Proceedings of the Acoustical Society of Korea Conference (한국음향학회:학술대회논문집)

The Acoustical Society of Korea (한국음향학회)
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VOICE CONTROL SYSTEM FOR TELEVISION SET USING MASKING MODEL AS A FRONT-END OF SPEECH RECOGNIZER

  • Usagawa, Tsuyoshi (Department of Electrical Engineering and Computer Science Kumamoto University) ;
  • Iwata, Makoto (Department of Electrical Engineering and Computer Science Kumamoto University) ;
  • Ebata, Masanao (Department of Electrical Engineering and Computer Science Kumamoto University)
  • Published : 1994.06.01
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Abstract

Surrounding noise often affects the performance of speech recognition system when it is used in office or home. Especially situation is more serious when colored and nonstational noise such as an sound from television or other audio equipment is introduced. The authors proposed a voice control system for television set using an adaptive noise canceler, and it works well even is sound of television set has comparable level of speech. In this paper, a new front-end of speech recognition is introduced for the voice control system. This font-end utilizes a simplified masking model to reduce the effect of residual noise. According to experimental results, 90% correct recognition is achieved even if the level of television sound is almost 15dB higher than one of speech.

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