Boothroyd A, Hnath-Chisolm T, Hanin L, Kishon-Rabin L
Center for Research in the Speech and Hearing Sciences, Graduate School, City University of New York, New York.
Ear Hear. 1988 Dec;9(6):306-12. doi: 10.1097/00003446-198812000-00006.
Recognition of words in conversational sentences of known topic was measured in nine normally hearing subjects by speechreading alone and by speechreading supplemented with auditory presentation of the output of an electroglottograph. Mean word recognition probability rose from 30% to 77% with the addition of the acoustic signal. When this signal was filtered to remove possible high-frequency spectral cues, the supplemented score fell, but only by a marginally significant 7 percentage points, supporting the conclusion that voice fundamental frequency was the principal source of enhancement. Enhancement occurred for all subjects, regardless of speechreading competence.
通过单独唇读以及唇读辅以声门电图输出的听觉呈现，对9名听力正常的受试者识别已知主题对话句子中的单词的能力进行了测量。加上声学信号后，平均单词识别概率从30%提高到了77%。当对该信号进行滤波以去除可能的高频频谱线索时，补充后的得分下降，但仅下降了7个百分点，差异仅具有边际显著性，这支持了语音基频是增强的主要来源这一结论。所有受试者都出现了增强，无论其唇读能力如何。
