Fletcher S G, Newman D G
University of Alabama, Birmingham 35294.
J Acoust Soc Am. 1991 Feb;89(2):850-8. doi: 10.1121/1.1894646.
Sibilant groove place and width were initially examined during [s] [s] in isolation and in CV and VC syllables. The [s] was found to be produced through a 6- to 8-mm-wide groove near the front of the alveolar ridge by one talker and near the back of the ridge by the other. [s] was produced through a 10- to 12-mm groove behind the posterior border of the alveolar ridge by both. In the second experiment three subjects used visual articulatory feedback to vary sibilant groove width and place systematically. One subject was able to do this with comparatively few retrials; one had difficulty with certain targeted grooves; one had difficulty with many targeted grooves. The noises generated were replayed to 14 listeners who labeled them as "s," "probably s," "probably sh," or "sh." They usually heard the sound as [s] when the grooves were narrow and near the front of the alveolar process, [s] when the groove was wider and behind the alveolar process. Noise through grooves that matched natural speech places and widths usually produced higher listener recognition scores. Exceptions were found when the subjects had unusual difficulty in achieving stipulated groove widths and places.
首先在单独发[s]音以及在CV和VC音节中发[s]音时，检查咝音沟的位置和宽度。发现一名说话者通过牙槽嵴前部附近一条6至8毫米宽的沟发出[s]音，另一名说话者则通过牙槽嵴后部附近发出[s]音。两人都通过牙槽嵴后缘后方一条10至12毫米宽的沟发出[s]音。在第二个实验中，三名受试者利用视觉发音反馈系统地改变咝音沟的宽度和位置。一名受试者只需相对较少的重试就能做到这一点；一名受试者在达到某些目标沟时遇到困难；一名受试者在达到许多目标沟时遇到困难。将产生的噪音播放给14名听众，他们将其标记为“s”、“可能是s”、“可能是sh”或“sh”。当沟较窄且靠近牙槽突前部时，他们通常将声音听为[s]；当沟较宽且在牙槽突后方时，听为[s]。通过与自然语音位置和宽度相匹配的沟产生的噪音通常会使听众获得更高的识别分数。当受试者在达到规定的沟宽度和位置时遇到异常困难时，则会出现例外情况。
