What is Release Time?

Release Time is the amount of time it takes for a sound or audio processor to return to its original level after being reduced or triggered. It is known for shaping how a sound fades or recovers over time.

In synthesis, release time refers to the final stage of an envelope, determining how long a sound continues after a key is released. In dynamics processing, such as compression, it controls how quickly the gain reduction returns to normal after the signal drops below the threshold.

Release Time emphasizes the tail and decay of a sound, influencing whether it ends abruptly or gradually fades out.

Short release times create quick, tight endings, while longer release times produce smoother, more natural decays.

Today, Release Time is an essential parameter in sound design, mixing, and production, valued for its role in shaping dynamics, sustain, and the overall feel of audio.