An empirical investigation of the nonuniqueness in the acoustic-to-articulatory mapping
An empirical investigation of the nonuniqueness in the acoustic-to-articulatory mapping
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声学到发音映射中非唯一性的实证研究
DOI：
10.21437/interspeech.2007-16
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发表时间：
2007
影响因子：
2.9
通讯作者：
M. A. Carreira
中科院分区：
文献类型：
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作者：
Chao Qin;M. A. Carreira
发音反转是恢复产生给定声学语音信号的声道形状序列的问题。传统上，其困难归因于逆映射的非唯一性，其中不同的声道形状可以产生相同的声学效果。然而，非唯一性的证据仅限于理论研究，或来自非典型语音或非常具体的声音的数据。我们使用威斯康星州 XRDB 的正常语音发音数据进行了一项系统性的大规模研究。我们发现某些声音确实存在非唯一性，但大多数正常语音都是以独特的声道形状产生的。
Articulatory inversion is the problem of recovering the sequence of vocal tract shapes that produce a given acoustic speech signal. Traditionally, its difficulty has been attributed to nonuniqueness of the inverse mapping, where different vocal tract shapes can produce the same acoustics. However, evidence for the nonuniqueness has been restricted to theoretical studies, or to data from atypical speech or very specific sounds. We present a systematic large-scale study using articulatory data for normal speech from the Wisconsin XRDB. We find that nonuniqueness does exist for some sounds, but that the majority of normal speech is produced with a unique vocal tract shape.
DOI：
--
发表时间：
2001
期刊：
--
影响因子：
--
作者：
M. A. Carreira-Perpiñán
通讯作者：
M. A. Carreira-Perpiñán