audio envelope

In audio, an envelope describes how a sound changes over time. The most common stages of an audio envelope are known as ADSR: attack, decay, sustain, and release. While attack, decay, and release refer to time, sustain refers to volume.

In audio, an envelope describes how a sound changes over time. The most common stages of an audio envelope are known as ADSR: attack, decay, sustain, and release. While attack, decay, and release refer to time, sustain refers to volume.

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