A Hybrid Speech Emotion Recognition System Based on Spectral and Prosodic Features
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- ZHOU Yu
- Institute of Acoustics, Chinese Academy of Sciences
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- LI Junfeng
- School of Information Science, Japan Advanced Institute of Science and Technology
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- SUN Yanqing
- Institute of Acoustics, Chinese Academy of Sciences
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- ZHANG Jianping
- Institute of Acoustics, Chinese Academy of Sciences
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- YAN Yonghong
- Institute of Acoustics, Chinese Academy of Sciences
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- AKAGI Masato
- School of Information Science, Japan Advanced Institute of Science and Technology
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抄録
In this paper, we present a hybrid speech emotion recognition system exploiting both spectral and prosodic features in speech. For capturing the emotional information in the spectral domain, we propose a new spectral feature extraction method by applying a novel non-uniform subband processing, instead of the mel-frequency subbands used in Mel-Frequency Cepstral Coefficients (MFCC). For prosodic features, a set of features that are closely correlated with speech emotional states are selected. In the proposed hybrid emotion recognition system, due to the inherently different characteristics of these two kinds of features (e.g., data size), the newly extracted spectral features are modeled by Gaussian Mixture Model (GMM) and the selected prosodic features are modeled by Support Vector Machine (SVM). The final result of the proposed emotion recognition system is obtained by combining the results from these two subsystems. Experimental results show that (1) the proposed non-uniform spectral features are more effective than the traditional MFCC features for emotion recognition; (2) the proposed hybrid emotion recognition system using both spectral and prosodic features yields the relative recognition error reduction rate of 17.0% over the traditional recognition systems using only the spectral features, and 62.3% over those using only the prosodic features.
収録刊行物
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- IEICE Transactions on Information and Systems
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IEICE Transactions on Information and Systems E93-D (10), 2813-2821, 2010
一般社団法人 電子情報通信学会
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詳細情報 詳細情報について
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- CRID
- 1390001204379551488
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- NII論文ID
- 10027641285
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- NII書誌ID
- AA10826272
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- ISSN
- 17451361
- 09168532
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- Crossref
- CiNii Articles
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- 使用不可