The “S Drive” and “Audio Server” are the same thing. All studio, news and production machines have this network location mapped to the drive letter S. This means you can use the drive on those machines just as if it were a local hard drive. For example you can browse files on the S drive through “My Computer” or through file open/save dialog boxes without having to know the network location, just select the drive letter S from the location drop down box.
If you are on a machine that doesn’t have the S drive mapped then you probably shouldn’t be accessing it. The S Drive is primarily for short to midterm audio storage and shouldn’t be used for storing documents or other files.
If you feel you need access to the S Drive and don’t already have it contact the IT Department.