VOWEL PERCEPTION

这项研究的总体目标是规范 使用的动态(时变)声学信息 听者在他们的正常上下文中识别元音，即当 在连续语音中，它们与辅音协同发音。这个 研究谈到了一个非常广泛的问题，即继续 言语和听力研究的重要性：什么声学 听众使用语音信号中的信息来识别 《语音留言？》传统理论与诸多现代 元音感知模型强调静态声学的作用 “目标”作为元音身份信息的主要来源。 然而，目前的许多研究表明，听众依赖于 批判性地关注变化中可用的动态信息 当他们尝试时音节的声学模式(格式轨迹) 来识别协同发音的元音。 将进行四种类型的研究：1)知觉研究 经过电子修改的自然语音材料将被 调查了不同文化背景下人们对元音的认知 语音上下文和不同的语速。2)替代方案 格式轨迹的听觉-知觉表示将是 研究以检查它们在解释 对协同发音的元音的感知。3)格式化轨迹 合成辅音-元音-辅音音节将是 被操纵来测试关于知觉的替代假设 表征光谱和时间参数的关联性 “变革的风格”。4)协同发音的知觉研究 德语元音(由母语和非母语人士组成)将为 进行以评估语言之间的通用性 关于动态声学信息在运动中的作用的研究结果 对元音的感知。

The overall objective of this research is the specification of the dynamic (time-varying) acoustic information that is used by listeners to identify vowels in their normal context, that is, when they are coarticulated with consonants in continuous speech. The research speaks to a very broad questions of continuing importance in speech and hearing research: What acoustic information in the speech signal is used by listeners to identify the phonetic message?" Traditional theories and many current models of vowel perception emphasize the role of static acoustic "targets" as the major source of information about vowel identity. However, much current research has shown that listeners rely critically on dynamic information that is available in the changing acoustic pattern of syllables (format trajectories) when they try to identify coarticulated vowels. Four types of studies will be performed: 1) Perceptual studies with electronically-modified natural speech materials will be conducted to investigate the perception of vowels in different phonetic contexts and at different speech rates. 2) Alternative auditory-perceptual representations of format trajectories will be studied to examine their relative efficacy in accounting for the perception of coarticulated vowels. 3) Format trajectories in synthetic consonant-vowel-consonant syllables will be manipulated to test alternative hypotheses about the perceptual relevane of spectral and temporal parameters characterizing "style of change". 4) Studies of the perception of coarticulated German vowels (by native and non-native speakers) will be conducted to assess the generality across languages of the findings about the role of dynamic acoustic information in the perception of vowels.