一种耳鸣治疗声优化算法的研究  

Research on an optimized algorithm of tinnitus therapeutic sound

作　　者：宫琴 王赫[3] 马涛 丁鸫翔 Gong Qin;Wang He;Ma Tao;Ding Dongxiang(Wuxi Research Institute of Applied Technologies,Tsinghua University,Wuxi 214000,China;Department of Biomedical Engineering,Tsinghua University,Bejing 100084,China;Wuxi QingEr HuaSheng Technology Co.,Ltd.,Wuxi 214000,China)

机构地区：[1]清华大学无锡应用技术研究院,无锡2214000 [2]清华大学医学院生物医学工程系,北京100084 [3]无锡清耳话声科技有限公司,无锡214000

出　　处：《仪器仪表学报》2023年第3期172-181,共10页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金(61871252,61271133);江苏省重点研发计划社会发展项目(BE2020635)资助。

摘　　要：为解决传统耳鸣治疗声难以兼顾治疗效果和音频悦耳程度等问题,本文提出了一种兼顾音频悦耳程度和耳鸣治疗效果的创新音频处理算法。首先遵循耳蜗感音的对数分布特性,基于固定上下限截止频率的数字滤波器组对原始自然声的音频进行分频滤波;然后对原始自然声的音频沿着频率对数轴均衡,使得声频在全频率范围内实现能量均衡的同时,兼顾治疗效果。结果显示,经过对数能量均衡处理后的音频,不但整体符合粉红噪声的分布,且在4001~8000 Hz和8001~10000 Hz高频段内的能量得到显著提高,处理后的音频能量分别超过原始音频能量15倍和100倍。本文提出的创新算法不但满足耳鸣患耳对音频感音的悦耳习惯,而且为高频耳鸣无疗效的国际难题提供了治疗方案。To solve the problem that it is difficult to balance the therapeutic effect and the pleasant degree of audio in the traditional tinnitus treatment,an innovative audio processing algorithm is proposed,which considers the pleasant degree of audio and the therapeutic effect of tinnitus.The logarithmic distribution characteristics of cochlear sensing are followed.The original natural sound based on the digital filter set with fixed upper and lower limit cutoff frequencies is divided and filtered,and the original natural sound along the frequency logarithmic axis is equalized.The therapeutic sound can achieve energy balance in the full frequency range while taking into account the therapeutic effect.The results show that the audio after logarithmic energy balance processing not only conforms to the distribution of pink noise at whole frequency bands,but also significantly improves the energy at the high frequency bands of 4001~8000 Hz and 8001~10000 Hz.The audio energy after processing increased to 15 times and 100 times more than the original audio energy,respectively.The proposed innovative algorithm not only satisfies the pleasant habit of tinnitus-affected ears to audio sensibility,but also provides a treatment scheme for the international problem that high-frequency tinnitus has no effective therapy.

关 键 词：耳鸣 治疗声 音频能量均衡 高频耳鸣疗效 

分 类 号：TH785.1[机械工程—仪器科学与技术] R318.6[机械工程—精密仪器及机械]