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Convention Paper

Creation of New Virtual Patterns for Emotion Recognition through PSOLA

Authors: Mohino-Herranz, Inma; Sánchez-Hevia, Héctor A.; Gil-Pita, Roberto; Rosa-Zurera, Manuel

AES Convention 136 · Paper 9037 · April 2014

Abstract

Human emotions can be recognized through speech analysis. One main problem of this discipline is the lack of databases with a sufficient number of patterns for a correct learning. This fact makes generalization in the learning process be more difficult. One possible solution is the creation of new virtual patterns, enlarging the training set. In order to carry out this enlargement, we modify the average pitch by using the technique known as Pitch Synchronous Overlap and Add combined with resampling, that allows to change the average pitch without altering neither the pitch variations nor the speech rate. Therefore, the emotion in the utterance is unaltered. Results over the original test set show that it is possible to achieve a significant reduction in the generalization effects with the proposed creation of new virtual training patterns.

Details

Published in
AES Convention 136
AES Convention
136
Paper number
9037
Publication date
April 6, 2014
Session subject
Signal Processing
Affiliation
Universidad de Alcalá, Alcalá de Henares, Madrid, Spain (See document for exact affiliation information.)
Type
Convention Paper