ADSR(Attack, Decay, Sustain and Release)

ADSR refers to Attack, Decay, Sustain and Release. Depending on what you are working with, these names mean relatively different things.



Knowing how ADSR works is very useful especially if you are working with synthesizers and trying to create your own patches. By knowing the basics and being able to implement each of these four elements of the waveform you are able to create the sounds you are looking for.
Whether you need washing pads with a long attack and sustain or quick synth stabs with instant attack and no release you can easily program your synths or processors to create the sounds you are looking for.

For more detailed information on each one of this terms, the link below explains each one them with graphical representations. Very useful.

http://audio.tutsplus.com/tutorials/production/an-introduction-to-adsr/