Virtual Instruments Going Out Of Tune

Do you have any controllers hooked up that might send pitch or modulation information?

I've seen a pitch wheel be out of calibration, causing it to not be zeroed when released. You can check for this quickly by recording some pitch wheel movements and examining in the PRV to make sure the last value is zero after you'd released it.

I've had this as an on-going issue with Native Maschine. I'm finding that the pitch of the various expansion samples arbitrarily drop around a 3rd periodically...and then jump back up at random times in playback of the track...that's in Sonar. I've only had this happen with Maschine, so I don't know whether this is related to your issue.
 
I've had several chats with their tech support to no avail, short of sending the actual Maschine project. They wanted me to use Midi-Ox to check out whether there was data coming from my Kontrol S88 but there was nothing registered to indicate this. 
 
They've just released an update for Maschine so I'll be testing it to see whether this is still occurring.

bitflipper
I've seen a pitch wheel be out of calibration, causing it to not be zeroed when released. You can check for this quickly by recording some pitch wheel movements and examining in the PRV to make sure the last value is zero after you'd released it.

robert_e_bone
I have had crappy pots on midi controllers start generating spurious midi data that would cause pitch changes, so once determining which one was causing it, I disabled pitch bend entirely on that controller.  Over time, some cheaper components used to keep manufacturing costs down just randomly start failing.
 
I also have had pitch issues on certain synth presets, such as with some Reaktor ensembles, where the zero all controllers setting in Sonar Preferences was ending up setting pitch down by a whole step, until I removed the check from that parameter.
 
Hope you find the demons causing your tuning issues.
 
Bob Bone
 

Ok, as 'bitflipper' suggested, I recorded some pitch wheel and modulation changes into a track and they both appeared to be returning to zero/center OK.
 
However, as I was writing this forum message I noticed a kind of 'spiking' on the input of the midi tracks to which my Q61 was connected, so Im wondering if perhaps this would be enough to cause the pitch changes and problems described earlier.

Fabio Rubato
I've had this as an on-going issue with Native Maschine. I'm finding that the pitch of the various expansion samples arbitrarily drop around a 3rd periodically...and then jump back up at random times in playback of the track...that's in Sonar. I've only had this happen with Maschine, so I don't know whether this is related to your issue.
 
I've had several chats with their tech support to no avail, short of sending the actual Maschine project. They wanted me to use Midi-Ox to check out whether there was data coming from my Kontrol S88 but there was nothing registered to indicate this. 
 
They've just released an update for Maschine so I'll be testing it to see whether this is still occurring.

As much as I love the sounds of the Native Instruments, Ive always found them to be awkward and give me headaches and problems with their workings over the years.
 
Ill investigate further and report back. Thanks to everyone for chiming in.
Cheers
Lee

After recording MIDI look at the event list and see if there are any spurious records. My old A-PRO 800 started generating spurious cc messages (dirty pots ??) These could cause all sorts of issues depending on the VSTi.

Deleting the cc records would correct the issue but ultimately I had to replace the controller.

HELP!  2 Problems with my DX synths!
 
My Dx instruments are out tune and distorted and I cannot get them to sound like the preset they are supposed to sound like.  This does not happen on the VST2 instruments.  

My TTS-1 and Roland Groove Synth, sound horrible, right from the start.  Like the oscillators are garbled and not even close to being in tune with one another.  When I change Presets on the TTS-1, I can tell it's loading a different sound, but it's still miserably distorted.  When I move my MIDI Controller to the Laptop loaded identically, the sounds are fine.  I move it back to the Desktop PC, and reboot, and restart Sonar, and the sounds load "out of tune" and not resembling the presets (i.e. piano, or Square wave).

I immediately load Addictive Keys Piano, and it's fine.  Or U-he Repro-5 synth, and it's fine.
 
It makes me think that the Samples for TTS-1 and Roland Groove Synth, got mangled during installation, but I know that's not right.  I compare the files with those on the Laptop, and they are identical.
 
Something weird is affecting my DX instruments.
 
 
Next, on both my desktop and Laptop, the DX Pentagon I synth cannot load because I'm told it "May have failed installation".  On both machines??? And when I search my drives, the folders, DLL, and presets exist.
 
Anybody?
 
Windows 7 Pro 64-bit
Sonar X3 Producer


EDIT: Searching the forums, I found the registry hack fix to get PENTAGON I working.

I still need an answer regarding TTS-1 and Roland Groove Synth for loading sounds way out of tune and not resembling the instrument preset they are supposed to be.

Toddskins
HELP!  2 Problems with my DX synths!
 
My Dx instruments are out tune and distorted and I cannot get them to sound like the preset they are supposed to sound like.  This does not happen on the VST2 instruments.  

My TTS-1 and Roland Groove Synth, sound horrible, right from the start.  Like the oscillators are garbled and not even close to being in tune with one another.  When I change Presets on the TTS-1, I can tell it's loading a different sound, but it's still miserably distorted.  
***************************SNIP*************************

Have you changed the default sample rate in SONAR recently? TTS-1 will do this at rates above, I believe, 48khz. Maybe Groove Synth does, too. There's a setting in TTS-1 to correct the problem, but it's not saved with the project, so you have to reset it every time you open the project, on every instance of the synth. Try this:
1. Open TTS-1.
2. Click 'System'.
3. Click 'Options'.
4. Click the 'Options' tab.
5. Enable 'Light Load Mode'.
 
Or just reduce your sample rate to 44.1. If that doesn't solve your problem, you should start a new thread with your question. Give it a clear title and you'll get more help from people who know a lot more than I do.

I've had the pitch problem with various synths over the last couple of years or so.  I disabled the pitch wheel in preferences/midi/playback and recording. That seemed to cure my problems. Of course, I can't use the pitch wheel now in situations where I might need it.  OK for the moment anyway.

I had similar issue with OTS songwriter library. I tried to include bg strumming guitars with it but it was out tune and unusable. Not sure for 100% but I think I have not any MIDI controller connected when trying it.