Transient
Definition
A short-duration, high-energy spike in a waveform. Transients are not limited to the beginning of a sound — each percussive event within a signal has its own transient. They define the initial impact of rhythmic elements and are critical in determining how a mix feels — punchy and present, or soft and controlled.
In Simple Terms
The sharp, initial snap of a sound — the click of a drumstick, the pluck of a guitar string, the consonant of a sung word. Transients give music its punch and rhythm. Compress them too much and everything sounds flat.
In Practice
The sharp transient of a snare hit gives it crack and presence in a mix. Heavy compression with a fast attack reduces this transient, resulting in a duller, less impactful sound.
Common Confusion
Transients are not limited to the start of a recording. Every kick hit, every guitar strum, every consonant in a vocal contains transient energy.