Publisher : The Korean Institute of Broadcast and Media Engineers
DOI : 10.5909/JBE.2016.21.3.357
Title & Authors
A Study on the Variable Transmission of xHE-AAC Audio Frame Lee, Bongho; Yang, Kyutae; Lim, Hyoungsoo; Hur, Namho;
In DAB+, HE-AAC v2 codec is applied for the fixed rate transmission of audio stream. In case that xHE-AAC codec including USAC, a more efficiency is expected when the variable frame is used in a given same bandwidth compared to the fixed frame transmission. For this to be realized, audio streams need to be multiplexed in a sub-channel before transmission, then a method is required to identify the border of each audio frames. In this paper, the toggled sync byte and additional identification field being sequentially placed between AU borders are proposed in order to deal with the AU border identification. In addition, the Reed-Solomon based error correction code which is compliant to DAB+ is proposed.
Digital radio;DAB+;HE-AAC v2;xHE-AAC;FEC;
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