|Author:||Hung, Wai Fung|
|Title:||Multitask deep learning for recognizing gender and emotion from speech signals|
|Advisors:||Mak, M. W. (EIE)|
|Subject:||Automatic speech recognition|
Emotions -- Identification
Sex -- Identification
Hong Kong Polytechnic University -- Dissertations
|Department:||Department of Electronic and Information Engineering|
|Pages:||iv, 52 pages : color illustrations|
|Abstract:||Speech Emotion Recognition is to extract suitable features that characterize different emotions efficiently and to identify the emotional states of speakers. It has been a hot topic in recent years. Applying deep neural networks (DNNs) to recognize human emotions is a new direction in increasing the accuracy of speech emotion recognition. In many areas, multi-task deep learning performs better than single-task deep learning. Multitask learning can improve the performance of DNNs by training a network on several related tasks simultaneously. This dissertation aims to apply to multitask deep learning to speech emotion recognition. In this work, emotion features according to IS09 and IS11 of the OpenSMILE software were used to capture the emotion characteristics in speech signals. This work uses two databases called EMODB and IEMOCAP. EMODB is an emotional speech database comprising utterances with seven emotional states. The full name of IEMOCAP is interactive emotional dyadic motion capture databases. It contains utterances with four emotional states. Experiments have been conducted to evaluate the effectiveness of multitask deep learning. Results show that the accuracy of IS09-Emotion is above 74% and the accuracy of IS11-Speaker-State is above 80% using EMODB. That testing accuracy of IS09-Emotion is above 56% and that accuracy of IS11-Speaker-State is above 57% using IEMOCAP. Besides, the accuracy of gender identification is above 88% in all cases. Results show that the performance of the multi-task DNNs is better than the performance of the single-task DNNs.|
|Rights:||All rights reserved|
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