DynamicsCompressorNode: ratio 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 ratio property of the DynamicsCompressorNode interface Is a k-rate AudioParam representing the amount of change, in dB, needed in the input for a 1 dB change in the output.
The ratio property's default value is 12 and it can be set between 1 and 20.

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.ratio.value = 12;
See BaseAudioContext.createDynamicsCompressor() for more complete example code.
Specifications
| Specification |
|---|
| Web Audio API> # dom-dynamicscompressornode-ratio> |
Browser compatibility
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