Acoustic Structure of Speech: Hyper & Hypo Patterns

语音的声学结构：Hyper

• 批准号: 9011894
• 负责人: Bjorn Lindblom
• 金额: $ 41万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-02-01 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9011894&HistoricalAwards=false
• 关键词: Acoustic; Structure; Speech; Hyper; &amp

ABSTRACT The aim of the project is to collect descriptive quantitative data on the acoustic characteristics of American English vowels and consonants. The speech materials selected will be suitable for studying vowel reduction and vowel-dependent consonant coarticulation. The phonetic segments to be analyzed will come from three operationally defined styles of speech providing samples that range from strongly context-dependent (reduced, coarticulated) forms to neutral and less context-dependent ("clearly" spoken) tokens. The goal is to be able to specify how the acoustic parameters change across such forms, to evaluate the perceptual significance of the changes and to propose numerical models describing and predicting the observed patterns of variation. Key questions are: Do speakers change their speech when they try to "speak more clearly", that is when they adapt to listener needs? If so, what acoustic modifications do they invoke to disambiguate reduced, coarticulated and perceptually similar forms? What is the nature of the acoustic transforms that are communicatively successful? The project will take steps towards discovering the systematic structure of intra-speaker phonetic variation and should thus produce results relevant to attempts to resolve the invariance issue (Perkell & Klatt 1986), a classical topic for general theories of spoken language and one of the unresolved problems still facing the design of automatic systems for text-to-speech conversion and speech recognition/understanding.

摘要 该项目的目的是收集描述性的定量数据， 美国英语元音声学特征数据 和辅音。 所选的演讲材料将是合适的 用于研究元音缩减和元音依赖辅音 协同发音 要分析的语音片段就会出现 从三种可操作定义的演讲风格， 范围从强上下文相关（减少， 共同发音）形式到中性和较少的上下文依赖 ”（《明史》卷100） 目标是能够指定如何 声学参数在这些形式之间变化，以评估 变化的感知意义，并提出数值 模型描述和预测观察到的模式， 变化量 关键问题是：演讲者会改变他们的演讲吗？ 当他们试图“说得更清楚”时，那就是他们适应的时候。 听众需要？ 如果是的话，他们做了什么声学修改 调用以消除歧义减少，共同表达和感知 类似的形式？ 声学变换的本质是什么 在沟通上取得了成功 该项目将采取措施 发现说话者内部的系统结构 语音变化，因此应该产生相关的结果， 试图解决不变性问题（Perkell Klatt 1986）， 一个口语一般理论的经典话题， 自动化设计仍面临未解决的问题 用于文本到语音转换和语音的系统 认识/理解。