Title
Robust speaker verification with a two classifier format and feature enhancement
Document Type
Conference Paper
Version Deposited
None (link only)
Publication Date
May 2017
Conference Name
2017 IEEE International Symposium on Circuits and Systems
DOI
10.1109/ISCAS.2017.8050775
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.
Recommended Citation
Edwards, Joshua; Ramachandran, Ravi; and Thayasivam, Umashanger, "Robust speaker verification with a two classifier format and feature enhancement" (2017). Henry M. Rowan College of Engineering Faculty Scholarship. 26.
https://rdw.rowan.edu/engineering_facpub/26
