I tried using the LP EQ (not the older LP-64, but the newer one) on the master bus, and as soon as I inserted it I noticed that my AD drums had over half the hits become inaudible. I raised my buffer size from 256 to 512 (both in Sonar and on my RME Fireface), and some missing hits returned, but not all - still some missing. Tried buffer size 1024 and still the odd missing sample... As soon as I took the LP EQ off the master bus everything was fine again.
 
CPU usage reading as only about 7% for whole project. Not a big project  - actually just a demo project trying out different plugins, only a few tracks. I use AD drums in all my projects requiring drums, never a problem. I create much larger projects without a problem. I never go over 256 buffer size unless doing huge orchestral projects.
 
Anyone else had similar issues with this plugin?

http://forum.cakewalk.com/MIDI-playback-has-missing-notes-m2292667.aspx
 

FWIW i had the same problem, until disabling that plugin, all works fine now.

I had the same problem. LP EQ and LP MB can introduce latency. The issue is easily fixed by increasing the midi buffer size.

And don't use it on every channel. That's not what it was designed for.

Bristol_Jonesey
And don't use it on every channel. That's not what it was designed for.

Yes, this is a good point. LPEQ & LPMB are really intended as mix/master tools rather than general tracking tools.

I find them good to work with although a bit intensive, perhaps a minimum phase option could be added later to lighten the load or indeed does it do this already. If you go into the Expert settings and turn the mode to Non-Linear that should save CPU cycles.
 
One instance of LP EQ cost around 1.x% audio time in non-linear mode. In High Linear it was only marginally higher by about 0.4%.
 
LP MB cost around 4.6% here in non-linear mode with High Linear mode being around 6.5% so definitely not one to throw on tracks casually unless you are running some sort of super hybrid studio DAW workstation.
 
By the way, I am using an Athlon x6 3200Mhz, 8GB of PC1600 RAM and a Focusrite ASIO driver.
 
 

I put it on the master bus only. Only one instance. No spike in CPU.
 
I raised buffers as described in original post. No effect.
 
It was only a small demo file of a few tracks.
 
Like I said, I have run much larger projects on my machine with lots of plugins (most third party) with no problem.
 
It is simply a case of: Addictive Drums hums along fine; I put the LP EQ on the master bus and samples go missing; I take LP off the bus and everything’s fine.

Dilaco1
I put it on the master bus only. Only one instance. No spike in CPU.
 
I raised buffers as described in original post. No effect.
 
It was only a small demo file of a few tracks.
 
Like I said, I have run much larger projects on my machine with lots of plugins (most third party) with no problem.
 
It is simply a case of: Addictive Drums hums along fine; I put the LP EQ on the master bus and samples go missing; I take LP off the bus and everything’s fine.

But did you raise your midi buffer lookahead to 500ms???
Not the same as audio buffers.

Since the LP EQ has about 490ms of delay I think you need to have your MIDI prepare buffers set to at least twice that in order to insure your soft synths don't miss notes.  So I think 1000ms would be the lowest I'd go with (I personally use 2500 but that is because I got tired of messing with it).  And again this isn't the ASIO buffer settings or anything to do with the audio device you are using.  Set it the preferences under MIDI->Playback and Recording.  "Prepare Using XXXXX Millisecond Buffers".