The purpose of this paper was to explore how children may perceive sound effects in the specially written radio saga made for this paper Ninjas Detektivbyrå (Ninja’s Detective firm). If sound effects in any way can contribute to children perceiving more details, if specific sound effects may bestow in creating a more monogamous distinction of signs and whether the dramaturgical structure possibly can become clearer when combining dialog with sound effects. The study was made possible with the help of two groups of children whom each listened to a version of the stimulus material, one with sound effects and the other one without sound effects, and by qualitative interviews relaying on theories regarding communication, classical dramaturgy and research on how sound effects impact on audience. This paper shows that the participants who were exposed to sound effects may have been more keen to perceiving details, understood signs more distinctly and could account for greater parts of the story in comparison to participants from the group that weren’t exposed to sound effects. / <p>Validerat; 20150630 (global_studentproject_submitter)</p>