Although digital processes long ago became standard in radio studios and production sectors, the digitalisation of radio broadcasting remains a work in progress.
Digital radio is currently broadcast by means of DAB/DMB, DVB-S, DRM, and the Internet. These technologies allow listeners to enjoy established radio programmes and new supplementary services in CD quality. Innovations in audio coding even facilitate the transmission of 5.1 surround sound – for superior sound at home or on the go in your car. Yet digital radio offers even more: in addition to audio data, programme-associated services can also be broadcast via multiplex signal.