Browse > Article

On an Adaptation of Announcement Sound Level in White Noise Environment  

Yun, Jong-Jin (Department of Information and Telecommunication Engineering, Soongsil University)
Bae, Myung-Jin (Department of Information and Telecommunication Engineering, Soongsil University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.49, no.1, 2012 , pp. 112-118 More about this Journal
Abstract
In daily life, there are many information broadcasting by using voice information systems. If surrounding noises are mixed with the information signals, the clarity of the signal become down graded too much to understand. Surrounding noises are not uniformed, but very irregular signals always changing. Therefore, it is very hard to control the output signals along with the irregular signals. This paper suggests a method to change the level of the voice information adapting to the surround noise in the white noise environment. The surround noise level is measured by subtracting the stored output voice signal from the voice signal degraded by the noise. The noise is used to estimation of SNR. And, the method to change the output level of voice signal adapting to the noise level. The suggested adaptive voice information system has the advantage to improve listeners' speech perception and to use amplifier's energy effectively.
Keywords
speech announcement; white noise; announcement sound level; speech perception;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김진우, 이동형 단말기에서 코퍼스 기반 음성합성의 계산량 감소에 관한 연구, 석사학위 논문, 숭실대학교, 2009.
2 나덕수, 코퍼스 기반 일본어 음성 합성기의 성능 향상에 관한 연구, 박사학위 논문, 숭실대학교, 2009.
3 D. G. Klatt, "Review of Text-To-Speech Conversion for Engilsh," Jnl. of the Acoustic Society of America, vol. 82, pp.737-793, 1987.   DOI
4 강선미, 김현득, 장문수, "음향효과를 이용한 안내 방송 인지도 향상에 관한 연구," 한국정보기술학회 논문지, 제 8권, 제 9호, 135-142쪽. 2010.
5 Ahmed H. O, Dennis J. H, Badran O, Ismail M, Ballal S. G, Ashoor A and Jerwood D, "High-frequency (10-18kHz) hearing thresholds: reliability, and effects of age and occupational noise exposure," Occupational Medicine, Vol.51, No.4, pp.245-258, 2001.   DOI
6 견두헌, 배명진, "연령에 따른 주파수 대역의 청력 특성 연구", 한국통신학회, 제 20회 신호처리합동 학술대회 논문집, KSPC'07, Vol.20, No.1, pp. 142-143, 2007.
7 Masayuki Sakamoto, Masashi Sugasawa, Kimitaka Kaga and Tomokazu Kamio, "Average Thresholds in the 8 to 20 kHz Range as a Function of Age," Scnadinavian Audiology, Vol.27, No.3, pp.189-192, 1998.   DOI
8 권형준, 소음성 난청 예방을 위한 자가청력측정법에 관한 연구, 석사학위 논문, 숭실대학교, 2009.
9 최성규, "음성언어의 S/N 비율 변화에 따른 건청 아동과 청각장애아동의 어음변별력 비교 연구," 언어치료연구, 제 12권, 제 2호, 97-110쪽, 2003.
10 이성태, 소리의 원리와 응용, 청문각, 2004.
11 Y. Ephraim and D. Malah, "Speech enhancement using a minimum mean-square error short-time spectral amplitude estimator," IEEE Trans. Acoust., Speech, Signal Processing, Vol.ASSP-32, No.6, pp.1109-1121, 1984.