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Genetic programming-based voice activity detection

Genetic programming-based voice activity detection

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A voice activity detection (VAD) algorithm is generated by using genetic programming (GP). The inputs of this VAD are the parameters extracted from the speech signals according to the ITU-T G.729B VAD standard. The GP-based VAD algorithm (GP-VAD) is evaluated using the AURORA-2 database. It is shown that the GP-VAD achieves approximately the same behaviour as the G.729B standard with a high artificial-to-intelligence ratio.

Inspec keywords: genetic algorithms; speech processing; standards; artificial intelligence

Other keywords: AURORA-2 database; voice activity detection; genetic programming; VAD algorithm; speech signal; artificial-to-intelligence ratio; parameters extraction; ITU-T G.729B VAD standard; G.729B standard; high artificial-to-intelligence ratio; GP-VAD

Subjects: Speech processing techniques; Speech and audio signal processing; Optimisation techniques; Optimisation techniques

References

    1. 1)
      • ETSI EN 301 708 recommendation, ‘Voice activity detector (VAD) for adaptive multi-rate (AMR) speech traffic channels’, 1999.
    2. 2)
      • J. Ramirez . Efficient voice activity detection algorithms using long-term speech information. Speech Commun. , 271 - 287
    3. 3)
    4. 4)
      • J.R. Koza . (2003) Genetic Programming IV. Routine human-competitive machine intelligence.
    5. 5)
      • Hirsch, H.G., Pearce, D.: `The AURORA experimental framework for the performance evaluation of speech recognition systems under noisy conditions', Proc. ISCA ITRW ASR: Automatic Speech Recognition: Challenges for the Next Millenium, 2000, Paris, France, p. 181–188.
    6. 6)
      • J.R. Koza . (1992) Genetic Programming: On the programming of computers by means of natural selection.
    7. 7)
    8. 8)
      • ETSI ES 202 050 recommendation, ‘Speech processing, transmission and quality aspects (STQ); distributed speech recognition; advanced front-end feature extraction algorithm; compression algorithms’, 2002.
    9. 9)
      • ITU-T Rec. G729, Annex B, ‘A silence compression scheme for G729 optimized for terminals conforming to ITU-T V.70’, 1996.
    10. 10)
    11. 11)
      • http://beagle.gel.ulaval.ca/index.html.
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