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Speech emotion recognition using FCBF feature selection method and GA-optimized fuzzy ARTMAP neural network

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Abstract

Emotion recognition from speech has noticeable applications in the speech-processing systems. In this paper, the effect of using a rich set of features including formant frequency related, pitch frequency related, energy, and the two first mel-frequency cepstral coefficients (MFCCs) on improving the performance of speech emotion recognition systems is investigated. To do this, the different sets of features are employed, and by using the fast correlation-based filter (FCBF) feature selection method, some efficient feature subsets are determined. Finally, to recognize the emotion from speech, fuzzy ARTMAP neural network (FAMNN) architecture is used. Also, the genetic algorithm (GA) is employed to determine optimum values of the choice parameter (α), the vigilance parameters (ρ a, ρ b, and ρ ab), and the learning rate (β) of FAMNN. Experimental results show the improvement in emotion recognition rate of angry, happiness, and neutral states by using a subset of 25 selected features and the GA-optimized FAMNN-based emotion recognizer.

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Acknowledgment

This work is supported by Islamic Azad University-South Tehran Branch under a research project entitled as "Emotion Modelling to Improve Speech Recognition Accuracy in Farsi Language".

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Authors and Affiliations

  1. EE Department, Islamic Azad University, South Tehran Branch, Tehran, Iran

    Davood Gharavian, Mansour Sheikhan, Alireza Nazerieh & Sahar Garoucy

  2. EE Department, Shahid Abbaspour University, Tehran, Iran

    Davood Gharavian

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  1. Davood Gharavian
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Correspondence to Davood Gharavian.

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Gharavian, D., Sheikhan, M., Nazerieh, A. et al. Speech emotion recognition using FCBF feature selection method and GA-optimized fuzzy ARTMAP neural network. Neural Comput & Applic 21, 2115–2126 (2012). https://doi.org/10.1007/s00521-011-0643-1

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