Clinical Validation of the Ansi C63.19 Draft Standard for Measuring Compatibility between Digital Wireless Phones and Hearing Aids

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dc.contributor.authorRobert E. Schlegel
dc.contributor.authorHank Grant
dc.contributor.authorTamy L. Fry
dc.date.accessioned2016-01-14T19:53:45Z
dc.date.accessioned2016-03-30T15:33:38Z
dc.date.available2016-01-14T19:53:45Z
dc.date.available2016-03-30T15:33:38Z
dc.date.issued2000-07-01
dc.description.abstractAcoustic interference can be generated in hearing aids by the pulsed transmission signal of a digital wireless phone. This interference, resembling a buzzing, clicking, or static sound, is annoying and can seriously degrade the intelligibility of the speech. The objective of the ANSI C63.19 Draft Standard is to provide a simple, reliable test procedure for measuring the immunity of hearing aids to this interference. To clinically validate the standard, hearing aids were custom manufactured for eighteen hearing-impaired participants. The participants rated the effects of the interference experienced when using five digital wireless phone technologies (CDMA at 800 and 1900 MHz, TDMA-50 Hz at 800 and 1900 MHz, and TDMA-217 Hz at 1900 MHz) at five transmission power levels (0, 6, 12, 18, and 24 dBm). More than two-thirds of the subjects responded as predicted by acoustic measurements of the interference. The remaining subjects experienced difficulties unrelated to wireless phone interference due to severe hearing loss or excessive feedback. These results support the use of acoustic measurements of immunity as the basis for the ANSI C63.19 standard.en_US
dc.description.peerreviewYesen_US
dc.description.peerreviewnoteshttps://us.sagepub.com/en-us/nam/manuscript-submission-guidelinesen_US
dc.identifier.citationSchlegel, R. E., Grant, H., & Fry, T. L. (2000). Clinical Validation of the Ansi C63.19 Draft Standard for Measuring Compatibility between Digital Wireless Phones and Hearing Aids. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 44(26), 144-147. doi: 10.1177/154193120004402603en_US
dc.identifier.doi10.1177/154193120004402603en_US
dc.identifier.urihttp://hdl.handle.net/11244/25426
dc.language.isoen_USen_US
dc.publisherProceedings of the Human Factors and Ergonomics Society Annual Meeting
dc.rights.requestablefalseen_US
dc.titleClinical Validation of the Ansi C63.19 Draft Standard for Measuring Compatibility between Digital Wireless Phones and Hearing Aidsen_US
dc.typeResearch Articleen_US

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