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• W2148091317 abstract "Most speaker recognition systems rely on short-term acoustic cepstral features for extracting the speaker-relevant information from the signal. But phonetic discriminant features, extracted by a bottle-neck multi-layer perceptron (MLP) on longer stretches of time, can provide a complementary information and have been adopted in speech transcription systems. We compare the speaker verification performance using cepstral features, discriminant features, and a concatenation of both followed by a dimension reduction. We consider two speaker recognition systems, one based on maximum likelihood linear regression (MLLR) super-vectors and the other on a state-of-the-art i-vector system with two session variability compensation schemes. Experiments are reported on a standard configuration of NIST SRE 2008 and 2010 databases. The results show that the phonetically discriminative MLP features retain speaker-specific information which is complementary to the short-term cepstral features. The performance improvement is obtained with both score domain and feature domain fusion and the speaker verification equal error rate (EER) is reduced up to 50% relative, compared to the best i-vector system using only cepstral features." @default.
• W2148091317 created "2016-06-24" @default.
• W2148091317 date "2014-09-01" @default.
• W2148091317 modified "2023-09-24" @default.
• W2148091317 title "Combination of Cepstral and Phonetically Discriminative Features for Speaker Verification" @default.
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• W2148091317 doi "https://doi.org/10.1109/lsp.2014.2323432" @default.
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