What is Attack Time?

Attack Time is the amount of time it takes for a sound or audio processor to reach its full level after being triggered. It is known for shaping how quickly a sound begins.

In synthesis, attack time refers to the first stage of an envelope, determining how fast a sound rises from silence to its peak level. In dynamics processing, such as compression, it controls how quickly the processor reacts to incoming signals.

Attack Time emphasizes the character of a sound’s onset, influencing whether it feels sharp and punchy or smooth and gradual.

Short attack times create immediate, percussive impacts, while longer attack times produce softer, more gradual entrances.

Today, Attack Time is an essential parameter in sound design, mixing, and production, valued for its role in shaping dynamics, articulation, and overall sonic character.