Envelope generator: Difference between revisions

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== ADSR ==
Most often the envelope generator is an ADSR (Attack Decay Sustain Release), which may be applied to overall [[amplitude]], [[frequency]], or [[Voltage controlled filter|filter]]. It is usually triggered by a [[gate]] signal from the keyboard.<ref name="q109">Synthesizers.com [httphttps://wwwweb.archive.org/web/20130622031327/http://synthesizers.com/q109.html Q109 Envelope Generator]</ref>
 
The contour of an ADSR envelope is specified using four parameters:
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== External links ==
* [https://web.archive.org/web/20130725070530/http://www.synthesizers.com/egpunch.html Q109 Envelope Generator Punch]
* [https://githubweb.comarchive.org/micjamkingweb/synth-secrets20190430214247/blobhttps:/master/part-3www.mdsoundonsound.com/techniques/modifiers-controllers Synth Secrets, Part 3: Modifiers & Controllers] by Gordon Reid, Sound on Sound, Jul 1999 - archived
* [https://githubweb.comarchive.org/micjamkingweb/synth-secrets20190422232353/blobhttps:/master/part-7www.mdsoundonsound.com/techniques/envelopes-gates-triggers Synth Secrets, Part 7: Envelopes, Gates & Triggers] by Gordon Reid, Sound on Sound, Nov 1999 - archived
* [https://githubweb.comarchive.org/micjamkingweb/synth-secrets20180902014325/blobhttps:/master/part-8www.mdsoundonsound.com/techniques/more-about-envelopes Synth Secrets, Part 8: More About Envelopes] by Gordon Reid, Sound on Sound, Dec 1999 - archived
* [http://173.201.189.104/forum/viewtopic.php?t=31473 What are all the ADSR's out there to build?] on electro-music.com
* Muff's Modules & More Forum:[https://www.muffwigglermodwiggler.com/forum/viewtopic.php?t=83193 CEM3310 equivalent circuit], Mod Wiggler forum, Apr 2013
=== Kits ===
* MFOS [https://web.archive.org/web/20190614005053/http://musicfromouterspace.com/index.php?CATPARTNO=NONE&PROJARG=ADSR001%252FADSR001.html&MAINTAB=SYNTHDIY&VPW=1150&VPH=777 ADSR Envelope Generator]
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* Formant music synthesizer by [[C. Chapman]], Elektor, 1978, p.&nbsp;64, using [[Operational amplifier|op-amps]] and common [[discrete]] components
* [http://yusynth.net/Modular/EN/ADSR/index.html yusynth ADSR] has a [[555]] core with a few op-amps.
* ''[https://web.archive.org/web/20190613221410/https://sdiy.info/wiki/File:The_Reprint_Collection_by_Thomas_Henry_CC_BY_NC%3AThe_Reprint_Collection_by_Thomas_Henry_CC_BY_NC.pdf ADSR the Easy Way]'' by Thomas Henry, Polyphony, March/Apil 1982, pp.&nbsp;22,23,30,3I.
* [https://www.schmitzbits.de/adsr.html Envelope ADSR schematics on Schmitzbits] - 3 envelope schematics based on readily available components.