Talk radio is the most underrated category in any streaming directory, because the obvious use case, hearing what a country is arguing about today, is something no music station can offer.
The stations here divide into public-service broadcasters, commercial news stations, business and financial services, religious teaching stations and community talk. They behave very differently. Public broadcasters run scheduled bulletins and long-form documentary; commercial news runs rolling headlines with frequent advertising; business stations run market coverage that is only interesting during trading hours in their own timezone.
Speech has one enormous practical advantage over music: it compresses extremely well. The human voice occupies a narrow frequency range and an encoder can represent it faithfully at bitrates that would ruin music. A talk station at 32 or 48 kbps sounds essentially perfect, costs 14 to 21 MB an hour, and can be left running all day on a mobile connection without noticeable cost. Where you find a talk station broadcasting at 192 or 256 kbps, as a few in this directory do, the extra bits buy clarity in studio ambience and crosstalk rather than anything you strictly need.
If you are using talk radio to learn a language, the useful thing to know is that news bulletins are the hardest part of the schedule, written to be dense and read fast. Phone-ins, sport commentary and morning shows are considerably easier to follow.
