whats the correct setting for recording in edit-preferences-audio in X1??

Depends on what audio device you have. 

Its trial and error JPPG. It all depends on your sound card drivers, your sonar project, the track count, the plugin count,soft synths, your PC, your sample rate and some other variables come into play. 

There are an awful lot of settings in preferences that relate to recording. Which ones in particular? Having said that, the only "correct" settings  are the ones that work for you. I'm not being flippant, just there are no "correct" settings. Each set up is different.

List your audio interface and computer specs and then a few of us can probably give you a starting point...

The starting point should be the lowest possible settings, no matter what card and pc you have. 

I would just start at the lowest settings for the ASIO driver and move up in small increments. do the same with the WDM driver mode and then see what works best for you
Cj

I would suggest setting your audio interface to use a Sample Rate of 44.1, and an ASIO Buffer Size of 128.

Set the default audio device in Windows to be your audio interface.

Fire up Sonar, and:

1.  Go into Preferences>Playback and Recording, set Driver Mode to ASIO, then click Apply.
2.  Now, Go into Preferences>Audio>Device Settings, and set Sample Rate at 44.1 - it must always match the setting you have for your audio interface.
2.  Go to Preferences>File>Audio Data and set the Record Bit Depth to 16 - for now.  (if OK at 44.1/16, you can then try to change record bit-depth to 24.  If that works, then try changing the ASIO Buffer size from 128 to 64 - if that is an option for your audio interface.  The balance between all of these is to end up with something that works well and has as low a latency as possible.
3.  Click on Apply and close on out of all of this.

There are lots of different ways to approach all of this - the above is an attempt at starting you at something that hopefully will work, and then you adjust things one at a time (Sample Rate/Buffer-Size/Record-bit-depth) until you find the best balance between performance and reliability.

Before you do any of the above, it is also advised to download and run a free program called DPC Latency Checker (not for Windows 8 though - if you have Windows 8 then download and run something called Latency Mon).  DPC Latency Checker is freeware that will test your system for latency - and will let you know if you can expect to be able to do audio streaming with no expected issues, or it will let you know that something on your system would interfere with the ability to properly process audio on your system.

Please do modify your forum profile signature to add the details of your system - look at the bottom of many of our posts and you will see examples of how we list things.   Adding that information makes it easier for folks to see what you are running at a glance, and will help the forum community be able to better guide you to solutions to posted issues/questions - without our having to keep asking you over and over again what kind of system you have, and such.

Please also note that some audio interface settings are accessed through hitting the ASIO Control Panel button in Sonar, and some are accessed through their own software - often sitting in the System Tray at the bottom right of your display monitor screen.  It is something controlled by the audio interface vendors and varies as to which work through Sonar and which instead have their own interface software for changing settings.

Bob Bone