Title :
Implementation of MPEG-2 AAC on 16-bit Fixed-Point DSP
Author :
Wang, Hui ; Xu, Wenbin ; Dong, Xin ; Li, Chuanzhen ; Yu, Wenhua
Author_Institution :
Inf. Eng. Sch., Commun. Univ. of China, Beijing
Abstract :
Efficient implementation of MPEG-2 advanced audio coding (AAC) decoder on low cost 16-bit fixed-point DSP needs some techniques to reduce the computational complexity. In this paper, we introduce an extra gain factor to adjust the value range of the spectrum data, and by adapting other techniques such as FFT, a low cost and high quality MPEG-2 AAC decoder is obtained
Keywords :
audio coding; codecs; digital signal processing chips; 16 bit; MPEG-2 AAC decoder; advanced audio coding decoder; computational complexity; fast Fourier transform; fixed-point digital signal processor; spectrum data; Audio coding; Computational complexity; Costs; Decoding; Digital audio players; Digital signal processing; Filter bank; Noise level; Sampling methods; Transform coding; 16-bit; DSP; MPEG-2 AAC; fixed-point;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342231
