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Relationships between species assemblage richness and acoustic indices
Anais do XVI Workshop de Computação Aplicada à Gestão do Meio Ambiente e Recursos Naturais (WCAMA 2025)Biodiversity assessment is increasingly reliant on acoustic indices derived from bioacoustic recordings. This study evaluates the performance of five acoustic indices–Acoustic Richness Index (Hs), Von Neumann Entropy (Hv), Acoustic Diversity Index (ADI),
Y. Rojas, Jie Xie, J. Colonna
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Aircraft Engineering and Aerospace Technology, 1935
CONSTRUCTIONS Electro — Mécaniques d'Asnières, of 236 Avenue d'Argentières, Asnières, Seine, France, have produced an interesting acoustic sounding gear which, it is claimed, gives accurate indications of the height of the aircraft above actual ground by a measurement of the time elapsing between the emission of a sound signal and the arrival of the ...
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CONSTRUCTIONS Electro — Mécaniques d'Asnières, of 236 Avenue d'Argentières, Asnières, Seine, France, have produced an interesting acoustic sounding gear which, it is claimed, gives accurate indications of the height of the aircraft above actual ground by a measurement of the time elapsing between the emission of a sound signal and the arrival of the ...
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Towards acoustic indicators for soundscape design
2014Scientific research on how people perceive, experience or understand the acoustic environment as a whole (i.e., soundscape) is still in development, both with regards to acoustic properties, as wel ...
Aletta, Francesco +2 more
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Acoustic consequences and perceptual indicators of stress
The Journal of the Acoustical Society of America, 1978All telephone conversations of Consolidated Edison's system operator beginning an hour before the 1977 New York blackout were studied for indications of emotional stress. The system operator had primary responsibility for monitoring and switching power loads in the New York area.
Lynn A. Streeter +3 more
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Acoustical airspeed indicators
1950Some of the problems associated with the applications of acoustical devices for the determination of airstream characteristics are considered in this study. The velocity and pressure fields for both point sound sources and finite sound sources in both subsonic and supersonic flow are discussed, with a view toward using sound waves for the determination
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Rapid assessment of biodiversity using acoustic indices
Biodiversity and Conservation, 2018The evolutionary success of a species is linked to its ability to communicate. Auditory, optic and olfactory systems are biological communication channels. Compared to the latter two, auditory systems are less impeded by physical obstructions. Successful species have effectively articulated this to their advantage.
Sajeev C. Rajan +4 more
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Indications for Diagnostic Labyrinthotomy: In Acoustic Neurinoma Suspects
Archives of Otolaryngology - Head and Neck Surgery, 1971Diagnostic labyrinthotomy is indicated in acoustic neurinoma suspects: (1) when there is a progressive unilateral sensorineural loss and the laminograms of the internal auditory canals show no abnormalities; (2) when the posterior fossa contrast study is equivocal or unsatisfactory; (3) when there is a question of whether the filling defect represents ...
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Preservation of Hearing in Acoustic Tumor Surgery: Audiologic Indicators
Annals of Otology, Rhinology & Laryngology, 1988Preservation of hearing in patients with acoustic nerve tumors can be a goal when tumor size is small and residual hearing is intact. Overall success rates for preservation have been reported to be 20% to 40%. The overall success rate in this series is 30.7%.
A F, Josey, M E, Glasscock, C G, Jackson
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Acoustic Indicators for Mapping Infestation Probabilities of Soil Invertebrates
Journal of Economic Entomology, 2007Acoustic and traditional excavation methods were used in consecutive summers to conduct two geospatial surveys of distributions of white grubs and other soil invertebrates in two forage fields. Indicator variables were constructed from listener- and computer-based assessments of sounds detected at each recording site and then applied in geostatistical ...
R W, Mankin, J L, Hubbard, K L, Flanders
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Acoustic and Perceptual Indicators of Normal and Pathological Voice
Folia Phoniatrica et Logopaedica, 2003The aim of this study was to obtain acoustic correlates to vocal quality of a group of men and women with and without voice disorders, based on evaluations of a group of judges experienced in the field of vocal rehabilitation. In male subjects, perceptual evaluation of normal, hoarse and rough voice qualities was related to the following acoustic ...
J, Muñoz +4 more
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