Difference between revisions of "Oversampling"

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==Oversampling input==
 
==Oversampling input==

Revision as of 15:13, 19 June 2019

This page is in a collection about both human and automatic dealings with audio, video, and images, including


Audio physics and physiology

Digital sound and processing


Image

Video

Stray signals and noise


For more, see Category:Audio, video, images


Oversampling input

Oversampling, a.k.a. supersampling, refers to fetching more samples than you strictly need for a purpose, but can use for other reasons.


For example, you might want 10 temperature samples per second, but actually sample 1000 times per second and average every 100, to get a slightly stabler output value.


This is useful for a few different but related reasons.


Avoid aliasing, and/or easier input filtering

Imitate higher resolution, and lower noise

See also

Oversampling output

Oversampling PWM

Upsampling DAC