Clear Squeezebox title when player is stopped

I recently switch to Openhab 2. Is there anyway to clear out the title and artist items when the player is stopped?

Here are my current item configurations:

String sb_title "Title [%s]"     { channel="squeezebox:squeezeboxplayer:E8970AF3-B863-4EF9-9E78-3881603CA0E9:ca6bdb5f928f:title" }

String sb_artist "Artist [%s]"     { channel="squeezebox:squeezeboxplayer:E8970AF3-B863-4EF9-9E78-3881603CA0E9:ca6bdb5f928f:artist" }

As the values are set by the Binding, no you can’t.
But you can hide the Items using the visibility parameter.
Assuming your player item is named “MyPlayer”, you’d need to add this to your sitemaps item definition:

Text item=sb_title visibility=[MyPlayer==PLAY]

This way the items will only be shown when the player is actually playing something.