The term “bumper” and its synonyms “opener” or “showopener” means a short audio logo without a following music bed in the context of radio broadcasting. It is played regularly to open a broadcast or rubric. Through the bumper the current program is being closed on the one hand, and on the other hand, it helps getting back the attention of the viewers by its recognition value. Thus bumpers help structuring the program flow.
Typical applications for bumpers are newscasts, traffic message channel and weather.