Hey, I am running X3c and recorded 12 simultaneous tracks this weekend. I Recorded once, and muted those tracks on Friday night. Saturday I recorded starting from time 0 and recorded more audio. I paused at the end of that audio for the next few takes. The audio that I recorded first Saturday morning that is essentially a take lane with the Friday take is slower and tuned down. It's not an octave, but seems a few steps down. Any ideas how to best correct this audio? Do you think recording over a previous take of 12 simultaneous tracks could have caused this?
Thanks!

Did you change the project's samplerate? That can cause speed up/slowdown and pitch change.

I'm pretty sure nothing changed. It's weird, the other takes that day without closing Sonar are normal pitch.

Try changing the project setting to see if it brings the original tracks back in tune. It would suck if that's the case though considering you already recorded your new tracks. I had this problem with a very old project of mine and I couldn't figure out why eeeeveryyyythiiiingg waaaass sooooo sloooooowwww. Fortunately the forum saved my arse as usual. lol
 
Sorry... didn't read the last bit about other tracks from the same session being right. That is weird. Not sure what to tell ya there.

I will try it tonight! Luckily this isn't a really important recording. Just for fun :)

Hope you get it working. Cheers.

Thanks Beepster!

Sounds like your audio interface switched to 48kHz for the second recording session, and is now back at 44.1kHz, matching the project sample rate. Normally, SONAR would not have let you record with the project rate not matching the interface's clock rate, but it can happen.
 
You can try deleting the tracks from the project, and re-importing the audio files, but if their headers are mis-identifying them as 44.1kHz files (because that's what SONAR wrote when it saved them), that may not do the trick and you'll need to find a third-party audio app that can re-write the headers to match the actual sample rate (48kHz). Then SONAR will convert them to 44.1kHz on import. The free R8Brain might be able to do it.

Thanks Dave! I'll try that!

One of the biggest culprits causing this problem is allowing your audio device to run Windows sound. If you record at 48khz sample rate then Windows uses your audio device and will switch it back to 44.1khz because that's what windows sounds are 44.1khz at 16bit.

Hope that's your problem as it's an easy fix.