attack

sound

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July 20, 2026

Quick Summary

In music, "attack" refers to the initial moments of a sound, specifically the changes that occur before it reaches its steady intensity. This is one of three components that define a sound's "envelope," alongside sustain (the steady part) and decay (how it fades). The attack is crucial for timbre, the unique quality of a sound, and each musical instrument has a characteristic attack pattern. The speed and complexity of these initial changes make them a subject of research in understanding musical tone. Merriam-Webster also defines "attack" in music as the manner of beginning a musical tone or phrase.12

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envelope
attack, sustain, and decay of a sound. Attack transients consist of changes occurring before the sound reaches its steady-state intensity. Sustain refers to the steady state of a sound at its maximum intensity, and decay is the rate at which it fades to silence. In…
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attack, sustain, and decay of a sound. Attack transients consist of changes occurring before the sound reaches its steady-state intensity. Sustain refers to the steady state of a sound at its maximum intensity, and decay is the rate at which it fades to silence. In…
Read More