Abstract
In the previous chapter, we introduced a robust auditory transform (AT). In this chapter, we present an auditory-based feature extraction algorithm based on the AT and apply it to robust speaker identification. Usually, the performances of acoustic models trained in clean speech drop significantly when tested in noisy speech. The presented features, however, have shown strong robustness in this kind of situation. We present a typical text-independent speaker identification system in the experiment section. Under all three different mismatched testing conditions, with white noise, car noise, or babble noise, the auditory features consistently perform better than the baseline mel frequency cepstral coefficient (FMCC) features. The auditory features are also compared with perceptual linear predictive (PLP) and RASTA-PLP features, The features consistently perform much better than PLP. Under white noise, the FMCC features are much better than RASTA-PLP. Under car and babble noises, the performace are similar.
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References
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Li, Q.(. (2012). Auditory-Based Feature Extraction and Robust Speaker Identification. In: Speaker Authentication. Signals and Communication Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23731-7_8
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DOI: https://doi.org/10.1007/978-3-642-23731-7_8
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