(We cannot see the peak in EY, so I didn't perform it)
I implemented those filters in P4 NBDAMP
Fig.1. and Fig.2. showed the transfer function for IY and EX.
Fig.3. showed the spectrum of DARM in the state of the INCREASING_LAS_POWER (red)with and (blue)without damping filters.
Actually, the damping of peaks can be succeeded by checking the spectrum of DARM and DHARD_P, but the spectrum around the peaks significantly increased.
So, we need to perform more narrow band filter and/or reducing the gain.
