Papers

Enhancing loudspeaker-based 3D audio with room modeling

International Conference
2006~2010
작성자
한혜원
작성일
2010-10-04 23:47
조회
1295
Authors : Myung-Suk Song, Cha Zhang, Dinei Florencio, Hong-Goo Kang

Year : 2010

Publisher / Conference : MMSP

For many years, spatial (3D) sound using headphones has been widely used in a number of applications. A rich spatial sensation is obtained by using head related transfer functions (HRTF) and playing the appropriate sound through headphones. In theory, loudspeaker audio systems would be capable of rendering 3D sound fields almost as rich as headphones, as long as the room impulse responses (RIRs) between the loudspeakers and the ears are known. In practice, however, obtaining these RIRs is hard, and the performance of loudspeaker based systems is far from perfect. New hope has been recently raised by a system that tracks the user's head position and orientation, and incorporates them into the RIRs estimates in real time. That system made two simplifying assumptions: it used generic HRTFs, and it ignored room reverberation. In this paper we tackle the second problem: we incorporate a room reverberation estimate into the RIRs. Note that this is a nontrivial task: RIRs vary significantly with the listener's positions, and even if one could measure them at a few points, they are notoriously hard to interpolate. Instead, we take an indirect approach: we model the room, and from that model we obtain an estimate of the main reflections. Position and characteristics of walls do not vary with the users' movement, yet they allow to quickly compute an estimate of the RIR for each new user position. Of course the key question is whether the estimates are good enough. We show an improvement in localization perception of up to 32% (i.e., reducing average error from 23.5° to 15.9°).
전체 355
215 Domestic Journal 이정인, 최정윤, 강홍구 "음성감정인식에서 음색 특성 및 영향 분석" in 방송공학회논문지, vol.18, 제 5호, pp.771-774, 2013
214 Domestic Journal 이정인, 강홍구 "음성감정인식에서의 톤 정보의 중요성 연구" in 방송공학회논문지, vol.18, 제 5호, pp.713-721, 2013
213 International Conference Jinkyu Lee, Hyunson Seo, Hong-Goo Kang "Adaptation of HMM dynamic parameters in reverberant environment" in EUSIPCO, 2013
212 International Conference Jae-Mo Yang, Hong-Goo Kang "Adaptive multichannel linear prediction based dereverberation in time-varying room environments" in EUSIPCO, 2013
211 Domestic Journal Jae-Mo Yang, Weige Chen, Z. Zhang, Hong-Goo Kang "반향 음성 신호의 하모닉 모델링을 이용한 음질 예측 알고리즘" in 방송공학회논문지, vol.18, issue.6, pp.919-926, 2013.11
210 International Conference JeeSok Lee, Frank Soong, Hong-Goo Kang "Source-Filter based Full-band Adaptive Harmonic Model and Its Application to Speech Prosody Modification" in INTERSPEECH, 2013
209 Domestic Conference 이태규, 백용현, 박영철, 윤대희 "스테레오-멀티채널 업믹스 시스템에서의 초기 반사음 생성 기법" in 한국방송공학회, 2013
208 International Journal Seong-woo Kim, Young-Cheol Park, Dae Hee Youn "A variable step-size gradient adaptive lattice algorithm for multiple sinusoidal interference cancelation" in EURASIP Journal on Advances in Signal Processing, vol.106, 2013
207 International Conference Young-Sun Joo, Chi-Sang Jung, Hong-Goo Kang "Enhancement of spectral clarity for HMM-based text-to-speech systems" in ICASSP, 2013
206 International Journal Jung-In Lee, Jeung-Yoon Choi, Hong-Goo Kang "Refinement of Landmark Detection and Extraction of Articulator-Free Features for Knowledge-Based Speech Recognition" in IEICE Transactions on Information and Systems, vol.E96-D, No.3, pp.746-749, 2013