) sequence was used. The VCN was divided into a cisternal part and a meatic ...
Butler John S - - 2011
Self-motion through an environment stimulates several sensory systems, including the visual system and the vestibular system. Recent work in heading estimation has demonstrated that visual and vestibular cues are typically integrated in a statistically optimal manner, consistent with Maximum Likelihood Estimation predictions. However, there has been some indication that cue ...
Rawool Vishakha - - 2011
Several case reports suggest that some individuals are susceptible to hearing loss from opioids. A combination of noise and opium exposure is possible in either occupational setting such as military service or recreational settings. According to the Drug Enforcement Agency of the U.S. Department of Justice, prescriptions for opiate-based drugs ...
McCullagh Marjorie C - - 2011
Noise represents one of the most common occupational health hazards. A Healthy People 2020 objective aims to reduce hearing loss in the noise-exposed public. The purpose of this study was to describe and compare perceived and measured hearing, and to determine the prevalence of hearing loss among a group of ...
Spirić Sanja - - 2011
Transient-evoked otoacoustic emissions are transmitted through the middle ear. The purpose of this study was to investigate the effects of dynamic properties of the transmission system on the measurability of transient otoacoustic emissions. The authors analyzed the presence of transient otoacoustic emissions in 48 children with serous otitis media regarding ...
Cutfield Nicholas J NJ Neuro-otology Unit, Imperial College London, Charing Cross Hospital, London, United - - 2011
Studies of compensation of injury to the human vestibular system have, in the main, focused on the vestibular-ocular reflex. Probing vestibular perception allows more of the sensory pathway to be assessed. We present a novel paradigm for simultaneously testing vestibular perceptual and nystagmic thresholds to angular acceleration around an earth ...
Dube Kamalesh J - - 2011
Cotton ginning workers have a risk of hearing loss due to excessive noise levels at the workplace environment. In this study, estimates of typical sound levels prevailing at the workplace environment and its effects on hearing ability of the exposed workers were made among cotton ginning workers. Data on self-reported ...
Jackson Christophe E - - 2011
The negative effects of environmental noise on sound recordings are recognized in the professional literature. Sound booths and anechoic chambers are examples of controlled acoustical environments widely used in research. However, both enclosures are expensive, require substantial space, and are not portable. Our research has been directed to measuring vocal ...
Baumann Uwe - - 2011
: Combined electric-acoustic stimulation (EAS) is a therapeutic option for patients with severe to profound mid- and high-frequency hearing loss while low-frequency hearing is mostly unaffected. The present study investigates bimodal pitch matching in EAS users as a function of the angular placement of electrodes. Results are compared with data ...
Mizutari Kunio - - 2011
We previously reported a model of acute cochlear energy failure using a mitochondrial toxin, 3-nitropropionic acid (3-NP), to study mechanisms of inner ear disorders such as inner ear ischemia. In this model, the main cause of hearing loss is apoptosis of fibrocytes in the cochlear lateral wall. Here, we analyzed ...
Dai Chenkai C Department of Otolaryngology - Head & Neck Surgery, Johns Hopkins University School of Medicine, 720 Rutland Ave.,Baltimore, MD 21205, - - 2011
Profound bilateral loss of vestibular hair cell function can cause chronically disabling loss of balance and inability to maintain stable vision during head and body movements. We have previously shown that chinchillas rendered bilaterally vestibular-deficient via intratympanic administration of the ototoxic antibiotic gentamicin regain a more nearly normal 3-dimensional vestibulo-ocular ...
Garinis Angela A University of Washington, Department of Speech and Hearing Sciences, 1417 N.E. 42nd Street, Seattle, WA 98105-6246, USA. - - 2011
Otoacoustic emission (OAE) amplitude can be reduced by acoustic stimulation. This effect is produced by the medial olivocochlear (MOC) reflex. Past studies have shown that the MOC reflex is related to listening in noise and attention. In the present study, the relationship between strength of the contralateral MOC reflex and ...
Hong Oisaeng - - 2011
BACKGROUND:: A valid assessment of hearing status is important to detect hearing loss early and prevent further loss in noise-exposed individuals or older adults. Self-report is used widely in research and is often the only possible measure to evaluate hearing ability. OBJECTIVES:: The aims of this study were to establish ...
Garinis Angela C - - 2011
PURPOSE: The purpose of this study was to test the hypothesis that active listening to speech would increase MOC efferent activity for the right versus left ear. Methods CEOAEs were evoked by 60 dB p.e. SPL clicks in 13 normally hearing adults in four test conditions for each ear: 1) ...
Fox Robert Allen - - 2011
PURPOSE: To evaluate potential contributions of broadband spectral integration in the perception of static vowels. Specifically, can the auditory system infer formant frequency information from changes in the intensity weighting across harmonics when the formant itself is missing? Does this type of integration produce the same results in the lower ...
Fahlke Julia M - - 2011
Eocene archaeocete whales gave rise to all modern toothed and baleen whales (Odontoceti and Mysticeti) during or near the Eocene-Oligocene transition. Odontocetes have asymmetrical skulls, with asymmetry linked to high-frequency sound production and echolocation. Mysticetes are generally assumed to have symmetrical skulls and lack high-frequency hearing. Here we show that ...
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