gain property
The gain property of the BiquadFilterNode is an
a-rate
AudioParam — a double representing the
gain used in the current filtering
algorithm.
When its value is positive, it represents a real gain; when negative, it represents an attenuation.
It is expressed in dB, has a default value of 0, and can take a value in
a nominal range of -40 to 40.
Implementation
AudioParam get gain;