Journal ArticleDOI
Signal-to-Noise Ratio Advantage of Binaural Hearing Aids and Directional Microphones under Different Levels of Reverberation
TLDR
The results suggest that the signal-to-noise ratio is optimized when binaural hearing aids with directional microphones are used in rooms with short reverberation times.Abstract:
The signal-to-noise ratio necessary for a constant performance level was determined for normally hearing and hearing-impaired subjects under three levels of reverberation (0.3, 0.6, and 1.2 s) with...read more
Citations
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BookDOI
Applications of digital signal processing to audio and acoustics
Mark Kahrs,Karlheinz Brandenburg +1 more
TL;DR: There are whole classes of algorithms that the speech community is not interested in pursuing or using in digital signal processing of sound and these algorithms and techniques are revealed in this book.
Journal ArticleDOI
Hearing Loss, Aging, and Speech Perception in Reverberation and Noise
Karen S. Helfer,Laura Ann Wilber +1 more
TL;DR: Results suggest that both age and amount ofpure-tone hearing loss contribute to senescent changes in the ability to understand noisy, reverberant speech: pure-tone threshold and age were correlated negatively with performance in reverberation plus noise, although age and pure- tone hearing loss were not correlated with each other.
Journal ArticleDOI
Cochlear implantation with hearing preservation yields significant benefit for speech recognition in complex listening environments
René H. Gifford,Michael F. Dorman,Henryk Skarżyński,Artur Lorens,Marek Polak,Colin L. W. Driscoll,Peter S. Roland,Craig A. Buchman +7 more
TL;DR: It is suggested that preserved low-frequency hearing improves speech understanding for CI recipients, and testing in complex listening environments, in which binaural timing cues differ for signal and noise, may best demonstrate the value of having two ears with low- frequencies.
Journal ArticleDOI
Challenges and Recent Developments in Hearing Aids: Part I. Speech Understanding in Noise, Microphone Technologies and Noise Reduction Algorithms
TL;DR: This review discusses the challenges in hearing aid design and fitting and the recent developments in advanced signal processing technologies to meet these challenges and discusses the basic concepts and the building blocks of digital signal processing algorithms.
PatentDOI
Hearing aid having plural microphones and a microphone switching system
TL;DR: In this article, a hearing aid apparatus is disclosed that employs both an omnidirectional microphone and at least one directional microphone of at least the first order, and the electrical signals output from the directional microphone are supplied to an equalization amplifier which at least partially equalizes the amplitude of low frequency electrical signal components of the electrical signal with the amplitude amplitude of the mid and high frequency electrical signals components of electrical signals of the directional microphones.