DocumentCode :
2192429
Title :
The effect of room parameters on speaker verification using reverberant speech
Author :
Shabtai, Noam R. ; Zigel, Yaniv ; Rafaely, Boaz
Author_Institution :
Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
fYear :
2008
fDate :
3-5 Dec. 2008
Firstpage :
231
Lastpage :
235
Abstract :
The performance of speaker verification (SVR) systems degrades with the presence of room reverberation. Reverberation results in mismatched conditions between target models and test segments. Reverberation time (RT) is commonly used as a room parameter that represents reverberation. We investigate the effect of other room parameters such as room dimensions and reflection coefficients of the walls on SVR. Equal error rate (EER) is calculated by using room dimensions and reflection coefficients as parameters. Results of SVR with reverberant speech of the same RT are shown to be essentially different, when other room parameters are different. Feature normalization techniques are tested with reverberant speech of the same RT, and shown to be either improving or degrading the performance of SVR when other room parameters are different. This stands in contradiction to the approach in the literature towards RT as a dominant room parameter.
Keywords :
architectural acoustics; error statistics; reverberation; speaker recognition; speech processing; equal error rate; reflection coefficients; reverberation time; room dimensions; room reverberation; speaker verification; speech reverberation; Collision mitigation; Degradation; Feature extraction; Mel frequency cepstral coefficient; Reflection; Reverberation; Speaker recognition; Speech; Statistical distributions; Testing; CMS; Speaker verification; feature normalization; reverberation; room parameters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical and Electronics Engineers in Israel, 2008. IEEEI 2008. IEEE 25th Convention of
Conference_Location :
Eilat
Print_ISBN :
978-1-4244-2481-8
Electronic_ISBN :
978-1-4244-2482-5
Type :
conf
DOI :
10.1109/EEEI.2008.4736694
Filename :
4736694
Link To Document :
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