开发一种新的多通道压缩助听器初始拟合方法：CAMEQ2-HF。

Development of a new method for deriving initial fittings for hearing aids with multi-channel compression: CAMEQ2-HF.

机构信息

Department of Experimental Psychology, University of Cambridge, UK.

出版信息

Int J Audiol. 2010 Mar;49(3):216-27. doi: 10.3109/14992020903296746.

DOI:10.3109/14992020903296746

PMID:20151930

Abstract

Moore et al (1999b) described a procedure, CAMEQ, for the initial fitting of multi-channel compression hearing aids. The procedure was derived using a model of loudness perception for impaired hearing. We describe here the development of a new fitting method, CAMEQ2-HF, which differs from CAMEQ in the following ways: (1) CAMEQ2-HF gives recommended gains for centre frequencies up to 10 kHz, whereas the upper limit for CAMEQ is 6 kHz; (2) CAMEQ is based on the assumption that the hearing aid user faces the person they wish to hear and uses a free-field-to-eardrum transfer function for frontal incidence. CAMEQ2-HF is based on the assumption that the user may wish to hear sounds from many directions, and uses a diffuse-field-to-eardrum transfer function; (3) CAMEQ2-HF is based on an improved loudness model for impaired hearing; (4) CAMEQ2-HF is based on recent wideband measurements of the average spectrum of speech.

摘要

摩尔等人（1999b）描述了一种用于初始适配多通道压缩助听器的程序，CAMEQ。该程序是使用受损听力的响度感知模型推导出来的。我们在这里描述了一种新的适配方法，CAMEQ2-HF，它与 CAMEQ 有以下几点不同：（1）CAMEQ2-HF 为中心频率高达 10 kHz 的增益提供了建议，而 CAMEQ 的上限为 6 kHz；（2）CAMEQ 基于助听器使用者面对他们希望听到的人并使用自由场到鼓膜传递函数用于正面入射的假设。CAMEQ2-HF 基于使用者可能希望从多个方向听到声音的假设，并使用扩散场到鼓膜传递函数；（3）CAMEQ2-HF 基于受损听力的改进响度模型；（4）CAMEQ2-HF 基于最近对语音平均频谱的宽带测量。