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Development of Digital Hearing Aids

Christopher Schweitzer
1997 Trends in Amplification  
Acknowledgments The author is grateful to Francis Kuk, Carol Sammeth, Robert Sweetow, and Michael Valente for their many helpful editorial suggestions.  ...  The hearing aids are designed to be essentially transparent to binaural acoustic cues.  ...  In the present case, 8 kHz -6 kHz equals 2 kHz. To avoid aliasing errors, DSP designs generally must include anti-aliasing filter methods prior to the A/D converter.  ... 
doi:10.1177/108471389700200202 pmid:25425875 pmcid:PMC4172287 fatcat:aucrcrrh45dkvm4bxu4yui4xoa

XVII International Conference Noise Control 2016 Gniew, Poland, May 22 – 25, 2016

2016 Archives of Acoustics  
The relevant issue in this paper concerns the selection of geometric parameters of the baffle systems used for acoustic treatment in, inter alia, public and industrial buildings.  ...  Formulated conclusions indicate the way how to select a construction of spatial panels for a pre-established function.  ...  Training with fit test systems is the best way for effective education of workers who wear hearing protection devices.  ... 
doi:10.1515/aoa-2016-0039 fatcat:pe7docwnczfnzhqxsxkmxxsdki

Quantitative assessment of spatial sound distortion by the semi-ideal recording point of a hear-through device

Pablo Hoffmann, Flemming Christensen, Dorte Hammersho/i
2013 Journal of the Acoustical Society of America  
Quantitative assessment of spatial sound distortion by the semi-ideal recording point of a hear-through device.  ...  We present two devices: A closed microfluidic chip designed for pre-alignment, size-based separation, isolation, up-concentration, lysis of cells, and an open multi-well microplate designed for parallel  ...  As in our earlier work, the use of a Chimerical, Evolutionary, Genetic Algorithm, having a "feature seeking" fitness function, is retained, for deriving optimal multiplicative arrangements of non-commuting  ... 
doi:10.1121/1.4805375 fatcat:u4bvxh6karet3avpjdhpfwqpf4

The 2019 surface acoustic waves roadmap

Per Delsing, Andrew N Cleland, Martin J A Schuetz, Johannes Knörzer, Géza Giedke, J Ignacio Cirac, Kartik Srinivasan, Marcelo Wu, Krishna Coimbatore Balram, Christopher Bäuerle, Tristan Meunier, Christopher J B Ford (+27 others)
2019 Journal of Physics D: Applied Physics  
Acoustic radio frequency filters, for instance, are integral parts of wireless devices.  ...  of industrial relevance and can been found in a myriad of devices employing these nanoscale earthquakes on a chip.  ...  M J A S would like to thank the Humboldt foundation for financial support.  ... 
doi:10.1088/1361-6463/ab1b04 fatcat:7dut4ybgwbdexkicmwcx3otj2a

Extracting vowel characteristics from smoothed spectra

Jean‐Sylvain Lienard, Maria‐Gabriella Di Benedetto
2000 Journal of the Acoustical Society of America  
Non-native listeners in both normal and hearing-impaired groups required a greater intensity for equal intelligibility than for the comparative native normal and hearing-impaired listeners.  ...  Direct full-scale computational simulation of electronic acoustic wave devices is among the most challenging problems for designing high performance devices.  ...  Another method is to measure the total A-weighted energy under the protection device or devices.  ... 
doi:10.1121/1.4743686 fatcat:i5lv7vu575hyjaezn5pllmxyyu

New ISO standards for hearing protectors

Torben Poulsen
2000 Journal of the Acoustical Society of America  
Non-native listeners in both normal and hearing-impaired groups required a greater intensity for equal intelligibility than for the comparative native normal and hearing-impaired listeners.  ...  Direct full-scale computational simulation of electronic acoustic wave devices is among the most challenging problems for designing high performance devices.  ...  The latter method, designated as Method B, requires the use of audiometrically experienced subjects who are naive in the use of hearing protection.  ... 
doi:10.1121/1.4743748 fatcat:tzupe2dywvdlba4cl35xczgrqq

Nonnative listeners prefer perceptual cues they know from their L1: Dutch listeners use vowel duration less than English listeners for English final /v/‐/f/

Mirjam Broersma
2008 Journal of the Acoustical Society of America  
Acoustic Design for Open Plan Spaces.  ...  In this presentation, assuming point focusing of the laser pulses, we propose a three-dimensional ͑3D͒ semi-analytical model for acoustic waves generation and propagation in a partly transparent isotropic  ...  This work describes a device designed to enhanced one's existing echolocation ability. The device repeatedly emits an inaudible, ultrasonic ''clickЉ, several times per second.  ... 
doi:10.1121/1.2933287 fatcat:gqdetkftz5cmrghkql35figuw4

Green's-function reaction dynamics: A particle-based approach for simulating biochemical networks in time and space

Jeroen S. van Zon, Pieter Rein ten Wolde
2005 Journal of Chemical Physics  
Acoustic Design for Open Plan Spaces.  ...  In this presentation, assuming point focusing of the laser pulses, we propose a three-dimensional ͑3D͒ semi-analytical model for acoustic waves generation and propagation in a partly transparent isotropic  ...  This work describes a device designed to enhanced one's existing echolocation ability. The device repeatedly emits an inaudible, ultrasonic ''clickЉ, several times per second.  ... 
doi:10.1063/1.2137716 pmid:16392952 fatcat:tyehqewfnzahfju3rxvivugvaa

Estimating the size and spatial distribution of bubble clouds in an underwater acoustic test tank

Fred D. Holt, J. Daniel Park, R. Lee Culver, David Coles, Timothy Leighton
2010 Journal of the Acoustical Society of America  
With postanalysis this results in time-dependent positions for each of the acoustic sensors. Every channel is calibrated.  ...  A seismic source vessel shot a series of lines designed to give detailed angle and range information concerning the field of the primary arrival.  ...  the fitting and proper use of their hearing protection devices.  ... 
doi:10.1121/1.3384193 fatcat:hbesn7bgzbhvfjiy4sewacwaxe

Temporal and spectral resolution of hearing in patients with precipitous hearing loss: Gap release of masking (GRM) and the role of cognitive function

Martin D. Vestergaard
2005 Journal of the Acoustical Society of America  
Optimal speech level for speech transmission in a noisy environment for young adults and aged persons. Hayato Sato, Ryo Ota, Masayuki Morimoto ͑Environ. Acoust.  ...  Hence hearing loss due to aging is a considerable factor for classrooms. In this study, the optimal speech level in noisy fields for both young adults and aged persons was investigated.  ...  design of natural ventilation inlet and outlet devices for both acoustical and airflow performance.  ... 
doi:10.1121/1.4785958 fatcat:srovwo2u65dsrl7vcobmwfm3pe

A variable passive low‐frequency absorber

Niels Werner Larsen, Eric R. Thompson, Anders Christian Gade
2005 Journal of the Acoustical Society of America  
Hence hearing loss due to aging is a considerable factor for classrooms. In this study, the optimal speech level in noisy fields for both young adults and aged persons was investigated.  ...  Optimal speech level for speech transmission in a noisy environment for young adults and aged persons. Hayato Sato, Ryo Ota, Masayuki Morimoto ͑Environ. Acoust.  ...  design of natural ventilation inlet and outlet devices for both acoustical and airflow performance.  ... 
doi:10.1121/1.4785850 fatcat:fjm27kdi7vf5jmboifxktuegba

Relationship between room shape and acoustics of rectangular concert halls

Andrzej K. Klosak, Anders C. Gade
2008 Journal of the Acoustical Society of America  
Acoustic Design for Open Plan Spaces.  ...  In this presentation, assuming point focusing of the laser pulses, we propose a three-dimensional ͑3D͒ semi-analytical model for acoustic waves generation and propagation in a partly transparent isotropic  ...  Reliable and accurate operation of machines and devices with as few outages as possible is desired. The significance of a life cycle design of machines and devices is growing.  ... 
doi:10.1121/1.2933354 fatcat:eymbpllxwjcfdbkedeijrtwbwq

A binaural advantage in the subjective modulation transfer function with simple impulse responses

Eric R. Thompson, Torsten Dau
2008 Journal of the Acoustical Society of America  
Acoustic Design for Open Plan Spaces.  ...  In this presentation, assuming point focusing of the laser pulses, we propose a three-dimensional ͑3D͒ semi-analytical model for acoustic waves generation and propagation in a partly transparent isotropic  ...  Therefore, the combination of SSP and NN ͑SSP-NN͒ presents a powerful technique for ultrasonic NDE. The SSP is achieved by using Gaussian bandpass filters.  ... 
doi:10.1121/1.2933699 fatcat:4nc5pg4ysbhgrjcatwhr7fh77q

On determination of microphone response and other parameters by a hybrid experimental and numerical method

Salvador Barrera‐Figueroa, Finn Jacobsen, Knud Rasmussen
2008 Journal of the Acoustical Society of America  
Acoustic Design for Open Plan Spaces.  ...  In this presentation, assuming point focusing of the laser pulses, we propose a three-dimensional ͑3D͒ semi-analytical model for acoustic waves generation and propagation in a partly transparent isotropic  ...  Therefore, the combination of SSP and NN ͑SSP-NN͒ presents a powerful technique for ultrasonic NDE. The SSP is achieved by using Gaussian bandpass filters.  ... 
doi:10.1121/1.2933455 fatcat:gl6kkwih6rbkriigc7g6ghdlnq

The importance of bass clarity in pop and rock venues

Niels W. Adelman‐Larsen, Eric R. Thompson
2008 Journal of the Acoustical Society of America  
Acoustic Design for Open Plan Spaces.  ...  In this presentation, assuming point focusing of the laser pulses, we propose a three-dimensional ͑3D͒ semi-analytical model for acoustic waves generation and propagation in a partly transparent isotropic  ...  Therefore, the combination of SSP and NN ͑SSP-NN͒ presents a powerful technique for ultrasonic NDE. The SSP is achieved by using Gaussian bandpass filters.  ... 
doi:10.1121/1.2932922 fatcat:fvtlbt6x5vgelp5p67x53qtvgi
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