Papers

Efficient Out of Head Localization System for Mobile Applications

International Conference
2006~2010
작성자
한혜원
작성일
2006-05-20 22:30
조회
1285
Authors : Tacksung Choi, Young-Cheol Park, Dae Hee Youn

Year : 2006

Publisher / Conference : 120th Convention of Audio Engineering Society

Page : 6758

Headphone reproduction of stereo sources often gives in-the-head-localization. One possible solution to this problem is to give directional filtering and room response to the headphone reproduction system. Conventional out of head localization (OHL) schemes consist usually of a tapped delay line to simulate the direct signal path and early room reflections. Each of the taps must be filtered by a pair of HRTF, which leads to a very high processing cost. Our study is based on the fact that spatial impression (SI) can increase the effects of OHL. Our research is to generate the maximum SI with a minimum cost. Through subjective listening tests, the degree of SI was found to be the greatest for reflections within 15 to 30msec time frame from the direct sound and it is greatest for those in opposite direction to the listener’s ears. Based on the test results, we propose an efficient OHL system. In the proposed system, multiple reflections are replaced by a pair of reflections, and HRTF filtering required to simulate directivity of the reflections is implemented using a set of first order IIR shelving filters. According to the subjective tests, we show that the proposed system efficiently creates OHL with a small computational figure, and its performance is comparable to the conventional scheme of high complexity.
전체 363
17 International Conference Keun-Sup Lee, Young-Cheol Park, Dae Hee Youn "Fixed-Point Processing Optimization of Mpeg Audio Encoder Using Statistical Model" in 122th Convention of Audio Engineering Society, pp.7023, 2007
16 International Conference Min-Seok Choi, Chang-Hyun Baik, Young-Cheol Park, Hong-Goo Kang "A Soft-Decision Adaptation Mode Controller for an Efficient Frequency-Domain Generalized Sidelobe Canceller" in ICASSP, 2007
15 International Conference Myung-Suk Song, Chang-Heon Lee, Hong-Goo Kang "Performance Analysis of Various Single Channel Speech Enhancement Algorithms for Automatic Speech Recognition" in INTERSPEECH, 2006
14 International Conference Chang-Heon Lee, Sung-Kyo Jung, Thomas Eriksson, Won-Suk Jun, Hong-Goo Kang "An Efficient Segment-Based Speech Compression Technique for Hand-Held TTS Systems" in INTERSPEECH, 2006
13 International Conference Yang-Won Jung, Hong-Goo Kang, Hyo Jin Kim, Seung Jong Choi "Adaptive Microphone Array with Self-Delay Estimator" in The Proceedings of The AES 29th International Conference, 2006
12 International Conference Young-Cheol Park, Taik-sung Chio, Jae-woong Jung, Dae Hee Youn, Siwook Nam, Jungmin Song "Low Complexity 3D Audio Algorithms for Handheld Devices" in The Proceedings of The AES 29th International Conference, 2006
11 International Conference Yang-Won Jung, Hyen-O Oh, Hyo Jin Kim, Seung Jong Choi "New CLD Quantization Method for Spatial Audio Coding" in 120th Convention of Audio Engineering Society, pp.6734, 2006
10 International Conference Junho Lee, Jae-woong Jeong, Young-Cheol Park, she-Woong Jeong, Dae Hee Youn "Effective Room Equalization Based on Warped Common Acoustical Poles and Zeros" in 120th Convention of Audio Engineering Society, pp.6721, 2006
9 International Conference Kyoung Ho Bang, Young Cheol Park, Dae Hee Youn "A Dual Audio Transcoding Algorithm for Digital Multimedia Broadcasting Services" in 120th Convention of Audio Engineering Society, pp.6814, 2006
8 International Conference Tacksung Choi, Young-Cheol Park, Dae Hee Youn "Efficient Out of Head Localization System for Mobile Applications" in 120th Convention of Audio Engineering Society, pp.6758, 2006