Check your Deferred Procedure Call (DPC) latency using the free LatencyMon or DPCLAT (Google them). If you've recently enabled Wi-Fi on the machine, that is a notorious source of increased/spiking DPC latency.
 
 

Hmm maybe the hovercar leaked out...
Yup latencymon and don't forget to update your audio interface drivers and firmware first. Ta

Noel Borthwick [Cakewalk]
Lol did you take the engine to the body shop yet? :)
Fortunately software can't be damaged that easily - it takes a lot of abuse!

Oh, I don't know, Noel - I have certainly done unspeakable things to software through the simple act of letting a condition fall through the cracks.  (sssshhhh - kidding)  :)
 
To the poster - indeed, like Noel indicates, you cannot harm the Sonar audio engine like what you are fearing, as it is software, not itself hardware.  You could damage speakers or ears, however, with that sort of looping - it is AMAZING how fast that gets louder than loud when that happens.  Quite frightening.
 
Bob Bone
 

From a hardware perspective, you can easily run Windows through the interface directly, then just play a song on Windows Media Player. For peace of mind that would be something to check, but is more likely that you left still have another interface/SONAR setting that needs adjustment as mentioned above. I am not sure if the software router for your interface will let you "save" settings or not; but if you can, another thing to try would be to save, and restore the interface default settings to help isolate an interface setting versus a SONAR setting.
 
 

I can't believe nobody has suggested renaming AUD.INI and restarting Sonar ...

BobF
I can't believe nobody has suggested renaming AUD.INI and restarting Sonar ...

I doubt that would resolve crackling. If Sonar was just not functioning correctly then I would try it as a last resort. Troubleshooting first..

Ta.

Okay problem solved. To all those saying it was a latency setting.......you were correct. The fine folks at Sweetwater helped me out. Now I'm back in the saddle. Thanks to all those that offered advice. I'm new here, but can tell that you're a great bunch of people. Thanks again.

MickeyH

MickeyH
Could this be a result of a damaged audio engine and is it fixable or do I have to purchase a new program.
 
Thanks, MickeyH

Welcome to the forum!
As far as damaging the audio engine, keep in mind that Sonar can run pretty hot. Make sure you change the oil at regular intervals, and check your coolant level before a trip, especially on hot days.
 
(Most of the advice you get here will be better than this.)

Larry Jones

MickeyH
Could this be a result of a damaged audio engine and is it fixable or do I have to purchase a new program.
 
Thanks, MickeyH

Welcome to the forum!
As far as damaging the audio engine, keep in mind that Sonar can run pretty hot. Make sure you change the oil at regular intervals, and check your coolant level before a trip, especially on hot days.
 
(Most of the advice you get here will be better than this.)

Larry, this is one FUNNY post - thanks for almost making me inhale a chunk of egg roll down the wrong pipe.  :)
 
Bob Bone