Noise shaping: Difference between revisions
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'''Noise shaping''' is a technique used to "push" some of the noise in a signal to a part of the spectrum where we can't hear it. This doesn't decrease the amount of noise in a signal, it just makes it less apparent to any human listeners. It can be used in a variety of cases but is absolutely necessary for example when using [[Sigma Delta Modulation]] (a sampling technique used with [[SACD]]'s). | '''Noise shaping''' is a technique used to "push" some of the noise in a signal to a part of the spectrum where we can't hear it. This doesn't decrease the amount of noise in a signal, it just makes it less apparent to any human listeners. It can be used in a variety of cases but is absolutely necessary for example when using [[Sigma Delta Modulation]] (a sampling technique used with [[Super Audio Compact Disc|SACD]]'s). | ||
[[Category:Signal Processing]] | [[Category:Signal Processing]] | ||
Revision as of 13:23, 14 June 2007
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Noise shaping is a technique used to "push" some of the noise in a signal to a part of the spectrum where we can't hear it. This doesn't decrease the amount of noise in a signal, it just makes it less apparent to any human listeners. It can be used in a variety of cases but is absolutely necessary for example when using Sigma Delta Modulation (a sampling technique used with SACD's).