Development of a new method for deriving initial fittings for hearing aids with multi-channel compression: CAMEQ2-HF
Development of a new method for deriving initial fittings for hearing aids with multi-channel compression: CAMEQ2-HF
复制标题
DOI：
10.3109/14992020903296746
复制
发表时间：
2010-03-01
影响因子：
2.7
通讯作者：
Stone, Michael A.
中科院分区：
文献类型：
--
作者：
Moore, Brian C. J.;Glasberg, Brian R.;Stone, Michael A.
Moore等人(1999b)描述了一种名为CAMEQ的程序，用于多声道压缩助听器的初始安装。该程序是使用听力受损的响度感知模型来推导的。我们在这里描述了一种新的匹配方法CAMEQ2-HF的发展，它与CAMEQ在以下方面不同：(1)CAMEQ2-HF给出了中心频率高达10 kHz的推荐增益，而CAMEQ的上限是6 kHz；(2)CAMEQ基于助听器用户面对他们希望听到的人的假设，并使用自由场到耳膜的传递函数来进行正面入射。CAMEQ2-HF基于用户可能希望听到来自多个方向的声音的假设，并使用扩散场到耳膜的传递函数；(3)CAMEQ2-HF基于针对听力受损的改进的响度模型；(4)CAMEQ2-HF基于最近对语音平均频谱的宽带测量。
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.