A Novel MPEG Audio Degrouping Algorithm and Its Architecture Design

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题名:	A Novel MPEG Audio Degrouping Algorithm and Its Architecture Design
作者:	Tsai,TH
贡献者:	電機工程學系
日期:	2010
上传时间:	2012-03-28 10:10:00 (UTC+8)
出版者:	國立中央大學
摘要:	Degrouping is the key component in MPEG Layer II audio decoding. It mainly contains the arithmetic operations of division and modulo. So far no dedicated degrouping algorithm and architecture is well realized. In the paper we propose a novel degrouping algorithm and its architecture design with low complexity design consideration. Our approach relies on only using the addition and subtraction instead of the division and modulo arithmetic operations. By use of this technique, it achieves the equivalent result without any loss of accuracy. The proposed design is without any multiplier, divider and ROM table and thus it can reduce the design complexity and chip area. In addition, it does not need any programming effort on numerical analysis. The result shows that it takes the advantages of simple and low cost design. Furthermore, it achieves high efficiency on fixed throughput with only one clock cycle per sample. The VLSI implementation result indicates the gate counts are only 527.
關聯:	EURASIP JOURNAL ON AUDIO SPEECH AND MUSIC PROCESSING
显示于类别:	[電機工程學系] 期刊論文

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