HP/LP Filters in SlickEQ-M

[mutantdog]

Any possibility of including the HP/LP filters from Nova into a future version SlickM?

For a mastering Eq, the option of steep filter cutoffs (particularly the LP) would be a very useful addition.

[Hermetech Mastering]

I'd like to see all the filter options from Nova in Slick EQ M too, just for completeness/versatility sake, but TBH in mastering I'm usually trying to get away with the shallowest slopes I possibly can (6, 12 and 18, rarely 24 dB per octave), as they generally sound the least intrusive on program material. It's quite easy to get weird phasey stuff happening with steeper slopes, IMO, not just this plugin but in general.

[FabienTDR]

Basically what Hermetech Mastering said, steeper filters are more about sound design, there aren't many good reasons asking for anything beyond 24dB/oct when reaching the mastering stage.

[mutantdog]

In principle i agree, i try to avoid using any LP or HP filters on the master except extreme cases. That said, there have been occasions where i've tried Nova's LP at 72dB/oct around 21.5kHz just to remove anything above nyquist and found it worked well. SlickM's less steep LP curves start rolling off frequencies well into the audible range. It's a rare-use case but an option that would be welcome.

I also find myself wishing there was an extra choice in between normal and steep I, the difference between the two seems quite great.

[FabienTDR]

The LP filters use Bessel specification, so they are rather smooth. The advantage is a maximally flat phase response over the audible region.

In order to tackle the fact that they now reach "lower", SlickEQ M allows cutoff to be set up to 60kHz(!)