A Low Power MPEG-1/2 Layer Ⅰ/Ⅱ/Ⅲ Audio Decoder with Downsampling Mode

摘要：

This paper presents a low cost and low power MPEG-1/2 Lay Ⅰ/Ⅱ/Ⅲ audio decoder.The decoder consists of a software core and a hardware core.By the corporation between the two parts,it can realtimely decode MPEG-1/2 Layer Ⅰ/Ⅱ/Ⅲ audio bitstream at a low clock frequency.A filtering architecture based on sub-band filter banks in perceptual audio coding is proposed.Using the new filtering architecture,the decoder can work at downsampling mode,which can decrease the power consumption of both the decoder and the output digital-to-analog converter.The proposed filter architecture also provides better Signal-to-Noise-Ratio than before.

作者: ZHU Ziyuan LIN Tao

作者单位: VLSI Institute,Tongji University

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）