In Cubase 5 there is a function to export an audio track as a XML file.
Are you sure this is not a
musicXML (notation) file from a midi source?
Or are you talking about xml scripts to save settings for devices?
"Exporting plug-in information files
You can also save plug-in information as an .xml file, e.g.
for archiving purposes or troubleshooting. The Export function
is available for VST, MIDI and Audio Codec plug-ins.
The Plug-in Information file contains information on the
currently installed/available plug-ins, their version, vendor,
etc.
Importing and exporting remote setups
The Export button in the top right corner of the Generic
Remote Setup window allows you to export the current
setup, including the Control configuration (the table at the
top) and all banks. The setup is saved as a file (with the file
extension “.xml”)."
In either case, the information is not audio data, and although xml is a standard, the way that those scripts would be interpreted by a DAW would be proprietary. To the best of my knowledge Sonar has no way to interpret either the Cubase xml scripts or musicxml.
post edited by slartabartfast - 2010/02/23 15:16:47