LP-64 Multiband linear phase mastering compressor/limiter latency!!!

WOW- anyone seeing some major latency issues with having the LP-64 Multiband linear phase mastering compressor/limiter added to a buss. I added it to my 13 track drum bus, and it totally crushed my system latency.

Any way around this other than adding the master effect after everything has been tracked?

Being Linear-phased this plug-in has to introduce the predictable latency (this is the result of the FIR-filters design as those are used for linear-phased filters). While being unnoticable for mixing/mastering (thanks to SONAR's Plug-in Delay Compensation) this should affect real-time recording a lot. And I don't see a reason to use it in 13 instances!! It is indeed a mastering plug designed for precise and fine tunings with least possible artefacts to the phase of the signal. Moreover, I don't know how PDC handles such numbers of plug-ins: say you have 10 tracks with a single LP-64 in each one and each instance introduces 256 samples of latency - what's the result latency in this case? Is it still 256 as all of them appears to work in parallel on each own track? Or is it 256*10=2560? Don't know for sure but the last value is definitely a huge latency.

FYI:
Linear phase means that phase of each frequency of the signal spectrum is shifted to the same amount of time (say 256 samples). If you draw the graph with Phase and Frequency on the axes, you'll see a straight line as a result: The lower the frequency is the less is its shift, the higher the frequency is the more the phase shift. That means that shift of each frequency to the same amount of time is somewhat equivalent to phase being linear increased with frequency. This is simple if you know the basic maths and physics.
FIR filters (Finite Impulse Response) introduce linear-phase shift by their nature and design and thus introducing a predictable but obligatory latency. IIR filters (Infinite Impulse Response) are in contrast introduce non-linear phase shift, i.e. each frequency is shifted to the different amount of time (samples) - analog filters are IIR-filters. And most of the usual digitals EQ use IIR-filtes as well as they are pretty easy to handle with low-CPU usage. There are some technologies that allow to create IIR filters close to being linear but still leaving some minor non-linearity. But anyway, all those popular SSL strips are indeed IIR since they were born in the analog era. So use of the linear-phase algorihms is not really a work-horse for everyday mixing on each channel. Linear phasing has its advantages in crystal and precise editing and that is especially important for master buses.

This is indeed bad news.

So far I've been mildly disappointed with my S7 PE upgrade but, I was thinking well heck at least I got 2 top quality efx (and one lame dumbpressor). I even told my wife last night that I would have been more enthusiaistic if Cake had somehow focused on making Perfect Space more CPU efficient and less buggy rather than just give us new efx. Now, it seems that the new efx aren't ready for prime time either?

That's a bummer.

best regards,
mike

That's funny :-).

I'm all for those improvements... they just don't seem like they were deep programing to me... maybe I don't know what I'm talking about.

best,
mike