Challenges and recent developments in hearing aids: part 1. Speech understanding in noise, microphone technologies and noise reduction algorithms.
This review discusses the challenges in hearing aid design and fitting and the recent developments in advanced signal processing technologies to meet these challenges. The first part of the review discusses the basic concepts and the building blocks of digital signal processing algorithms, namely, t...
| Publicado en: | Trends in Amplification Vol. 8; no. 3; pp. 83 - 125 |
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| Autor principal: | |
| Formato: | pictorial review tables/charts Journal Article |
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Sage Publications Inc.
2004
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106626461&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106626461 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10847138 KZB jtl: Trends in Amplification issn: 10847138 maglogo: N pubinfo: dt: 2004 vid: 8 iid: 3 pid: 30348 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 106626461 106626461 2005077410 10.1177/108471380400800302 NLM15678225 106626461 ppf: 83 ppct: 42 formats: fmt: @attributes: type: P tig: atl: Challenges and recent developments in hearing aids: part 1. Speech understanding in noise, microphone technologies and noise reduction algorithms. aug: au: Chung K affil: Department of Speech, Language and Hearing Sciences, Purdue University, 500 Oval Drive, West Lafayette, IN 47907; kingchung@purdue.edu sug: subj: Hearing Aids Trends Speech Perception Algorithms Equipment Design Noise Signal Processing, Computer Assisted Sound Spectrography Transducers ab: This review discusses the challenges in hearing aid design and fitting and the recent developments in advanced signal processing technologies to meet these challenges. The first part of the review discusses the basic concepts and the building blocks of digital signal processing algorithms, namely, the signal detection and analysis unit, the decision rules, and the time constants involved in the execution of the decision. In addition, mechanisms and the differences in the implementation of various strategies used to reduce the negative effects of noise are discussed. These technologies include the microphone technologies that take advantage of the spatial differences between speech and noise and the noise reduction algorithms that take advantage of the spectral difference and temporal separation between speech and noise. The specific technologies discussed in this paper include first-order directional microphones, adaptive directional microphones, second-order directional microphones, microphone matching algorithms, array microphones, multichannel adaptive noise reduction algorithms, and synchrony detection noise reduction algorithms. Verification data for these technologies, if available, are also summarized. pubtype: Academic Journal doctype: pictorial review tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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