基于压缩gammachirp滤波器的听力损伤模拟器

Misaki Nagae, T. Irino, R. Nisimura, Hideki Kawahara, R. Patterson
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引用次数: 9

摘要

本文介绍了一种模拟器,用于向听力正常(NH)的听众呈现听力受损(HI)听众的体验。该仿真器基于压缩伽马机(cGC)滤波器,用于从陷波噪声掩蔽数据中导出电平相关滤波器形状和耳蜗压缩函数。cGC的水平依赖性被逆转,产生反向压缩,用于重新合成声音,取消NH听者听觉系统施加的压缩。为了提高图形用户界面(GUI)的处理速度,新引入了一种基于帧的分析/合成程序,该程序允许用户在HI患者的听力图范围内控制压缩程度。该模拟器适用于语言听力治疗师(ST)和患者家属。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Hearing impairment simulator based on compressive gammachirp filter
This paper describes a simulator for presenting normal hearing (NH) listeners with the experience of a hearing impaired (HI) listener. The simulator is based on the compressive gammachirp (cGC) filter used to derive level-dependent filter shapes and the cochlear compression function from to notched-noise masking data. The level dependence of the cGC is reversed to produce inverse compression which is used to resynthesize sounds that cancel the compression applied by the auditory system of the NH listener. A frame-based analysis/synthesis procedure is newly introduced to improve processing speed for a graphical user interface (GUI) that allows the users to control the degree of compression within the range of the audiogram of the HI person. The simulator is intended for speech-language-hearing therapists (ST) and patients' families.
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