Inflection

Inflection is the raising or lowering of your voice to add emphasis to certain words.  Depending on where the emphasis is effects the meaning of the sentence and what you want to project.  Radio and tv are similar in the way the announcers use inflection with the exception that radio has to add more color to draw a mental picture with their audience.  Listening to radio and watching television I find that most announcers have their own style with some being more dramatic than others and the station the represent has the ultimate say in how far they can go.  For instance, Eric Thomas on WBTV shows more inflection and excitement when he has new or different weather related phenomena.  (ex. new technological equipment, storms, etc.)