LIA @ MediaEval 2013 MusiClef Task: A Combined Thematic and Acoustic Approach

In this paper, we describe the LIA system proposed for the MediaEval 2013 Soundtrack task. The aim is to predict the most suitable soundtrack from a list of candidate songs, given a TV commercial. The organizers provide a development dataset including multimedia features. The initial assumption of the proposed system is that commercials which sell the same type of product, also share the same music rhythm. A two-fold system is proposed to provide a music for a commercial: nd commercials with close subjects in order to determine the mean rhythm of this subset, and then extract from the candidate songs the music which better correspond to this mean rhythm.