Craig C H, Kim B W
School of Allied Health Professions, University of Wisconsin-Milwaukee 53201.
J Speech Hear Res. 1990 Dec;33(4):808-15. doi: 10.1044/jshr.3304.808.
This study examined the effects of forward time gating and word length on monosyllabic isolated word-recognition performance. Fifty (60-ms) time-gated words were developed from a pre-recorded version (Auditec of St. Louis) of the Northwestern Auditory Test No. 6 (NU-6) List 1, Form A. A total of 358 time-gated items were presented monaurally at 80 db SPL, and time-gated word identification, isolation point, acceptance point, and listener confidence measures were obtained from 20 normally hearing listeners. A comparison of conventional nontime-gated word-recognition scores obtained using the NU-6 List 4, Form C with the time-gated measures revealed that, even upon word offset, listeners recognized time-gated words less frequently and with less confidence. The time-gated findings also demonstrated that word length, based on word duration from onset to offset, significantly influenced real-time recognition performance.
本研究考察了前向时间选通和单词长度对单音节孤立词识别性能的影响。从西北听觉测试第6号（NU - 6）列表1 A版的预录制版本（圣路易斯的Auditec）中生成了50个（60毫秒）时间选通词。总共358个时间选通项目以80分贝声压级单耳呈现，从20名听力正常的听众那里获得了时间选通词识别、分离点、接受点和听众信心测量结果。将使用NU - 6列表4 C版获得的传统非时间选通词识别分数与时间选通测量结果进行比较后发现，即使在单词结束时，听众识别时间选通词的频率也更低，信心也更小。时间选通研究结果还表明，基于从开始到结束的单词持续时间的单词长度显著影响实时识别性能。
