When I send white noise into a biquad Peak/Notch filter, obviously rms and peak will change. Anybody has a formula for calculating what gain-compensation will be neccessary? the most irritating (Although kind of logical) thing is, that also if a notch filter is applied peak will rise and attenuation is needed... Most important for me would be to estimate the compensation for the peak value, so I can prevent clipping.
(compression, limiting etc left aside!)