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학술지
A Study of a Valid Frequency Range using Correlation Analysis of Throat Signal
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- 저자
- 정영규, 한문성, 정경용, 이상조
- 발행일
- 201111
- 출처
- Information : An International Interdisciplinary Journal, v.14 no.11, pp.3791-3800
- ISSN
- 1343-4500
- 출판사
- International Information Institute
- 협약과제
- 11SF1100, 시각 생체 모방 소자 및 인지 시스템 기술 개발, 정명애
- 초록
- In this paper, a valid frequency range of throat signal analyses is presented. Compare to speech signals, the throat signals have many differences in the amount of information. In this context, targeting on throat signals to find valid frequency range is one of the most important analyses for the development of new breed of feature extraction algorithm. In this respect, Using analysis similarity of throat signals feature distribution and correlation analysis of throat signals in the frequency domain, the frequency range can be found with effective and quick response time to be applied to a voice command recognition system using neck-microphone. As a result, the proposed frequency range is from 200Hz(center frequency) to 2001Hz(center frequency). For the neck-microphone voice command system using the proposed frequency range, a significant reduction in time complexity of 25% can be achieved without any loss in recognition rate. © 2011 International Information Institute.