Difference between revisions of "Compressor"

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{{ednote|'''Peter 2May14:''' This page is a potential candidate for deprecation, the material is, or should be, handled more than adequately in the Manual.
{{advice|This page has been transferred to the Audacity Manual - see [http://manual.audacityteam.org/o/man/compressor.html Compressor] in the Audacity Manual.}}
* '''Gale 02May14:''' The additional sections for further reading and Chris's Compressor are valuable. Given Chris's family permit downloading of his plug-in and the Manual already links to some third-party software, I have no objection if we moved the additional sections into the Manual.
'''Peter 6Jun14:''' I transferred the relevant sections to the alpha Manual - adding to the foot of [http://manual.audacityteam.org/man/Compressor Compressor] and creating a new page [http://manual.audacityteam.org/man/Chris%27s_Dynamic_Compressor Chris's Dynamic Compressor]<p>[[ToDo-206]] once 2.0.6 has been released this page can be deleted and replaced with a redirect to the then current manual (to the Compressor page and the Chris's page).</p> }}
{{intro|1=Audacity's '''[http://manual.audacityteam.org/o/man/compressor.html Compressor]''' effect reduces "dynamic range" by making the loud sections quieter, then optionally amplifies the compressed audio to be as loud as possible without clipping. This increases the perceived overall loudness of the audio.|2=}}
==Further reading==
There are some good (but not too technical) explanations of compression here:
* [http://www.harmonycentral.com/t5/Effects-Signal-Processors/Compressors-Demystified/ba-p/35515615 Compressors demystified]  (Harmony Central)
* [http://www.soundonsound.com/sos/sep09/articles/compressionmadeeasy.htm Compression Made Easy] with [http://www.soundonsound.com/sos/sep09/articles/compressioneasyaudio.htm audio files] (Sound On Sound)
More advanced:
* [http://www.soundonsound.com/sos/dec00/articles/adcompression.htm Advanced Compression Techniques Part 1] and  [http://www.soundonsound.com/sos/jan01/articles/advanced.asp Part 2]  (Sound On Sound)
<div id="alternative"></div>
== An alternative Free Compressor==
* '''Chris's dynamic compressor''' by the late Chris Capel is a popular [http://en.wikipedia.org/wiki/Nyquist_%28programming_language%29 Nyquist] plug-in that tries to even out abrupt changes of volume by employing "''lookahead''" (this attempts to anticipate volume changes by starting to apply compression before the volume rises to the threshold level). There are options to soften the softer audio and invert loudness. See instructions for [[Nyquist Plug-ins#Installation|Nyquist plug-in installation]]. Several versions of this plug-in may be downloaded.
** An archived 1.1 version of this plug-in can be downloaded by left-clicking [http://web.archive.org/web/20080705130736/http://pdf23ds.net/projects/compressor/compress.ny this link], then use the browser feature to save the web page in text format. Right-click and "Save Link As" or "Save Target As" may also work in some browsers. Archived documentation can be found [http://web.archive.org/web/20081120011622/http://pdf23ds.net/software/dynamic-compressor/ here].
** A more advanced 1.2.6 version of this plug-in can be downloaded [http://theaudacitytopodcast.com/chriss-dynamic-compressor-plugin-for-audacity/ here].
** '''Neither of the above versions can be modified or redistributed.''' We hope to make a freely-licensed version of this plug-in available for separate download later, based on Chris's 1.2.7 Beta version which has a free [http://en.wikipedia.org/wiki/MIT_License MIT License]. For more information, please visit http://forum.audacityteam.org/viewtopic.php?f=42&t=58958 .

Revision as of 14:45, 30 September 2014

Warning icon This page has been transferred to the Audacity Manual - see Compressor in the Audacity Manual.