Design and Research on Free Lossless Audio Decoding Systems under the Embedded Development Platform of ARM9

摘要：

Free Lossless Audio Codec (FLAC) format is getting more and more popular through the internet; however, up to now, it is hard to find a decoder chip supporting this kind of format in the market and most of the FLAC decoding systems in software are based on personal computer (PC). In this paper, an embedded FLAC decoder system was designed, and the embedded development platform of ARM920T was built for the design. The FLAC format as well as the porting interface of FLAC source codes has been analyzed. Furthermore, the IIS bus of S3C2440 and DMA multicache mechanism technology in Linux which were used in designing the decoder system was put forward. Results show that the FLAC format sound can play well in the decoder system. The decoding solution can be applied to many high-end audio devices.

关键词： Lossless Audio Decoder IIS bus DMA multi-cache FLAC ARM920T Embedded audio system

作者: Zhu Fang Cai Weiming Zhou Yukun

作者单位: college of Telecommunication engineering, Hangzhou Dianzi University,Hangzhou 310018,China Biosystems Engineering Department, Zhejiang University, Hangzhou 310027, China Applied Engineering Department, Zhejiang Vocational College Of Commerce, Hangzhou 310053, China

会议类型: 国际会议

会议名称: Second International Symposium on Information Science and Engineering(第二届信息科学与工程国际会议)

会议地点: 上海

会议语种:英文

页码: 223-226

在线出版日期: 2009-12-26（万方平台首次上网日期，不代表论文的发表时间）