WASHINGTON —The Food and Drug Administration said Monday that it has warned the nation’s six largest manufacturers of hearing aids to stop “misleading the public” about the effectiveness of their products or face regulatory action. In letters sent April 16, the agency told the companies that ...
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In a meeting with FCC officials, the handset manufacturer representatives explained that at the time a technical standard to measure the compatibility between digital mobile phones and hearing aids was developed, most of the focus regarding GSM phones was on products that used the 1.9 gigahertz band...
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hearing aid verificationhearing aidspediatricSpeech Intelligibility IndexBackground Hearing aid prescriptive methods are a commonly recommended component of evidence-based preferred practice guidelines and are often implemented in the hearing aid programming software. Previous studies evaluating hearing aid ...
USA based manufacturer of hearing aids that has in the recent years extended it's reach into the manufacture of in ear headphones. Homepage:http://www.westone.com Westrex This is essentially what is left of the oldWestern Electricelectronic manufacturing business and indeed they licence that trad...
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- 《British Journal of Audiology》 被引量: 324发表: 1999年 Comparison of the NAL(R) and Cambridge formulae for the fitting of linear hearing aids. The formulae prescribe the desired insertion gain as a function of frequency, based on the audiometric threshold. The two formulae have a ...