The Hearing-Aid Speech Quality Index (HASQI)
The Hearing-Aid Speech Quality Index (HASQI)
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DOI：
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发表时间：
2010-06
影响因子：
1.4
通讯作者：
J. Kates;K. Arehart
中科院分区：
文献类型：
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作者：
J. Kates;K. Arehart
音频设备（例如助听器）中的信号修改包括非线性和线性处理。开发了一个索引，以预测噪声，非线性失真和线性过滤对语音质量的影响。该索引专为正常听力和听力受损的听众而设计。它首先要代表听觉外围的外围，并结合了听力受损的各个方面。人工耳蜗模型之后是提取与质量判断有关的信号特征。一组功能衡量噪声和非线性失真对语音质量的影响，而第二组特征则测量线性滤波的效果。助听器的语音质量指数（HASQI）是针对两组功能中每个功能计算的子区域的乘积。通过将模型预测与正常听力和听力受损的听众进行的质量判断进行比较，以评估模型，以含有噪声，非线性失真，线性处理以及这些信号降解的组合。
Signal modifications in audio devices such as hearing aids include both nonlinear and linear processing. An index is developed for predicting the effects of noise, nonlinear distortion, and linear filtering on speech quality. The index is designed for both normal-hearing and hearing-impaired listeners. It starts with a representation of the auditory periphery that incorporates aspects of impaired hearing. The cochlear model is followed by the extraction of signal features related to the quality judgments. One set of features measures the effects of noise and nonlinear distortion on speech quality, whereas second set of features measures the effects of linear filtering. The hearing-aid speech quality index (HASQI) is the product of the subindices computed for each of the two sets of features. The models are evaluated by comparing the model predictions with quality judgments made by normal-hearing and hearing-impaired listeners for speech stimuli containing noise, nonlinear distortion, linear processing, and combinations of these signal degradations.