Attack (Compressor)
Definition
The time it takes for a compressor or limiter to reach its full specified gain reduction after a signal exceeds the threshold. Not the moment it starts acting, but how long it takes to complete its response — a critical distinction that shapes the transient character of the processed sound.
In Simple Terms
How fast a compressor grabs onto a loud sound. Slow attack lets the initial punch through — great for keeping drums snappy. Fast attack catches everything — useful for taming vocals, but can kill the life of a sound.
In Practice
A slow attack on a snare drum compressor allows the initial crack to pass unaffected, preserving punch before the body of the hit is controlled. A fast attack on a vocal tames aggressive consonants but can sound unnatural if overdone.
Common Confusion
Faster attack is not always better. Attack time shapes the tonal and transient character of a sound as much as it controls dynamics.