Speaker verification based on G.729 and G.723.1 coder parameters and handset mismatch compensation

Eric W.M. Yu, Man Wai Mak, Chin Hung Sit, Sun Yuan Kung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

8 Citations (Scopus)


A novel technique for speaker verification over a communication network is proposed. The technique employs cepstral coefficients (LPCCs) derived from G.729 and G.723.1 coder parameters as feature vectors. Based on the LP coefficients derived from the coder parameters, LP residuals are reconstructed, and the verification performance is improved by taking account of the additional speaker-dependent information contained in the reconstructed residuals. This is achieved by adding the LPCCs of the LP residuals to the LPCCs derived from the coder parameters. To reduce the acoustic mismatch between different handsets, a technique combining a handset selector with stochastic feature transformation is employed. Experimental results based on 150 speakers show that the proposed technique outperforms the approaches that only utilize the coder-derived LPCCs.
Original languageEnglish
Title of host publicationEUROSPEECH 2003 - 8th European Conference on Speech Communication and Technology
PublisherInternational Speech Communication Association
Number of pages4
Publication statusPublished - 1 Jan 2003
Event8th European Conference on Speech Communication and Technology, EUROSPEECH 2003 - Geneva, Switzerland
Duration: 1 Sep 20034 Sep 2003


Conference8th European Conference on Speech Communication and Technology, EUROSPEECH 2003

ASJC Scopus subject areas

  • Computer Science Applications
  • Software
  • Linguistics and Language
  • Communication

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