Temporal Integration of Acoustic Detail in Speech

语音中声学细节的时间整合

• 批准号: 6740362
• 负责人: Bob McMurray
• 金额: $ 2.54万
• 依托单位: UNIVERSITY OF ROCHESTER
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-31 至 2004-08-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6740362
• 关键词: behavioral /social science research tag; clinical research; human subject; language development; phonology; predoctoral investigator; speech recognition; university student

DESCRIPTION (provided by applicant): Recent research from our lab and others has challenged the traditional notion that the goal of the speech perception system is to discard unnecessary variability in the signal in favor of discrete lexical or sub lexical units. Rather, it appears that the perceptual system is sensitive to this information and is able to retain it long enough for it to be of use in resolving temporal ambiguities and predicting upcoming phonetic material. This proposal will extend these basic results by examining the phonetic environments in which the perceptual system is sensitive to fine-grained detail and the consequences of this sensitivity for lexical neighborhoods. It will further extend these findings by examining situations in which knowledge of this acoustic detail may predict upcoming phonemes or words using knowledge of phonological assimilation, and also help resolve prior ambiguities created by speaking rate, lexical status, and sentential meaning.

描述（由申请人提供）：我们实验室和其他人的最新研究挑战了传统观念，即语音感知系统的目标是放弃信号中不必要的可变性，转而采用离散词汇或子词汇单位。相反，感知系统似乎对这些信息很敏感，并且能够将其保留足够长的时间，以便可用于解决时间歧义和预测即将出现的语音材料。该提案将通过检查感知系统对细粒度细节敏感的语音环境以及这种敏感性对词汇邻域的影响来扩展这些基本结果。它将通过检查这种声学细节的知识可以使用语音同化知识预测即将出现的音素或单词的情况来进一步扩展这些发现，并且还有助于解决由语速、词汇状态和句子含义造成的先前歧义。