대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2002년도 합동 추계학술대회 논문집 정보 및 제어부문
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- Pages.529-532
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- 2002
음정 교정을 위한 실시간 Pitch Tracer의 개발
Development of Real Time Pitch Tracer for Training of Musical Tune
- Jung, Young-Chul (Dept. of Electrical, Electronic, Information & Communication Engineering Graduate School, Kongju National University) ;
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Choi, Doo-Il
(Dept. of Electrical, Electronic, Information & Communication Engineering Graduate School, Kongju National University) ;
- Cho, Woo-Yeon (Dept. of Electrical, Electronic, Information & Communication Engineering Graduate School, Kongju National University)
- 발행 : 2002.11.30
초록
This research treated development of real time pitch tracer for training of musical tune of speech signal and pre-processing and post-processing technics were proposed to get higher accuracy in extraction of pitch. Autocorrelation Function was used to get pitch frequency from 64Hz to 980Hz in real time. Half Rectifier method and Envelop extraction method as a pre-processing was used to get higher accuracy in pitch detection, and improved results were obtained on noised speech signal. Post-processing method using periodicity of Autocorrelation was proposed to get higher accuracy in the high frequency region.
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