서지주요정보
5자유도 잔향 모델을 이용한 실내 잔향 필터의 설계 = Design of room reverberation filter by using 5-DOF reverberation model
서명 / 저자 5자유도 잔향 모델을 이용한 실내 잔향 필터의 설계 = Design of room reverberation filter by using 5-DOF reverberation model / 김소희.
저자명 김소희 ; Kim, So-Hee
발행사항 [대전 : 한국과학기술원, 2000].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8010839

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 00014

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Recently, 5-degrees-of-freedom(DOF) reverberation model was proposed as a method of representing subjective perception of reverberation as objective measures. This model approximates sound energy decay curve by five objective measures widely used in the field of concert hall acoustics, which are reverberation time, early decay time, initial time delay gap, clarity and R/D ratio. It can be used helpfully to reflect subjective perception on the design of a reverberation filter. But a selected 5-DOF reverberation model cannot determine uniquely an impulse response. Because it cannot tell us anything about the frequency characteristics of a filter and the change of slope in it means the change of pulse density or the change of pulse decay rate of an impulse response. Therefore, besides 5-DOF reverberation model, additional constraints are needed for the design of a filter to make natural reverberation. To find the constraints, listening test is necessary because naturalness of reverberation must be judged by human's auditory perception. For listening tests, absolute ranking method and relative comparison method were used and for statistical analysis, analysis of variance and paired comparison method were used. It is suggested that the constraints for a reverberation filter are irregular frequency response in frequency domain, and pulse density increased with time square and sufficient late pulse density of 1000 pulses per second in time domain. The design method of a reverberation filter is also suggested by listening tests, including these three constraints. At first, we design the FIR filter from 5-DOF reverberation model and three additional constraints, and then move each impulse of the filter randomly within certain range to satisfy irregular frequency response.

서지기타정보

서지기타정보
청구기호 {MME 00014
형태사항 iii, 87 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : A, 통계 분석 방법. - B, 인터넷을 이용한 청음 실험
저자명의 영문표기 : So-Hee Kim
지도교수의 한글표기 : 김양한
지도교수의 영문표기 : Yang-Hann Kim
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학전공,
서지주기 참고문헌 : p. 70-71
주제 실내 잔향
음 에너지
5자유도 잔향 모델
FIR 필터
청음 실험
Room reverberation
Sound energy
5-DOF reverberation model
FIR filter
Listening test
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