Noise Transfer Function Design and Optimization for Digital Sigma-Delta Audio DAC

Noise Transfer Function Design and Optimization for Digital Sigma-Delta Audio DAC

The parameters of sigma-delta audio DAC depend mainly on digital sigma-delta modulator’s features, especially on its noise transfer function (NTF). Many methods of design and optimization of the loop filter’s coefficients in sigma-delta modulators have been proposed so far. These methods enable t...

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Bibliographic Details
Main Author: Marcin LEWANDOWSKI
Format: Article
Language:English
Published: Institute of Fundamental Technological Research Polish Academy of Sciences 2013-10-01
Series:Archives of Acoustics
Subjects:
noise transfer function (NTF)
NTF design
NTF optimization
sigmadelta modulation
sigma-delta audio DAC
psychoacoustic NTF optimization
Online Access:https://acoustics.ippt.pan.pl/index.php/aa/article/view/199
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Description
Summary:The parameters of sigma-delta audio DAC depend mainly on digital sigma-delta modulator’s features, especially on its noise transfer function (NTF). Many methods of design and optimization of the loop filter’s coefficients in sigma-delta modulators have been proposed so far. These methods enable the designer to get suitable noise transfer functions for specific application. This paper reviews NTF design and optimization methods which are particularly useful in audio applications.
ISSN:0137-5075
2300-262X

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