[1]王婷,田泽,范飞虎. 一种高效MPEG-2/4 AAC音频解码硬件实现[J].计算机技术与发展,2015,25(05):10-12.
　WANG Ting,TIAN Ze,FAN Fei-hu. Hardware Realization of an Efficient MPEG-2/4 AAC Audio Decoder[J].,2015,25(05):10-12.
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 一种高效MPEG-2/4 AAC音频解码硬件实现()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年05期
页码:
10-12
栏目:
安全与防范
出版日期:
2015-05-10

文章信息/Info

Title:
 Hardware Realization of an Efficient MPEG-2/4 AAC Audio Decoder
文章编号:
1673-629X（2015)05-0010-03
作者:
 王婷; 田泽; 范飞虎
 中国航空计算技术研究所
Author(s):
WANG Ting ; TIAN Ze;  FAN Fei-hu
关键词:
 ; AAC; 状态机; 存储设计; 软硬件协同工作
Keywords:
 ; AAC; state machine; memory design; hardware/software co-design
分类号:
TP39
文献标志码:
A
摘要:
 目前MPEG-2/4 AAC( Advanced Audio Coding,先进音频编码)音频处理广泛采用DSP核与特定音频格式编解码的软件实现,使得MPEG-2/4 AAC编解码技术在嵌入式系统中面临集成难度大、功耗高等问题。为了完成智能化、通用化、小型化的实时解码,文中提出了一种高效MPEG-2/4 AAC音频解码的硬件实现,介绍了体系结构设计、控制器、存储设计和软硬件协同工作等关键技术。通过仿真、FPGA验证和流片测试证明该系统使用硬件实现音频解码,软件辅助流程控制,完成了音频实时解码,可移植性强,易集成,取得了较好的效果。
Abstract:
 It is normally adopted DSP and special software to realize MPEG-2/4 AAC audio decoder,so MPEG-2/4 AAC encoder and decoder has been faced with the problem of hardly integrated and high power in embedded system. In order to complete the real-time de-coder with intelligence,generalization and miniaturization,propose the hardware realization of an efficient MPEG-2/4 AAC audio decod-er. Introduce the key techniques like architecture design,memory,storage design,and the hardware/software co-design. Through the sim-ulation,FPGA verification and test,the results show that the system utilizes the hardware to implement the audio decoding,software to aid the process control,finishing the real-time audio decoding,with strong portability and easy integration,which has good effects.

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更新日期/Last Update: 2015-06-23