I have this one project that all of the sudden, as of yesterday, is recording my vocal slower. At first I thought I was totally losing my musicality! But finally counted with the drum beat and when I played it back each number was falling substantially off the beat, and  I think it was getting progressively slower as ti went on. I tried changing the source for the clock but that didn't work.  Oh and I tried opening a new project and everything synced just fine in the new project.

Can anyone tell me what 's making this happen and what to do about? ....Please!

It could be a sample rate mismatch. Check the properties of the audio in that project. If you have your sound card as your only sound card and Windows uses it for its own use that could change the sample rate setup for Sonar.  

I read in passing that SONAR now allows different sample rates for audio within the same project. I cannot find where this is written anywhere official though; can anyone confirm/deny this and provide a link to when/where this was introduced (if applicable)?

mettelus
I read in passing that SONAR now allows different sample rates for audio within the same project. I cannot find where this is written anywhere official though; can anyone confirm/deny this and provide a link to when/where this was introduced (if applicable)?

I think you're right but I don't know what else could cause the problem. 

mettelus
I read in passing that SONAR now allows different sample rates for audio within the same project.

It has for a long time, SONAR converts incoming audio to the project sample rate. So I don't think anything new is causing the problem...maybe look at the Tempo View and see if it was modified somehow?

 

Anderton

mettelus
I read in passing that SONAR now allows different sample rates for audio within the same project.

It has for a long time, SONAR converts incoming audio to the project sample rate. So I don't think anything new is causing the problem...maybe look at the Tempo View and see if it was modified somehow?

I don't think that's it. I have a guitar track already recorded. It plays back correctly with the midi tracks. The part of the track that I already recorded plays back correctly. It's just the new recordings on that track that are off. I'm going try creating a new audio track and see what happens with that.

So I looked at the tempo map and it doesn't change tempo. I tried recording a new track and it was also off. I again opened up a new project and recorded me counting with the metronome and it's perfectly in sync. It's only off on anything new recording I try to record in my project. Any ideas?
 

NEW FACT- It only happens when I'm using auto punch!
 

That's a crazy one...
 
Sorry I have no suggestions, but I want to try auto punch when next I am in my studio and I'm curious whether I can reproduce this.
 
Just to confirm:
 
1) It really does get progressively worse? It's not just a fixed offset? (48k/44k1 = 1.09, roughly 10% slip)
 
2) Everything was recorded with the same setup? Or were some tracks delivered from another studio?
 

I use auto punch all the time, from dropping in words to recording entire verses, without incident...I tend to doubt that auto punch itself is the problem.
 
I'm assuming none of the clips are groove clips...