Previous work in wireless speech recognition has focused on two methods, namely, quantizing recognition features (e.g. MFCC) or performing recognition using speech coding parameters (e.g. LPC). All of this previous research assumes that the communication channel is only large enough to transmit either speech coding parameters or speech recognition parameters. By contrast, we propose that the speech recognition parameters can be quantized at a rate sufficiently low to allow transmission of both speech coding and speech recognition parameters over a standard cellular channel. In particular, this paper shows that the perceptual LPC (PLP) coefficients can be transmitted at 400 bps with an insignificant loss of digit recognition accuracy.

Original languageEnglish (US)
Pages (from-to)77-80
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
StatePublished - 2001
Event2001 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing - Salt Lake, UT, United States
Duration: May 7 2001May 11 2001

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering


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