This paper presents an index designed to predict music quality for individuals listening through hearing aids. The index is "intrusive", that is, it compares the degraded signal being evaluated to a reference signal. The index is based on a model of the auditory periphery that includes the effects of hearing loss. Outputs from the auditory model are used to measure changes in the signal time-frequency envelope modulation, temporal fine structure, and long-term spectrum caused by the hearing aid processing. The index is constructed by combining a term sensitive to noise and nonlinear distortion with a second term sensitive to changes in the long-term spectrum. The index is fitted to an existing database of music quality judgments made by listeners having normal or impaired hearing. The data comprise ratings for three music excerpts (classical orchestra, jazz trio, and jazz singer), each processed through 100 conditions representative of hearing-aid processing and listening situations. The overall accuracy of the index is high, with a correlation coefficient of 0.970 when computed over all of the processing conditions and averaged over the combined groups of listeners having normal and impaired hearing.

中文翻译：

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助听音频质量指数（HAAQI）。

本文提出了一种指数，旨在预测通过助听器收听的个人的音乐质量。索引是“侵入式”的，即，它将正在评估的降级信号与参考信号进行比较。该指数基于听觉外围的模型，该模型包括听力损失的影响。听觉模型的输出用于测量由助听器处理引起的信号时频包络调制，时间精细结构和长期频谱的变化。该指数是通过将对噪声和非线性失真敏感的术语与对长期频谱变化敏感的第二个术语相结合而构建的。该索引适合于听力正常或受损的听众做出的音乐质量判断的现有数据库。数据包括三个音乐摘录（古典乐团，爵士三重奏和爵士歌手）的评分，每个摘录均通过代表助听器处理和聆听情况的100个条件进行处理。该指数的总体准确性很高，当在所有处理条件下计算时，相关系数为0.970，在听力正常和受损的听众的合并组中取平均。