OVERSAMPLED ANALOG-TO-DIGITAL CONVERSION FOR DIGITAL AUDIO SYSTEMS

被引：0

作者：

DARLING, TF ^{[1
]}

HAWKSFORD, MOJ ^{[1
]}

机构：

[1] UNIV ESSEX,DEPT ELECTR SYST ENGN,COLCHESTER CO4 3SQ,ESSEX,ENGLAND

来源：

JOURNAL OF THE AUDIO ENGINEERING SOCIETY | 1990年 / 38卷 / 12期

关键词：

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

An alternative method of digitizing music signals is presented. It relies on the techniques of spectral noise shaping and oversampling, which achieve theoretical and computed signal-to-quantization-noise ratios of 110-120 dB. This encoding scheme is based on higher order delta-sigma modulation and is referred to as HLDSM A/D conversion. A hardware version of this system was developed measuring 80-dB SQNR and 0.007% total harmonic distortion. Potentially the HLDSM A/D converter offers noise and distortion performance superior to pulse-code modulation, a simpler hardware realization, and reduced cost.

引用

页码：924 / 943

页数：20

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