From the video I uploaded earlier, the CombFilter was much less effective as a result of the modifications on the LPF.

The result is as follows:

*The big noise on the right channel occurred from the mobile phone, by unknown reason.

I determined that the cause was a mismatch in the range set for the Depth parameter, so I took countermeasures at the point where the address to read the LFO wavetable is generated.

The Depth setting is a little difficult to use, so the structure of this area needs to be worked out. There is a possibility that the Depth range setting set after the switch may be causing problems.

As a result of refining the structure around the Depth parameter, I was able to confirm improved operability.

Nevertheless, the LPF has become less manageable than before the refurbishment, so I would like to find a compromise if possible.

After trial and error, the offset value, which had been set excessively, was changed to 1/10 to improve operability.