Browse > Article
http://dx.doi.org/10.7776/ASK.2012.31.6.359

The Voice Quality Improvement by Bone Conduction Feedback Compensation in Mobile Phone  

Park, Hyung-Woo (숭실대학교 정보통신공학학과)
Lim, Won-Seok (숭실대학교 정보통신융합학과)
Bae, Myung-Jin (숭실대학교 정보통신공학학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.31, no.6, 2012 , pp. 359-366 More about this Journal
Abstract
Today, people are exposed to the various noisy environments, such as in the buses, subway and supermarkets where there are a lot of people. The noise issue is getting more serious as people want to use portable sound equipment and mobile phones even under this noisy condition. People want to use the portable equipment to exchange the information freely and they set the volume as 15dB higher than the noise around them, which almost reach at 110 dB. That amount of sound can cause noise induced deafness to the users and another issue to the others as additional noise source. A Bone-conduction system can be a solution to reduce noise and enhance voice signal of mobile phone. In this paper, we propose the way of cancelling noise and enhancing speech signal of mobile phones, by installing bone-conduction feedback system with ordinary mobile phones. With this system, we can reduce the environment noise and enhance the voice quality of mobile phones. Using this method, we can enhance the signal by around 17 dB.
Keywords
Bone Conduction Phone; Noise Environment; Noise Reduction; Bone Conduction Feedback;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김진우, 배명진, "이어폰 음압에 따른 청력손실에 관한 연구," 대한전자공학회 하계종합 학술대회지, 32 권, 1호, pp. 1086-1087, 2009.
2 KS I ISO 8253-1, 음향학-청력검사 방법 1부:기본순음 공기 및 골전도 청력 역치 측정법, 2003.
3 KS C IEC 60373, 골도 진동자 측정용 역학 커플러, 2001.
4 박형우, 이성태, 배명진, "다양한 잡음 환경에서 통화 가능한 SNR에 관한 연구,"한국음향학회 춘계 학술대회논문집, 29권, 1(s)호, pp. 36-37, 2010.
5 이성태, 박형우, 배명진, "휴대전화 사용에 따른 소음성 난청예방에 관한 연구,"한국음향학회 춘계 학술대회논문집, 29권, 1(s)호, pp. 501-502, 2010.
6 박현구, 신용구, 김향, 송민정, 김선우, "도시 환경음의 음질 평가," 한국소음진동공학회, 2005년도춘계학술대회논문집, pp. 529-534, 2005.
7 권형준, 배명진, "소음성 난청 예방을 위한 자가청력 측정법에 관한 연구," 한국음향학회지, 29권, 3호, pp. 184-190, 2009.
8 배명진, 이상효, 디지탈 음성분석, 동영출판사, 1998.
9 "소음측정 및 평가," 산업안전보건연구원 안전위생 연구센터, 2007.
10 고의경, "난청의 진단," Journal of Clinical Otolaryngology, Head and Neck Surgery, 14권, 2호, pp. 161-167, 2003.
11 박우철, 이상봉, 이선희, 음향기술총론, 차송, 2009.
12 P. Henry and T. R. Letowski, "Bone Conduction : Anatomy, Physiology, and Communication," U.S. Army Research Laboratory, no. ARL-TR-4138, Tech. Rep., May, 2007.
13 김재수, 소음진동학, 세진사, 2006.