Emotion recognition from audio signals using Support Vector Machine

M S Sinith · E. Aswathi · Thangarasu Deepa · C. P. Shameema

60 citations0/0 files storedIEEE Recent Advances in Intelligent Computational Systems

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Emotion and Mood Recognition Speech Recognition and Synthesis Speech and Audio Processing

Abstract

The purpose of speech emotion recognition system is to differentiate the speaker's utterances into four emotional states namely happy, sad, anger and neutral. Automatic speech emotion recognition is an active research area in the field of human computer interaction (HCI) with wide range of applications. Extracted features of our project work are mainly related to statistics of pitch and energy as well as spectral features. Selected features are fed as input to Support Vector Machine (SVM) classifier. Two kernels linear and Gaussian radial basis function are tested with binary tree, one against one and one versus the rest classification strategies. The proposed speaker-independent experimental protocol is tested on the Berlin emotional speech database for each gender separately and combining both, SAVEE database as well as with a self made database in Malayalam language containing samples of female only. Finally results for different combination of the features and on different databases are compared and explained. The highest accuracy is obtained with the feature combination of MFCC +Pitch+ Energy on both Malayalam emotional database (95.83%) and Berlin emotional database (75%) tested with binary tree using linear kernel.

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References

2001Emotion recognition in human-computer interaction 2010Survey on speech emotion recognition: Features, classification schemes, and databases 2003Hidden Markov model-based speech emotion recognition 2004Speech emotion recognition combining acoustic features and linguistic information in a hybrid support vector machine-belief network architecture 2003Hidden Markov model-based speech emotion recognition 2012Speech Emotion Recognition Using Support Vector Machine 2010Speech Emotion Recognition using Support Vector Machine

Cited by

2024Speech Databases, Speech Features, and Classifiers in Speech Emotion Recognition: A Review 2022Shoelace pattern-based speech emotion recognition of the lecturers in distance education: ShoePat23 2024Deep Learning-Based Automated Emotion Recognition Using Multimodal Physiological Signals and Time-Frequency Methods

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