sidechain "multi-band compression" using NS effects?
hi all - a newbie mixing question here. I have a bass part with sounds across the whole frequency spectrum ( lows and highs) and I would like to sidechain-compress a bit for my kick drum to come through - but I've read that the best way to do this would be to only duck the lower frequencies (those which clash with the kick) rather than to duck the whole bass sound every time. That makes sense to me, as I can hear the higher frequencies in the bass part doing some unpleasant pumping effect when I use a sidechain compressor on the whole track.
My question is how to do this in NS2 without using external AUs (such as multi-band compressors) - because external AUs cannot be sidechained/automated ?
One idea could be to duplicate my bass sound into two tracks, one with a steep low pass filter and the other with a steep high pass filter, and only add the sidechain compression on the track with the low frequencies in it. But is there a simpler, more elegant way?
I have the same question for some wide-frequency spectrum pad synths - can I sidechain-compress only the lower frequencies of them, or do I have to sidechain the whole thing ( leading to pumping effect that I don't always want).
thanks in advance for your tech-knowledge :-)