Papers

A Dual Audio Transcoding Algorithm for Digital Multimedia Broadcasting Services

International Conference
2006~2010
작성자
한혜원
작성일
2006-05-20 22:33
조회
160
Authors : Kyoung Ho Bang, Young Cheol Park, Dae Hee Youn

Year : 2006

Publisher / Conference : 120th Convention of Audio Engineering Society

Page : 6814

In this paper, we propose a dual audio transcoding algorithm to service high quality audio streams using a broadcasting network comprising heterogeneous audio formats. As two typical cases, audio transcodings from TDTV to T-DMB and S-DMB services are considered. While the Korean DTV audio standard employs the Dolby AC-3, the Korean T-DMB and Korean S-DMB services use the MPEG-4 BSAC and the MPEG-4 HE-AAC audio coding technologies, respectively. In the proposed algorithm, the bit allocation information of AC-3 is reused in the process of BSAC and HE-AAC encodings and the nested loops are reestablished as two independent loops, which saves significant amount of computational cost. In overall, the transcoding algorithm can save about 65% of computational cost for the BSAC encoding and 31% of HE-AAC encoding. Subjective quality evaluations show that the proposed algorithm has mean diffgrades of -0.02 and -0.01 relative to the tandem method. Due to its computational simplicity and effective performance, the proposed algorithm is suitable for the mobile multimedia services.
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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
7 International Conference Kyoung Ho Bang, Young Cheol Park, Dae Hee Youn "Audio Transcoding Algorithm For Mobile Multimedia Application" in ICASSP, 2006
6 International Conference Bong-Jin Lee, Sung-Wan Yoon, Hong-Goo Kang, Dae Hee Youn "On the Use of Voting Methods for Speaker Identification Based on Various Resolution Filterbanks" in ICASSP, 2006
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4 International Conference Samuel Kim, Sungwan Yoon, Thomas Eriksson, Hong-Goo Kang, Dae Hee Youn "A noise-robust pitch synchronous feature extraction algorithm for speaker recognition systems" in INTERSPEECH, 2005
3 International Conference Jae-woong Jeong, Junho Lee, Young-Cheol Park, Jeong-Tae Kim, Dae Hee Youn "Design and Implementation of IIR Crosstalk Cancellation Filters Approximating Frequency Warping" in 118th Convention of Audio Engineering Society, pp.6490, 2005
2 International Conference Kyoung Ho Bang, Keun-Sup Lee, Young-Cheol Park, Dae Hee Youn "Fast Bit Allocation Method for MP3/AAC Encoders" in 118th Convention of Audio Engineering Society, 2005