I just upgraded my Live 6 tot Live 7 and was playing around with it.
I haven't changed anything to my setup, but I have a lot of noise, crackling when I play around with the new sidechaining feature.
Old sets play fine though, where I use non-native sidechaining vsts. Live 6 plays fine, same settings, same drivers et cetera.
My studio pc is brandnew: Core 2 Duo 3,0 GHz with 4 gigs, Windows XP SP3.
Soundcard is the ESI ESP1010 with latest drivers, ASIO 2.0. The CPU never goes over 10 percent, even during crackling. I'm pretty sure it's not a CPU issue.
I noticed that for instance Albino crackles just by playing pads (no sidechaining or anything); this was/is no problem in 6 either.
I've played around with the buffer but to no avail. It played fine with 6, why must upgrades always be so effing problematic?
I really like the way side chaining is handled in Live 7, but with crackling it's unusable...