Leijon A, Lindkvist A, Ringdahl A, Israelsson B
Department of Audiology, Sahlgren's Hospital, Gothenburg, Sweden.
Ear Hear. 1990 Aug;11(4):299-305. doi: 10.1097/00003446-199008000-00008.
The insertion gain preferred by a group of 26 moderately hearing-impaired, elderly hearing-aid users was investigated in everyday listening situations. The subjects used monaural behind-the-ear aids, carefully fitted according to a prescription formula of the half-gain type, validated and used at National Acoustic Laboratories, Australia. The fitting was checked with real-ear measurements of insertion gain and reviewed at one or more follow-up sessions. The subjects were strictly instructed to try the recommended volume control setting before reporting which setting they preferred. The prescription significantly over-estimated preferred gain by about 7 dB. No correlation could be detected between prescribed versus preferred gain differences and the amount of previous hearing-aid use or the degree of subjective hearing problems.
在日常聆听环境中，对26名中度听力受损的老年助听器使用者所偏好的插入增益进行了调查。受试者使用单耳耳背式助听器，这些助听器是根据半增益类型的处方公式精心适配的，该公式在澳大利亚国家声学实验室经过验证并使用。通过插入增益的真耳测量来检查适配情况，并在一次或多次随访中进行复查。受试者被严格要求在报告他们偏好的设置之前尝试推荐的音量控制设置。该处方显著高估了约7 dB的偏好增益。在规定增益与偏好增益差异之间，与之前使用助听器的时长或主观听力问题的程度之间，均未检测到相关性。
