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Dynamic range compression

Alteration of volume range of a sound when it is transmitted.
Dynamic range compression

Dynamic range compression (DRC) or simply compression is an audio signal processing operation that reduces the volume of loud sounds or amplifies quiet sounds thus reducing or compressing an audio signal's dynamic range. Compression is commonly used in sound recording and reproduction, broadcasting, live sound reinforcement and in some instrument amplifiers.

A dedicated electronic hardware unit or audio software that applies compression is called a compressor. In the 2000s, compressors became available as software plugins that run in digital audio workstation software. In recorded and live music, compression parameters may be adjusted to change the way they affect sounds. Compression and limiting are identical in process but different in degree and perceived effect. A limiter is a compressor with a high ratio and, generally, a short attack time.

Key Terms

amplifies quiet sounds
audio signal
audio signal processing operation
compression
compressor
drc
dynamic range
dynamic range compression
sound recording
volume loud sounds

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Acronymn

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Synonymns

Dynamic range compression
Dynamic Distortion

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Last modified on June 16 2019
Content adapted from Wikipedia
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