In this demo, we present new interfaces for interactive navigation in continuous, time-based multimedia files, such as video recordings. In contrast to common techniques for multimedia skimming, our approaches enable users to interactively navigate audio files along the timeline and support time-synchronized browsing in both audio as well as visual data streams. Categories and Subject Descriptors H.5.1 [Multimedia Information Systems]: Audio input/output, Video. H.5.2. [User Interfaces]: Interaction styles. General Terms Design, Human Factors. Keywords Audio interfaces, audio skimming, multimedia browsing.