An increasing number of applications include real-time audio streaming over a communication network. Well-known examples are teleconferencing, tele-presentation, Internet Radio live streams and on-demand services. In cooperation with various broadcasters, GMD provides live and on-demand audio services over the Internet. Applications are based on commercial products as well as on own software developments. This paper describes some approaches to provide a real-time audio service over the Internet, discusses problems and experiences and presents an outlook for a streaming service in the future.
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