I dont know what I would take. I have the same effect- Compressor from Sonar on every track. Nothing major to take off.
 
I sent you a PM. :)

vladasyn
It is just this one project, and latency is overwhelming- when I play  MIDI note on MIDI controller, I can count to 3 before I hear the sound.
 

 
When latency gets that bad, it's usually an  indication that some plugin or the synth itself has gotten into a bad state. On the rare occasions I've encountered that kind of severe latency it was usually because the CPU got overloaded due to a confluence of heavy soft synth load with a too-small ASIO buffer and/or high DPC latency. But it was always temporary and just cycling the audio engine on an off would usually take care of it.
 
But if it's so project-specific, the bottom line is that some feature of that project is causing the problem and the easiest way to troubleshoot it is to make a copy and start tearing it down one plugin/track/bus at a time until the issue goes away. If it goes away suddenly, as is likely, whatever you removed last is the culprit.
 
Sometimes you can speed the process by using a "binary" approach where you delete half the tracks and if the problem persists, you delete half of the remainder and so on. If the problem goes away at some point, you undo that deletion, and delete half of that problematic group. Keep going until you've isolated the problem child.
 
 

1.  YES, hitting E again will turn effects back on.  PLEAS PLEASE PLEASE run this test, as it will immediately indicate if there is a problem with one or more of the effects plugins.
 
2.  If you are trying to record additional parts, then you MUST pay attention to the buffer requirements for the plugins you have loaded.  For recording to work properly, you cannot have plugins that induce high latency, and you have to have an ASIO Buffer Size small enough to keep your Total Roundtrip Latency down around 10 milliseconds.  Otherwise, you will experience what you are experiencing.
 
3.  Please list exactly what plugins are present in this project, AND please list your current ASIO Buffer Size, as well as the Sonar-reported Total Roundtrip Latency.
 
Bob Bone
 

Please try disabling all your effects to see if it is caused by a look-ahead or CPU intensive effect, as brundlefly suggested in post #2.  This should only take seconds to try..
 
Have you tried this?
 
If not, then brundlefly's binary approach is a good idea.  This should only take a minute or two.  Have you tried this?
 
Which of these have you actually tried?
 
 

Sorry it took so long to test it- had to wait for everybody to go sleep before I could get to music...
 
The E trick worked! It is caused by the effects! But which once? Can not tell what causing it.
 
I have T-Racks CSR Plate and CSR Reverbs. There is option to have "Insert" presets and "Send" presents. If I am on a track, I am using Insert, right? Also turning them off is not changing the soft synth response time.
 
I disabled effects chain with Izotope Nectar, Sonitus:fx Compressor, Multiband Compressor and Reverb (old effects that came with Sonar).
 
Disabled Pitch Shifter and Akustix- no improvement.
 
I have 16 instances of Sonitus:fx Compressor. I guess I will go ahead and disable (not delete but turn the button off) all of them and see if it helps... How do I lessen these compressors? Should I put one instance on the BUS and then assign those 16 tracks that using it to the BUS? I used to do it but it was long time ago. in fact- I realized that I did it on this song because I see compressor on the bus. I can delete those Compressors, and assign individual track outputs to the BUS, and BUS out to Master. Is it right way to do it?
 
Ok, so I turned off all effects but this time not by E, but by pressing blue power button on effect. And Latency is still there. I dont get it. So E is a different operation than turning effects off one at a time?
 
Also- now what? Pressing E makes latency go away, so it caused by effects, yet turning effects off does not fix it. I do not want to delete all effects. Any thoughts will be appreciated. Thank you.  

It could be that pressing the little blue button only disables it, but it could still be processing, kinda like the mute button works.
I would look for it via either freezing the track OR removing them one-by-one, testing and then undo the delete.
 
I had a similar issue, and I ended up tracking it down to R-Mix.
If I had to make a complete SWAG, I would thing it could be Izotope Nectar, since it would be the kind of thing that needs quite a bit of look-ahead.
 
EDIT:  And I also checked out Akustix.  This could be the culprit as well.  It's trying to some spectral noise processing, which sounds like it would take quite a bit of time latency-wise as well.

Found it. It is Izotope Breath control. So I guess I can only use it after everything is done?
 
You, guys, awesome! Would not find it without you! Thank you.

Yeah - the nature of what some effects do introduces massive latency, and this is the downside of beginning the mix process and adding such effects, then having to flip back into the recording process.
 
Learning which effects can produce this situation is part of the 'art' of audio engineering - you learn and remember, and over time build up a good awareness, and this is just part of that process.
 
I am VERY pleased you stuck with this and were receptive enough to work through the frustration of it all.
 
I would recommend that you create a document on your system that lists plugins that cause these latency issues during recording, adding to it as you discover additional ones, so that you can more quickly avoid using them when doing initial tracking, and also know to temporarily swap them out if you have to go back for additional tracking after beginning the mixing process.
 
Bob Bone