Performance of directional microphones for hearing aids: real-world versus simulation.
The purpose of this study was to assess the accuracy of clinical and laboratory measures of directional microphone benefit. Three methods of simulating a noisy restaurant listening situation ([1] a multimicrophone/multiloudspeaker simulation, the R-SPACE, [2] a single noise source behind the listene...
| Publicado en: | Journal of the American Academy of Audiology Vol. 15; no. 6; pp. 440 - 441 |
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| Autores principales: | , , , |
| Formato: | CEU exam questions research tables/charts Journal Article |
| Publicado: |
Thieme Medical Publishing Inc.
Jun2004
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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=106563620&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106563620 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10500545 9OC jtl: Journal of the American Academy of Audiology issn: 10500545 maglogo: Y pubinfo: dt: Jun2004 vid: 15 iid: 6 pid: 2811 pub: Thieme Medical Publishing Inc. place: New York, New York artinfo: ui: 106563620 2005018896 10.3766/jaaa.15.6.5 NLM15341225 106563620 ppf: 440 ppct: 1 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Performance of directional microphones for hearing aids: real-world versus simulation. aug: au: Compton-Conley CL Neuman AC Killion MC Levitt H affil: Department of Hearing, Speech, and Language Sciences, Gallaudet University, 800 Florida Avenue, NE, Washington, DC 20002; cynthia.conley@gallaudet.edu sug: subj: Hearing Aids Evaluation Noise Speech Perception Acoustics Adult Audiorecording Descriptive Statistics Education, Continuing (Credit) Environment Food Services Funding Source Naturalistic Inquiry Post Hoc Analysis Repeated Measures Simulations Speech Discrimination Tests Transducers Human Adult: 19-44 years ab: The purpose of this study was to assess the accuracy of clinical and laboratory measures of directional microphone benefit. Three methods of simulating a noisy restaurant listening situation ([1] a multimicrophone/multiloudspeaker simulation, the R-SPACE, [2] a single noise source behind the listener, and [3] a single noise source above the listener) were evaluated and compared to the 'live' condition. Performance with three directional microphone systems differing in polar pattern (omnidirectional, supercardioid, and hypercardioid array) and directivity indices (0.34, 4.20, and 7.71) was assessed using a modified version of the Hearing in Noise Test (HINT). The evaluation revealed that the three microphones could be ordered with regard to the benefit obtained using any of the simulation techniques. However, the absolute performance obtained with each microphone type differed among simulations. Only the R-SPACE simulation yielded accurate estimates of the absolute performance of all three microphones in the live condition. Performance in the R-SPACE condition was not significantly different from performance in the 'live restaurant' condition. Neither of the single noise source simulations provided accurate predictions of real-world (live) performance for all three microphones. pubtype: Academic Journal doctype: CEU exam questions research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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