Improved estimation of frequency importance functions.
Improved estimation of frequency importance functions.
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改进了频率重要性函数的估计。
DOI：
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发表时间：
2013
影响因子：
2.4
通讯作者：
J. Kates
中科院分区：
文献类型：
--
作者：
J. Kates
语音清晰度指数（SII）基于跨频率的语音线索的可听度来估计语音清晰度。频率重要性函数给出了不同频率下语音可听度对SII的相对贡献。频率重要性函数通常使用复杂的多步骤过程从可懂度数据估计。本文提出了一种新的方法来计算频率重要性函数直接从可懂度数据的基础上的非线性联合优化的频率重要性函数和SII曲线拟合参数。使用新方法的一个例子是以前出版的W-22词表可懂度数据。
The Speech Intelligibility Index (SII) estimates speech intelligibility based on the audibility of speech cues across frequency. The frequency importance function gives the relative contribution to the SII of the speech audibility at different frequencies. The frequency importance function is usually estimated from the intelligibility data using a complicated multi-step procedure. This paper presents a new procedure for computing the frequency importance function directly from the intelligibility data based on nonlinear joint optimization of the frequency importance function and the SII curve-fitting parameters. An example of using the new approach is presented for previously published W-22 word list intelligibility data.