International Symposium on Chinese Spoken Language Processing (ISCSLP 2002)

Taipei, Taiwan
August 23-24, 2002

Enhancing the Stability of Speaker Verification with Compressed Templates

Xue Wen, Runsheng Liu

Tsinghua University, Beijing, China

Time-domain template compression is an effective means to reduce storage and computation complexity of speaker verification systems based on template matching. Yet this compression may cause severe performance deterioration. In this paper we propose a frame-level verification method to cut down this deterioration. A frame discrimination procedure is then introduced to further improve the verification performance. These methods add only a little to the computation and storage load, yet effectively enhance the verification stability against template compression. With these improvements, we have cut down the deterioration by more than 2/3, and have gained a verification EER of 2.35% with templates compressed at an 8:1 rate.


Full Paper

Bibliographic reference.  Wen, Xue / Liu, Runsheng (2002): "Enhancing the stability of speaker verification with compressed templates", In ISCSLP 2002, paper 14.