Dynamic range compression: Difference between revisions

Revision as of 15:08, 22 October 2023

Revision as of 10:05, 29 November 2023

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| caption2 = Upward compression

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There are two types of compression,: downward and upward. Both downwardtypes and upwardof compression ''reduce'' the [[Dynamic range#Audio|dynamic range]] of an audio signal.<ref name="Reese">{{Cite book|last1=Reese|first1=David E|url=https://archive.org/details/audioproductionw0000rees|title=Audio Production Worktext: Concepts, Techniques, and Equipment|last2=Gross|first2=Lynne S|last3=Gross|first3=Brian|publisher=Focal Press|year=2009|isbn=978-0-240-81098-0|pages=[https://archive.org/details/audioproductionw0000rees/page/149 149]|oclc=1011721139|url-access=registration|via=Internet Archive}}</ref>

''Downward'' compression reduces the volume of loud sounds ''above'' a certain threshold. The quiet sounds ''below'' the threshold remain unaffected. This is the most common type of compressor. A [[limiter]] can be thought of as an extreme form of downward compression as it compresses the sounds over the threshold especially hard.