http://www.srf.ch/radio-srf-3/player
Most regional stations in Switzerland will use a mix of high German and Swiss German.
This is a comprehensive list of radio stations in Germany and Austria - I'm sure something will fit the bill!
My only gripe is that SrF2 seem to play the same pieces rather too frequently. How a classical station - with centuries of great music from which to choose - can have a limited playlist is beyond me.
http://www.swr3.de/startpage/-/id=47...kol/index.html
Good music, great people, funny stories ....
I live in the hills above Aarau and SWR3 was and is the radio station with the best signal strengh in that area. Without SWR3 I would not have survived the 3 years of very intensive & complicated & stressful (and successful) renovation works of my house up there. And even today - while listening to SWR3 household chores are considerably less tedious...
Proper German.....
Hmmm.......
But it's at its funniest when they don't...
Modest experience: I was pleasantly surprised that the under-40 generation speaks high German with very little dialect influence in Lörrach and Konstanz. The more rural the area, the more dialect influence there is, though. Their parents speak heavier dialect flavoured High German. Even if the southern-Badener do use heavy dialect in family, it's not as dominant in social and professional life as in Switzerland or even other parts of Germany like Bavaria. The more hand-crafter/artisan the profession, the more dialect-flavoured the daily language, of course. But I am in the process of getting closer to Germany and my kitchen builder and the painters spoke nice colloquial southern high German with me, not dialect (just some typical phonetic characteristics).
Short version: learning high German will be easier north of the border, even by a few kilometers and even if it's not the wonderful beautiful northern German I love above all.
They even have a large website dedicated to learners of German:
http://www.dw.de/learn-german/s-2469
One nice feature are the mp3 files of the news read nice and slowly for you to practise, along with a text transcription, e.g. today's news
Text:
http://www.dw.de/28062013-langsam-ge...ten/a-16913045
And read out s-l-o-w-l-y:
http://www.dw.de/popups/mediaplayer/...diaId_16913172
Deutschlandfunk is also good for learning formal high German: