Perceptual dimension of openness in vowels.
Perceptual dimension of openness in vowels.
复制标题
DOI：
10.1121/1.385780
复制
发表时间：
1981-05
期刊：
影响因子：
--
通讯作者：
H. Traunmüller
中科院分区：
文献类型：
--
作者：
H. Traunmüller
研究了决定元音开放程度的内在因素的作用。为了确定 F1 和 F0 的作用，由 23 名以巴伐利亚方言为母语的受试者识别了覆盖广泛基频和共振峰频率的单共振峰元音，其中明显出现了 5 个开放度。还使用自然元音的合成版本（其中 F1 和/或 F0 在频率上系统地移位）研究了除 F1 和 F0 之外的内在因素的重要性。研究发现，一般来说，F1 和 F0 之间的音调距离对于开放度起决定性作用，而较高的共振峰贡献不大。进一步发现，间隔较宽的共振峰之间的距离（如前元音中的 F2 和 F1 之间）对于元音识别并不重要。结果根据模式匹配识别的心理声学模型进行评估。该模型包含两个基本假设。首先，无论沿基底膜的位置如何，沿基底膜的某种激发模式都被识别为给定特征。其次，存在一个宽度为 3 Bark 的积分带，对频谱包络识别有效。
The role of intrinsic factors determining perceived degree of vowel openness was examined. In order to determine the role of F1 and F0, one-formant vowels, covering a wide range of fundamental and formant frequencies, were identified by 23 subjects who were native speakers of a Bavarian dialect in which five degrees of openness occur distinctively. The significance of intrinsic factors other than F1 and F0 was also studied using synthetic versions of natural vowels with F1 and/or F0 systematically displaced in frequency. It was found that, generally, the tonality distance between F1 and F0 is decisive for openness, while the higher formants contribute marginally. It was further found that the distance between widely spaced formants, as between F2 and F1 in front vowels, is not crucial for vowel identification. The results are evaluated in terms of a psychoacoustic model of identification by pattern matching. the model incorporates two basic assumptions. First, a certain pattern of excitation along the basilar membrane is recognized as a given feature regardless of position along the membrane. Second, there is an integration band with a width of 3 Bark effective in spectrum envelope recognition.