Emotional state and its impact on voice authentication accuracy

Miroslav Voznak; Pavol Partila; Marek Penhaker; Tomas Peterek; Karel Tomala; Filip Rezac; Jakub Safarik

doi:10.1117/12.2015719

29 May 2013 Emotional state and its impact on voice authentication accuracy

Miroslav Voznak, Pavol Partila, Marek Penhaker, Tomas Peterek, Karel Tomala, Filip Rezac, Jakub Safarik

Proceedings Volume 8750, Independent Component Analyses, Compressive Sampling, Wavelets, Neural Net, Biosystems, and Nanoengineering XI; 875006 (2013) https://doi.org/10.1117/12.2015719
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

The paper deals with the increasing accuracy of voice authentication methods. The developed algorithm first extracts segmental parameters, such as Zero Crossing Rate, the Fundamental Frequency and Mel-frequency cepstral coefficients from voice. Based on these parameters, the neural network classifier detects the speaker's emotional state. These parameters shape the distribution of neurons in Kohonen maps, forming clusters of neurons on the map characterizing a particular emotional state. Using regression analysis, we can calculate the function of the parameters of individual emotional states. This relationship increases voice authentication accuracy and prevents unjust rejection.

Citation Download Citation

Miroslav Voznak, Pavol Partila, Marek Penhaker, Tomas Peterek, Karel Tomala, Filip Rezac, and Jakub Safarik "Emotional state and its impact on voice authentication accuracy", Proc. SPIE 8750, Independent Component Analyses, Compressive Sampling, Wavelets, Neural Net, Biosystems, and Nanoengineering XI, 875006 (29 May 2013); https://doi.org/10.1117/12.2015719

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