Abstract：A real-time MPEG-2 layerl,2 audio CODEC realized on one TMS320C31 chip,which is a new DSP product of TI,is developed in this paper. In order to realize code & decode in real-time,new fast algorithms for MPEG-2 audio sub-band analysis filter and sub-band synthesis filter are presented respectively. Using these fast algorithms,the computational load of sub-band analysis/synthesis can be reduced to 1/5 and 1/10 that of the original algorithms respectively.All the algorithms have been simulated on software and hardware. Through a simulator,the programms are loaded to a TMS320C31 and realize code and decode in realtime.
刘常澍; 马欣; 李文元; 张毓忠. MPEG-2音频实时压缩编解码的一种快速算法[J]. 电子与信息学报, 2001, 23(2): 147-153 .
Liu Changshu; Ma Xin; Li Wenyuan; Zhang Yuzhong . A FAST ALGORITHM FOR REAL-TIME MPEG-2AUDIO CODING AND DECODING. , 2001, 23(2): 147-153 .
2001, Vol. 23 
