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Sökning: WFRF:(Zhang Xueying) > Konferensbidrag

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1.
  • Huang, Lixia, et al. (författare)
  • Speaker independent recognition on OLLO French corpus by using different features
  • 2010
  • Ingår i: Pervasive Computing, Signal Processing and Applications (PCSPA 2010). - : IEEE. - 9781424480432 ; , s. 332-335
  • Konferensbidrag (refereegranskat)abstract
    • The Oldenburg LOgatome speech corpus (OLLO) is specifically designed for evaluating speech recognition methods on variability. The performance of features carried on intrinsic variabilities in speech is meaningful for automatic speech recognition (ASR) system. ZCPA and MFCC were the two main features applied to OLLO French corpus in this paper. We took cepstral mean subtraction (CMS) on MFCC. Dynamic transforms (delta-delta-ZCPA and delta-delta-MFCC) were also adopted. The experiments show that the MFCC outperform the ZCPA in separate style. But ZCPA is more robust between different variabilities. The delta-delta operation of MFCC achieves best recognition in noise-free environment. Moreover, ZCPA could be complementary to MFCC so that one can combine them together especially on soft speaking style.
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2.
  • Zhang, Xueying, et al. (författare)
  • Warped Filter Banks Used in Noisy Speech Recognition
  • 2009
  • Ingår i: Proc. IV Int. Conf. Innovative Computing, Information and Control (ICICIC-2009). ; , s. 1385-1388
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • The filter bank in the front-end of a speech recognition system mimics the function of the basilar membrane. It is believed that the closer the band subdivision is to human perception, the better the recognition results. This paper proposes the use of Warped Filter Banks (WFBs) to replace traditional FIR filter banks and validates its use for the recognition of noisy speech. The WFBs bandwidths can be warped by using a first-order allpass transformation replacing the unit delay. Different warped factors in the allpass function can make the different scaled filter banks. Experiments carried on isolated words for speaker independent speech recognition show that the recognition rate with our proposed WFBs has been effectively increased.     
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  • Resultat 1-2 av 2
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övrigt vetenskapligt/konstnärligt (1)
refereegranskat (1)
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Zhang, Xueying (2)
Huang, Lixia (2)
Evangelista, Gianpao ... (1)
Evangelista, Gianpao ... (1)
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