Using neutralized formant frequencies to improve emotional speech recognition. - Davood Gharavian; Mansour Sheikhan; Farhad Ashoftedel (IEICE Electron. Express, 2011)

Using DTW neural-based MFCC warping to improve emotional speech recognition. - Mansour Sheikhan; Davood Gharavian; Farhad Ashoftedel (Neural Comput. Appl., 2012)

Emotion recognition improvement using normalized formant supplementary features by hybrid of DTW-MLP-GMM model. - Davood Gharavian; Mansour Sheikhan; Farhad Ashoftedel (Neural Comput. Appl., 2013)