PHYSIOLOGICAL CONTROL OF SIBILANT DURATION - INSIGHTS AFFORDED BY SPEECH COMPENSATION TO DENTAL PROSTHESES
PHYSIOLOGICAL CONTROL OF SIBILANT DURATION - INSIGHTS AFFORDED BY SPEECH COMPENSATION TO DENTAL PROSTHESES
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DOI：
10.1121/1.382796
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发表时间：
1979-01-01
影响因子：
2.4
通讯作者：
STONE, ML
中科院分区：
文献类型：
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作者：
HAMLET, SL;CULLISON, BL;STONE, ML
舌头接触，发声和摩擦[人类语言]的存在之间的时间关系进行了检查/s/和/z/ [辅音]。在/s/和/z/的情况下，产生相同持续时间的声门上发音，产生摩擦的持续时间为/s/长17 ms。这种差异可归因于声门活动。口腔中不熟悉的假牙的存在导致舌头接触牙槽嵴更快，释放更晚。这种生理效应反映在摩擦延长的咝咝声，但声学后果更大，更可靠的/z/比/s/。这种差异的原因是在适应舌头接触的时间，并在空气动力学条件下预期浊与无声的咝咝声。一个快速适应的舌头接触时间被发现，与适应更大的/s/。声带内收在清音咝音结束的时间，其空气动力学后果，建议有助于/s/声学持续时间的相对稳定性。
Temporal relationships among tongue contact, phonation, and presence of frication [human speech] were examined for /s/and/z/ [consonants]. In cases were /s/ and /z/ were produced with a supraglottal articulation of the same duration, the duration of the resulting frication was 17 ms longer for /s/. The difference can be attributed to glottal activity. The presence of an unfamiliar dental prosthesis in the mouth caused the tongue to contact the alveolar ridge sooner and release later. This pysiological effect was reflected in lengthening of frication for sibilants, but the acoustical consequences were greater and more reliable for /z/ than for /s/. Reasons for this difference were sought in adaptation of timing of tongue contact, and in aerodynamic conditions expected for voiced vs. voiceless sibilants. A rapid adaptation of tongue contact timing was found, with the adaptation being greater for /s/. Timing of vocal fold adduction at the end of unvoiced sibilants, and its aerodynamic consequences, are suggested to contribute to the relative stability of /s/acoustical durations.