Choose your preferred sound card from the drop down menu.
Now we choose which kind of driver you need.
If you are sure your sound card supports ‘ASIO’ then choose that option.
If it doesn’t then try ‘WDM’
If you experience problems then choose ‘MME’
Make sure you click the ‘Ok’ button.
When finished Sonar will prompt you to restart.
Restart Sonar and the changes will be applied.
If you have conflicts. you can try disabling your wireless connection – if you have one
Also if you have a firewire, usb or pci sound card and the onboard sound card is setting up as default you can disable the onboard in sonar,