First of all, to save everyone time and bandwidth writing posts about how this can't possibly work, this is a really stupid idea. There are plenty of other ways to accomplish the same result, and really, it all comes down to writing a better chorus anyway. No one in their right mind would sit down with a calculator and pretend to do things that have musical relevance. In fact, I feel kind of dirty and guilty just posting this, so I apologize in advance and accept full responsibility for thinking up something this dumb. So, there's nothing to see here; kindly move along. Thank you.
[Okay, now only the geeks and the terminally curious are left...welcome, have a seat...get out your calculators, you'll need them.]So I was working on this song that had a shaker and tambourine part, panned left and right of center. The rest of the mix was fairly dense, and it seemed like I just couldn't get a good mix with the percussion. If I mixed it low, the two parts got lost and the song lost some drive. If I mixed them high, they stuck out and didn't integrate well with the rest of the track. I could not find a "split the difference" setting where they had enough level to drive the song but didn't sound overbearing.
I tried a bunch of tactics, most involving dynamics (more level while being less spiky - close) and EQ. Unlike the notch filtering, what I wanted was for the parts to be a little more prominent, not less. I thought what the heck, so I reversed the notch filtering to create slight peaks. That didn't work.
To make a long story short and not dwell on the other failed attempts, I added a Sonitus delay and set the delays to correspond to the song's key by calculating the period. The two delay lines were tuned an octave apart. For example if 3.0 ms produced the right pitch, the other delay was set to 6.0 ms. I didn't apply any feedback.
Mixing the delayed sound with the dry imparted a sense of pitch and with a
very subtle mix, the percussion parts blended in with the melodic instruments better. It was easier to find a middle ground between too low and too high. I also found I needed to do this only with the shaker, but this also helped differentiate it a bit more from the tambourine so the two parts were more distinct in the mix.
Again, like the notch thing, this is not a panacea but another tool that at least in this case, solved a problem. I haven't tried it on anything else yet, but assume it's applicable mostly to unpitched sounds unless you're into some kind of special effect. It might work well with soft cymbal hits or something...but as with my other tips, I'm putting this out there before I get too far along to see if the Cakewalk Forum Brain Trust comes up with any novel applications.