Abstract:12In this paper, we present robust feature extractors that incorporate a regularized minimum variance distortionless response 13 (RMVDR) spectrum estimator instead of the discrete Fourier transform-based direct spectrum estimator, used in many front-ends 14 including the conventional MFCC, to estimate the speech power spectrum. Direct spectrum estimators, e.g., single tapered periodogram, 15 have high variance and they perform poorly under noisy and adverse conditions. To reduce this performance drop we … Show more
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