Evaluating the articulation index for auditory-visual consonant recognition
Evaluating the articulation index for auditory-visual consonant recognition
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DOI：
10.1121/1.417950
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发表时间：
1996-10-01
影响因子：
2.4
通讯作者：
Walden, BE
中科院分区：
文献类型：
--
作者：
Grant, KW;Walden, BE
ANSI标准计算清晰度指数（AI）[ANSI S3.5-1969（R1986）]的准确性通过在各种带通滤波语音条件下测量听觉（A）、视觉（V）和听觉-视觉（AV）辅音识别来评估。与ANSI预测相反，具有相同听觉AI的过滤条件不一定导致相同的视觉AI。语音的低频带往往比高频带更有利于AV辅音识别。不同的过滤条件产生的听觉错误模式的分析表明，A和V的冗余度和A和V线索相结合时获得的利益量之间存在很强的负相关性。这些数据表明，ANSI语音-视觉AI程序是不足以预测AV辅音识别性能的条件下，严重的频谱整形。(C)1996年美国声学学会。
Adequacy of the ANSI standard for calculating the articulation index (AI) [ANSI S3.5-1969 (R1986)] was evaluated by measuring auditory (A), visual (V), and auditory-visual (AV) consonant recognition under a variety of bandpass-filtered speech conditions. Contrary to ANSI predictions, filter conditions having the same auditory AI did not necessarily result in the same auditory-visual AI. Low-frequency bands of speech tended to provide more benefit to AV consonant recognition than high-frequency bands. Analyses of the auditory error patterns produced by the different filter conditions showed a strong negative correlation between the degree of A and V redundancy and the amount of benefit obtained when A and V cues were combined. These data indicate that the ANSI auditory-visual AI procedure is inadequate for predicting AV consonant recognition performance under conditions of severe spectral shaping. (C) 1996 Acoustical Society of America.