Noise invariant frame selection: a simple method to address the background noise problem for text-independent speaker verificationTools Song, Siyang, Shuimei, Zhang, Schuller, Björn, Shen, Linlin and Valstar, Michel F. (2018) Noise invariant frame selection: a simple method to address the background noise problem for text-independent speaker verification. In: International Joint Conference on Neural Networks 2018, 8-13 July 2018, Rio de Janeiro, Brazil. (In Press) Full text not available from this repository.AbstractThe performance of speaker-related systems usually degrades heavily in practical applications largely due to the background noise. To improve the robustness of such systems in unknown noisy environments, this paper proposes a simple pre-processing method called Noise Invariant Frame Selection (NIFS). Based on several noisy constraints, it selects noise invariant frames from utterances to represent speakers. Experiments conducted on the TIMIT database showed that the NIFS can significantly improve the performance of Vector Quantization (VQ), Gaussian Mixture Model-Universal Background Model (GMM-UBM) and i-vector-based speaker verification systems in different unknown noisy environments with different SNRs, in comparison to their baselines. Meanwhile, the proposed NIFS-based speaker systems has achieves similar performance when we change the constraints (hyper-parameters) or features, which indicates that it is easy to reproduce. Since NIFS is designed as a general algorithm, it could be further applied to other similar tasks.
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