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

The Acoustical Society of Korea (한국음향학회)
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An Implementation of Realtime Pitch Analyzer Using MatLab

MatLab를 이용한 실시간 피치분석기 구현

  • Park Il-Seo (Dept. of Control & Instrumentation Eng., Changwon National University) ;
  • An Hye-Young (Dept. of Control & Instrumentation Eng., Changwon National University) ;
  • Kim Dae-Hyun (Dept. of Control & Instrumentation Eng., Changwon National University) ;
  • Jo Cheol-Woo (Dept. of Control & Instrumentation Eng., Changwon National University)
  • 박일서 (창원대학교 제어계측공학과) ;
  • 안혜영 (창원대학교 제어계측공학과) ;
  • 김대현 (창원대학교 제어계측공학과) ;
  • 조철우 (창원대학교 제어계측공학과)
  • Published : 2002.07.01
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Abstract

This paper describes procedures to implement a real-time pitch analyzer using Matlab. Matlab is a multi-purpose signal-processing tool. Using this tool real-time analysis tool is implemented. To make it real-time we used data acquisition toolbox which comes with Matlab. Autocorrelation method was used as a basic algorithm. The resulting pitch informations are displayed in two different forms, i.e. instantaneous pitch plot and pitch track. V/UV decision is performed using zero crossing rate and energy Informations based on 500 utterances.

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