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KY. HO. Bang, Y. Park, and D. Youn, "A Dual Audio Transcoding Algorithm for Digital Multimedia Broadcasting Services," Paper 6814, (2006 May.). doi: KY. HO. Bang, Y. Park, and D. Youn, "A Dual Audio Transcoding Algorithm for Digital Multimedia Broadcasting Services," Paper 6814, (2006 May.). doi:
Abstract: 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.

@article{bang2006a,
author={bang, kyoung ho and park, young-cheol and youn, dae-hee},
journal={journal of the audio engineering society},
title={a dual audio transcoding algorithm for digital multimedia broadcasting services},
year={2006},
volume={},
number={},
pages={},
doi={},
month={may},} @article{bang2006a,
author={bang, kyoung ho and park, young-cheol and youn, dae-hee},
journal={journal of the audio engineering society},
title={a dual audio transcoding algorithm for digital multimedia broadcasting services},
year={2006},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={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.},}

TY - paper
TI - A Dual Audio Transcoding Algorithm for Digital Multimedia Broadcasting Services
SP - EP -
AU - Bang, Kyoung Ho
AU - Park, Young-cheol
AU - Youn, Dae-hee
PY - 2006
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2006 TY - paper
TI - A Dual Audio Transcoding Algorithm for Digital Multimedia Broadcasting Services
SP - EP -
AU - Bang, Kyoung Ho
AU - Park, Young-cheol
AU - Youn, Dae-hee
PY - 2006
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2006
AB - 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.