7th International Conference on Spoken Language Processing

September 16-20, 2002
Denver, Colorado, USA

Designing a Speaker-Discriminative Adaptive Filter Bank for Speaker Recognition

Tomi Kinnunen

University of Joensuu, Finland

A new filter bank approach for speaker recognition front-end is proposed. The conventional mel-scaled filter bank is replaced with a speaker-discriminative filter bank. Filter bank is selected from a library in adaptive basis, based on the broad phoneme class of the input frame. Each phoneme class is associated with its own filter bank. Each filter bank is designed in a way that emphasizes discriminative subbands that are characteristic for that phoneme. Experiments on TIMIT corpus show that the proposed method outperforms traditional MFCC features.


Full Paper

Bibliographic reference.  Kinnunen, Tomi (2002): "Designing a speaker-discriminative adaptive filter bank for speaker recognition", In ICSLP-2002, 2325-2328.