Speaker Verification System Using Extended Sequential Probability Ratio Test in PDA

Authors:
Changwoo Seo;Keunho Sim;Eunyoung Kim;Heeae Ko;Younghwan Lim
Affiliations:
The School of Global Media, Soongsil University, Seoul, Korea 156743;The School of Global Media, Soongsil University, Seoul, Korea 156743;The School of Global Media, Soongsil University, Seoul, Korea 156743;The School of Global Media, Soongsil University, Seoul, Korea 156743;The School of Global Media, Soongsil University, Seoul, Korea 156743
Venue:
FMN '09 Proceedings of the 2nd International Workshop on Future Multimedia Networking
Year:
2009

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HAIS'10 Proceedings of the 5th international conference on Hybrid Artificial Intelligence Systems - Volume Part I

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Abstract

We propose a speaker-verification (SV) system to protect personal information stored on personal digital assistant (PDA) devices. PDAs have recently increased in capability and have increased in popularity, especially among highly mobile consumers. However, there still exist numerous obstacles to the practical use of SV with PDA devices because SV requires high computational complexity. To solve this problem, we propose a method to improve SV performance by applying the extended sequential probability ratio test (ESPRT) to the decision logic threshold. The proposed system is compatible with a PDA device's limited memory and low CPU speed.