Abstract
This paper investigates the effectiveness of integrating complementary acoustic features for improved speaker identification performance. The complementary contributions of two acoustic features, i.e. the conventional vocal tract related features MFCC and the recently proposed vocal source related features WOCOR, for speaker identification are studied. An integrating system, which performs a score level fusion of MFCC and WOCOR with a confidence measure as the weighting parameter, is proposed to take full advantage of the complementarity between the two features. The confidence measure is derived based on the speaker discrimination powers of MFCC and WOCOR in each individual identification trial so as to give more weight to the one with higher confidence in speaker discrimination. Experiments show that information fusion with such a confidence measure based varying weight outperforms that with a pre-trained fixed weight in speaker identification.
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Zheng, N., Ching, P.C., Wang, N., Lee, T. (2006). Integrating Complementary Features with a Confidence Measure for Speaker Identification. In: Huo, Q., Ma, B., Chng, ES., Li, H. (eds) Chinese Spoken Language Processing. ISCSLP 2006. Lecture Notes in Computer Science(), vol 4274. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11939993_57
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DOI: https://doi.org/10.1007/11939993_57
Publisher Name: Springer, Berlin, Heidelberg
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