STUDIES OF VOWEL PERCEPTION

这项提案的目标是更完整地说明 用于识别美国人所说音节中的元音的信息 英语(AE)。最近的研究有力地支持了这样的观点 监听器使用动态(时变)信息 识别元音的整个音节。这项研究将调查 轨迹和知觉信息部分之间的相互关系 音节，使用自然语音的电子修改技术 刺激物。修改的刺激是通过改变、删除和 重新排列部分数字化的语音音节波形。这个 这些来源的不同组合的知觉相关性 信息可以从知觉错误模式中推断出来 未受过训练的听者辨认出想要的元音。 修饰包括以下刺激：1)部分音节 原来包含不同声母和韵母的是 重组，2)原始包含不同元音的音节部分 是重新组合的，最后是由 不同的扬声器被重新组合。 与这些感知研究相结合，密集的声学分析 将追寻原始的刺激材料。通过比较声学上的 原始音节和电子修改音节的配置 它们保留和不保留元音标识，关系参数 支持元音的知觉可以派生出来。

This proposal has as its goal a more complete specification of the information that serves to identify vowels in spoken syllables of American English (AE). Recent research has given strong support to the view that listeners use dynamic (time-varying) information available throughout the entire syllable to identify vowels. This research will investigate the locus and the interrelations of perceptually informative portions of the syllable, using the technique of electronic modification of natural speech stimuli. Modified stimuli are generated by altering, deleting and rearranging portions of the digitized waveforms of spoken syllables. The perceptual relevance of different combinations of these sources of information may be inferred from the perceptual error patterns in identification of the intended vowels by untrained listeners. Modifications include stimuli in which: 1) portions of syllables originally containing different initial and final consonants are recombined, 2) portions of syllables originally containing different vowels are recombined, and, finally, 3) portions of syllables produced by different speakers are recombined. In conjunction with these perceptual studies intensive acoustic analysis of the original stimulus materials will be pursued. By comparing the acoustic configurations of original syllables and electronically modified syllables which do and do not preserve vowel identity, the relational parameters that support vowel perception can be derived.