Evaluating deep learning architectures for Speech Emotion Recognition.

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Neural networks : the official journal of the International Neural Network Society, ISSN: 1879-2782, Vol: 92, Page: 60-68

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Fayek, Haytham M; Lech, Margaret; Cavedon, Lawrence
Elsevier BV
Neuroscience; Computer Science
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article description
Speech Emotion Recognition (SER) can be regarded as a static or dynamic classification problem, which makes SER an excellent test bed for investigating and comparing various deep learning architectures. We describe a frame-based formulation to SER that relies on minimal speech processing and end-to-end deep learning to model intra-utterance dynamics. We use the proposed SER system to empirically explore feed-forward and recurrent neural network architectures and their variants. Experiments conducted illuminate the advantages and limitations of these architectures in paralinguistic speech recognition and emotion recognition in particular. As a result of our exploration, we report state-of-the-art results on the IEMOCAP database for speaker-independent SER and present quantitative and qualitative assessments of the models' performances.