Author
Bozkurt, E., Erzin, E., Eroğlu Erdem, Ç., Erdem, Tanju
Publication Date
2011
Publication Place
-
Elsevier
Subject
Emotion recognition, Emotional speech classification, Spectral features
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
0092-2102
Record ID
cfeaa677-4cb5-45dc-9863-358d454b45c2
Library Location
Computer Science
Date
2011
Notes
TÜBİTAK
Sample Text
In this paper, we propose novel spectrally weighted mel-frequency cepstral coefficient (WMFCC) features for emotion recognition from speech. The idea is based on the fact that formant locations carry emotion-related information, and therefore critical spectral bands around formant locations can be emphasized during the calculation of MFCC features. The spectral weighting is derived from the normalized inverse harmonic mean function of the line spectral frequency (LSF) features, which are known to be localized around formant frequencies. The above approach can be considered as an early data fusion of spectral content and formant location information. We also investigate methods for late decision fusion of unimodal classifiers. We evaluate the proposed WMFCC features together with the standard spectral and prosody features using HMM based classifiers on the spontaneous FAU Aibo emotional speech corpus. The results show that unimodal classifiers with the WMFCC features perform significantly better than the classifiers with standard spectral features. Late decision fusion of classifiers provide further significant performance improvements.
DOI
10.1016/j.specom.2011.04.003
Cilt
53
