Presentation
Robust speaker verification with a two classifier format and feature enhancement
2017 IEEE International Symposium on Circuits and Systems
(2017)
Abstract
In the presence of environmental noise, speaker verification systems inevitably see a decrease in performance. This paper proposes the (1) use of two parallel classifiers, (2) feature enhancement based on blind signal-to-noise ratio (SNR) estimation and (3) fusion, to improve the performance of speaker verification systems. The two classifiers are based on Gaussian mixture models and the partial least-squares technique. Speech corrupted by additive noise at SNRs from 0 to 30 dB are used for authentication. A two-way analysis of variance validates the performance gain offered by the methods used. The outputs of the classifiers are fused together in different ways. The fusion method where the scores of the classifiers are added together is found to be the best method again using statistical analysis.
Disciplines
Publication Date
May 28, 2017
Location
Baltimore, Maryland
DOI
10.1109/ISCAS.2017.8050775
Citation Information
Joshua S. Edwards, Ravi P. Ramachandran and Umashanger Thayasivam. "Robust speaker verification with a two classifier format and feature enhancement" 2017 IEEE International Symposium on Circuits and Systems (2017) Available at: http://works.bepress.com/umashanger-thayasivam/7/