Department of Computational Perception
Department of
Computational Perception
Johannes Kepler Universität Linz

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The Intelligent iPod

With the intelligent iPod we present an approach that offers the user a convenient and meaningful way to access her music on an iPod. By exploiting information on acoustic similarity and community-based music labels, a music collection is automatically structured and described to allow for easy orientation and navigation within the collection.

The complete collection is arranged along a circular playlist path such that similar sounding pieces are grouped together. As a consequence, regions of musical styles emerge.

Intelligent iPod The different elements of the browsing interface. A continuous color bar shows six main music styles discovered for a collection of 1,440 songs (2). The bar can be slid to the left or to the right using the scroll wheel (4). Additional information about a subregion is displayed in a textfield (1) and updated while moving the color bar. To start playing the music of a specific area, one can simply scroll to that area and press the select button (5). The currently played song is displayed in (3).

Source Code

Please note, that the source code to generate the scrollable colorbar and corresponding playlist is missing. Unfortunately we can not put the source code for this online anytime soon.


Schnitzer D., Pohle, T., Knees, P. and Widmer, G. (2007).
One-Touch Access to Music on Mobile Devices. In Proceedings of the 6th International Conference on Mobile and Ubiquitous Multimedia (MUM 2007), Oulu, Finland. (received Best Student Paper Award)

Pohle, T., Knees, P., Schedl, M., Pampalk, E., and Widmer, G. (2007).

"Reinventing The Wheel": A Novel Approach to Music Player Interfaces. IEEE Transactions on Multimedia 9(3), 567-575.

Schedl, M., Pohle, T., Knees, P., and Widmer, G. (2006).
Assigning and Visualizing Music Genres by Web-based Co-occurrence Analysis. In Proceedings of the 7th International Conference on Music Information Retrieval (ISMIR 2006), Victoria, Canada.

Knees, P., Pohle, T., Schedl, M., and Widmer, G. (2006).
Combining Audio-based Similarity with Web-based Data to Accelerate Automatic Music Playlist Generation. In Proceedings of the 8th ACM SIGMM International Workshop on Multimedia Information Retrieval (MIR'06), Santa Barbara, California, USA, October 2006

Pohle, T., Pampalk, E., and Widmer, G. (2005).
Generating Similarity-based Playlists Using Traveling Salesman Algorithms. In Proceedings of the 8th International Conference on Digital Audio Effects (DAFx 2005), Madrid, Spain.

Media Coverage

last edited by pk at 2008-02-14