Always enough banwidth for foobar? Options

[Dirki]

Is there a way to let foobar always have so much bandwidth like it needs to stream Radio Stations? So, when a download manager (or more) is downloading all the time often when there is no bandwidth left for foobar the music coming from a Radio Stations falters for a time goes on, falters and so on. Suppose the max. bandwidth - which differs - varies from 1,2 MBit/s to 1,7 MBit/s and the download manager uses between 0 and 1,7 MBit/s, how can I foobar make to always have the bandwidth it needs to stream music flawlessly, e.g. 128 kbps from a station?

[Dirki]

OK, thank you, db1989,

Yes, no native speaker of English, actually no need to say that concerning my writing, so sorry again.

Actually, since programs like Netlimiter, none freeware, should do what I would like to have, I thought, there might be an (easy) way to make foobar doing something like this, but...yes, I understand what you are saying.

May be Netlimiter is a kind of program xnor mentions by traffic shaping, but it all seems to become a bit more complicated using such programs.

I do not have any router, eahm, just a simple modem, but I will get one soon, the modem is a "Siemens Plus".