Enhancement of performance parameters of speech signal using model order reduction approach

Authors:
Mohammad Arif;R. S. Anand
Affiliations:
Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee, India 247667;Department of Electrical Engineering, Indian Institute of Technology Roorkee, Roorkee, India 247667
Venue:
International Journal of Speech Technology
Year:
2011

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Abstract

In this paper, a model order reduction approach is used with the aim to enhance the performance parameters of the speech signal. Initially, this model reduction technique is applied on the original higher order system for the reduction of the order of system while keeping all the features of the original one in it. The performance parameters such as SNR, NRMSE and SD for the reduced order system have been improved compared to the same performance parameters with original higher order one. Finally, the comparisons of these performance parameters are made to show to enhance the performance of reduced order system irrespective of the order and values of state space parameters.