Title :
AAC level controller on bitstream domain
Author :
Joo, Unggul ; Park, Hochong
Author_Institution :
Dept. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
In digital broadcasting services, a difference in audio level among channels and contents causes users to modify audio output level whenever they change the channels or contents. To solve this problem, a novel method to control audio level of MPEG-2/4 AAC on the bitstream domain is proposed. It is verified that the proposed method has better performance than the level control in waveform domain.
Keywords :
telecommunication services; AAC level controller; MPEG-2-4 AAC; bitstream domain; digital broadcasting services; waveform domain; Audio coding; Bit rate; Decoding; Digital audio broadcasting; Equations; Level control; Quantization;
Conference_Titel :
Communications and Information Technology, 2009. ISCIT 2009. 9th International Symposium on
Conference_Location :
Icheon
Print_ISBN :
978-1-4244-4521-9
Electronic_ISBN :
978-1-4244-4522-6
DOI :
10.1109/ISCIT.2009.5341074
