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Application of combined temporal and spectral processing methods for speaker recognition under noisy, reverberant or multi-speaker environments

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Abstract

This paper presents an experimental evaluation of the combined temporal and spectral processing methods for speaker recognition task under noise, reverberation or multi-speaker environments. Automatic speaker recognition system gives good performance in controlled environments. Speech recorded in real environments by distant microphones is degraded by factors like background noise, reverberation and interfering speakers. This degradation strongly affects the performance of the speaker recognition system. Combined temporal and spectral processing (TSP) methods proposed in our earlier study are used for pre-processing to improve the speaker-specific features and hence the speaker recognition performance. Different types of degradation like background noise, reverberation and interfering speaker are considered for evaluation. The evaluation is carried out for the individual temporal processing, spectral processing and the combined TSP method. The experimental results show that the combined TSP methods give relatively higher recognition performance compared to either temporal or spectral processing alone.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Indian Institute of Technology Guwahati, Guwahati, 781 039, India

    P. Krishnamoorthy & S. R. Mahadeva Prasanna

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  1. P. Krishnamoorthy
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  2. S. R. Mahadeva Prasanna
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Correspondence to P. Krishnamoorthy.

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Krishnamoorthy, P., Mahadeva Prasanna, S.R. Application of combined temporal and spectral processing methods for speaker recognition under noisy, reverberant or multi-speaker environments. Sadhana 34, 729–754 (2009). https://doi.org/10.1007/s12046-009-0043-8

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