
FOLLOWUS
1.State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
2.University of Chinese Academy of Sciences, Beijing 100190, China
3.National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
[ "Junhong ZHAO, E-mail: junhong.iecas@gmail.com" ]
收稿:2013-04-22,
修回:2013-10-15,
纸质出版:2013-11
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Exploiting articulatory features for pitch accent detection[J]. 信息与电子工程前沿(英文), 2013,14(11):835-844.
Junhong ZHAO, Ji XU, Wei-qiang ZHANG, et al. Exploiting articulatory features for pitch accent detection[J]. Frontiers of Information Technology & Electronic Engineering, 2013, 14(11): 835-844.
Exploiting articulatory features for pitch accent detection[J]. 信息与电子工程前沿(英文), 2013,14(11):835-844. DOI: 10.1631/jzus.C1300104.
Junhong ZHAO, Ji XU, Wei-qiang ZHANG, et al. Exploiting articulatory features for pitch accent detection[J]. Frontiers of Information Technology & Electronic Engineering, 2013, 14(11): 835-844. DOI: 10.1631/jzus.C1300104.
Articulatory features describe how articulators are involved in making sounds. Speakers often use a more exaggerated way to pronounce accented phonemes
so articulatory features can be helpful in pitch accent detection. Instead of using the actual articulatory features obtained by direct measurement of articulators
we use the posterior probabilities produced by multi-layer perceptrons (MLPs) as articulatory features. The inputs of MLPs are frame-level acoustic features pre-processed using the split temporal context-2 (STC-2) approach. The outputs are the posterior probabilities of a set of articulatory attributes. These posterior probabilities are averaged piecewise within the range of syllables and eventually act as syllable-level articulatory features. This work is the first to introduce articulatory features into pitch accent detection. Using the articulatory features extracted in this way
together with other traditional acoustic features
can improve the accuracy of pitch accent detection by about 2%.
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