DynamicsCompressorNode: attack property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The attack property of the DynamicsCompressorNode interface is a k-rate AudioParam representing the amount of time, in seconds, required to reduce the gain by 10 dB. It defines how quickly the signal is adapted when its volume is increased.

The attack property's default value is 0.003 and it can be set between 0 and 1.

Value

An AudioParam.

Note: Though the AudioParam returned is read-only, the value it represents is not.

Examples

js
const audioCtx = new AudioContext();
const compressor = audioCtx.createDynamicsCompressor();
compressor.attack.value = 0;

See BaseAudioContext.createDynamicsCompressor() for more complete example code.

Specifications

Specification

Web Audio API
# dom-dynamicscompressornode-attack

Browser compatibility

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This page was last modified on Jul 26, 2024 by MDN contributors.

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