This is a linear filter that removes DC bias from a signal. Specifically, this is a one-pole highpass filter implementing the formula
y[n] = x[n] - x[n-1] + coef * y[n-1]. The frequency response of this filter is dependent on the sample rate of the server and the calculation rate of the UGen.
The input signal.
Output will be multiplied by this value.
This value will be added to the output.