A FREQUENCY IMPORTANCE FUNCTION FOR CONTINUOUS DISCOURSE
A FREQUENCY IMPORTANCE FUNCTION FOR CONTINUOUS DISCOURSE
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DOI：
10.1121/1.394633
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发表时间：
1987-04-01
影响因子：
2.4
通讯作者：
SHERBECOE, RL
中科院分区：
文献类型：
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作者：
STUDEBAKER, GA;PAVLOVIC, CV;SHERBECOE, RL
正常听力受试者估计连续话语（CD）通道的可懂度由三个谈话者（两男一女）在135个条件下的过滤和信噪比。CD的可懂度和清晰度指数（传递函数）之间的关系与ANSI S3.5-1969中发现的任何关系都不同。此外，发现较低频率对于CD的可懂度比对于无意义音节和除了合成句子之外可获得数据的其他类型的语音的识别相对更重要[Speaks，J. Speech Hear. Res. 10，289-298（1967）]。将听觉频谱分成两个同等重要的部分的频率（交叉频率）被发现比ANSI S3.5-1969中发现的无意义音节的男性谈话者的交叉频率低约0.5 oct，比French和Steinberg报道的无意义音节的男性和女性谈话者的交叉频率低约0.7 oct。J. Acoust.美国社会19，90-119（1947）]。
Normal hearing subjects estimated the intelligibility of continuous discourse (CD) passages spoken by three talkers (two male and one female) under 135 conditions of filtering and signal-to-noise ratio. The relationship between the intelligibility of CD and the articulation index (the transfer function) was different from any found in ANSI S3.5-1969. Also, the lower frequencies were found to be relatively more important for the intelligibility of CD than for identification of nonsense syllables and other types of speech for which data are available except for synthetic sentences [Speaks, J. Speech Hear. Res. 10, 289-298 (1967)]. The frequency which divides the auditory spectrum into two equally important halves (the crossover frequency) was found to be about 0.5 oct lower for the CD used in this study than the crossover frequency for male talkers of nonsense syllables found in ANSI S3.5-1969 and about 0.7 oct lower than the one for combined male and female talkers of nonsense syllables reported by French and Steinberg [J. Acoust. Soc. Am. 19, 90-119 (1947)].