Abstract
In this paper, hum of a person (instead of normal speech) is used to design a voice biometric system for person recognition. In addition, a recently proposed static feature set, viz., Variable length Teager energy based Mel Frequency Cepstral Coefficients (VTMFCC), is found to capture source-like information of a hum signal. Effectiveness of VTMFCC over linear prediction (LP) residual to capture the complementary information than MFCC is demonstrated in a hum signal. Person recognition performance is found to be better when a score-level fusion is used by combining evidences from static and dynamic features for MFCC (system) and VTMFCC (source-like) features than MFCC alone. Experiments are validated on two types of dynamic features, viz., delta cepstrum and shifted delta cepstrum. In addition, for score-level fusion using static and dynamic features % identification rate and % Equal Error Rate are observed to outperform by 7.9 % and 0.27 %, respectively than MFCC alone. Furthermore, we have observed that person recognition system gives better performance for larger frame duration 69.6 ms as opposed to traditional 10–30 ms frame duration.
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Patil, H.A., Madhavi, M.C. & Parhi, K.K. Static and dynamic information derived from source and system features for person recognition from humming. Int J Speech Technol 15, 393–406 (2012). https://doi.org/10.1007/s10772-012-9161-5
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DOI: https://doi.org/10.1007/s10772-012-9161-5