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dc.contributor.author김선일-
dc.date.accessioned2018-02-12T05:22:17Z-
dc.date.available2018-02-12T05:22:17Z-
dc.date.issued2011-09-
dc.identifier.citationJournal of Biomedical Engineering Research, 2011, 32(3), P.198-206en_US
dc.identifier.issn1229-0807-
dc.identifier.urihttp://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OOSCB@_2011_v32n3_198-
dc.description.abstractHearing devices like cochlear implant, vibrant soundbridge, etc. try to offer better sound for people. In hearing devices, several beamformers including conventional directional microphone are applicable to noise reduction. Each beamformer has different directional response and it could change sound intelligibility or quality for listeners. Therefore, we investigated the performance of three beamformers, which are first and second order directional microphone, and broadband beamformer(BBF) with a computer simulation assuming hearing device microphone configuration. We also calculated objective measurements which have been used to evaluate speech enhancement algorithms. In the simulation, a single speech and a single babble noisewere propagated from the front and $135^{\circ}$ azimuth degrees respectively. Microphones were configured in an end-fire array and the spacing was varied in comparison. With 3 cm spacing, BBF had about 3 dB higher enhanced SNR than that of directional microphones. However, enhancement of segmental SNR and frequency weighted segmental SNR were similar between the first order directional microphone and broadband beamformer. In addition when steady state noise was used, broadband beamformer showed the increased performance and had the highest enhanced SNR, and segmental SNR.en_US
dc.description.sponsorship본 연구는 지식경제부 바이오의료기기전략기술개발사업의 지원으로 이루어졌음(과제번호: 10031764).en_US
dc.language.isoko_KRen_US
dc.publisherThe Korea Society of Medical and Biological Engineeringen_US
dc.subjectbeamformingen_US
dc.subjecthearing deviceen_US
dc.subject청각기기en_US
dc.subject빔포밍en_US
dc.title2채널 마이크로폰을 이용한 청각 기기에서의 빔포밍에 대한 객관적 검증en_US
dc.title.alternativeObjective Evaluation of Beamforming Techniques for Hearing Devices with Two-channel Microphoneen_US
dc.typeArticleen_US
dc.relation.no3-
dc.relation.volume32-
dc.identifier.doi10.9718/JBER.2011.32.3.198-
dc.relation.page198-206-
dc.relation.journal의공학회지-
dc.contributor.googleauthor조경원-
dc.contributor.googleauthor한종희-
dc.contributor.googleauthor홍성화-
dc.contributor.googleauthor이상민-
dc.contributor.googleauthor김동욱-
dc.contributor.googleauthor김인영-
dc.contributor.googleauthor김선일-
dc.contributor.googleauthorCho, Kyeong-Won-
dc.contributor.googleauthorHan, Jong-Hee-
dc.contributor.googleauthorHong, Sung-Hwa-
dc.contributor.googleauthorLee, Sang-Min-
dc.contributor.googleauthorKim, Dong-Wook-
dc.contributor.googleauthorKim, In-Young-
dc.contributor.googleauthorKim, Sun-I.-
dc.relation.code2012214535-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF ELECTRICAL AND BIOMEDICAL ENGINEERING-
dc.identifier.pidsunkim-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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