Simulated real-ear measurements of benefit from digital feedback suppression.
Digital feedback suppression (DFS) enables users of hearing instruments (HI) to benefit from amplification levels that normally would provoke whistling or poor sound quality. A standardized test for the measurement of DFS benefit is not available. This paper proposes and evaluates an objective metho...
| Publicado en: | International Journal of Audiology Vol. 47; no. 2; pp. 51 - 59 |
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| Autor principal: | |
| Formato: | research Journal Article |
| Publicado: |
Taylor & Francis Ltd
Feb2008
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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=105861878&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105861878 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Feb2008 vid: 47 iid: 2 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 105861878 2009778348 10.1080/14992020701643818 NLM18236236 105861878 ppf: 51 ppct: 8 formats: fmt: @attributes: type: P tig: atl: Simulated real-ear measurements of benefit from digital feedback suppression. aug: au: Olsen Sø affil: Department of Clinical Sciences, Logopedics, Phoniatrics and Audiology, Lund University, Sweden. sol@widex.com sug: subj: Acoustic Stimulation Audiometry Equipment and Supplies Feedback Hearing Aids Rehabilitation of Persons with Hearing Loss Equipment and Supplies Equipment Design Models, Anatomic Models, Biological Reproducibility of Results Software Human ab: Digital feedback suppression (DFS) enables users of hearing instruments (HI) to benefit from amplification levels that normally would provoke whistling or poor sound quality. A standardized test for the measurement of DFS benefit is not available. This paper proposes and evaluates an objective method for assessment of extra feedback-free amplification (headroom) provided by a given DFS. It is shown that the whistle-free loop gain can be calculated from data obtained with simulated real-ear measurements with the modified pressure method. Test-retest trials were carried out to assess the reliability of the proposed method. Also, a method was developed for defining an appropriate gain level at which the proposed measurement should be carried out. It is concluded that the proposed method needs to be modified to provide useful information. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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