Jörn Loviscach

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Musicians, sound engineers, and foley artists face the challenge of finding appropriate sounds in vast collections containing thousands of audio files. Imprecise naming and tagging forces users to review dozens of files in order to pick the right sound. Acoustic matching is not necessarily helpful here as it needs a sound exemplar to match with and may miss(More)
The look of a non-transparent material is determined by its bidirectional reflection distribution function (BRDF). To design 3-D objects for example for games or animation films thus includes to design BRDFs. However, as functions defined on a four-dimensional domain, these form a vast space that is very difficult to explore interactively. Typically, the(More)
The anisotropic filtering offered by current graphics hardware can be employed to apply motion blur to textures. The solution proposed here uses a standard texture together with a vertex and a pixel shader acting on a mesh with augmented vertex data. Our method generalizes the usual spatial anisotropic MIP mapping to also include temporal effects. It(More)
Nowadays, a personal music collection may comprise thousands of MP3 files. Visualization can help the user to gain an overview and to find similar songs inside so large a set. We describe a method to create icons from audio files in such a way that songs which the user considers similar receive similar icons. This allows visual data mining in standard(More)
There is a noticeable absence of gestures—be they mouse-based or (multi-)touch-based—in mainstream digital audio workstation (DAW) software. As an example for such a gesture consider a clockwise O drawn with the finger to increase a value of a parameter. The increasing availability of devices such as smartphones, tablet computers and touchscreen displays(More)
Painting in a 3D geobrowser is interesting both for artistic uses such as virtual graffiti and for commercial applications such as architectural sketches. It <i>seems</i> straightforward to turn Google Earth into a 3D painting tool: Store the 3D mouse data that the software returns and construct polylines from them. However, this approach has two vexing(More)
Numerous techniques support finding sounds that are acoustically similar to a given one. It is hard, however, to find a sound to start the similarity search with. Inspired by systems for image search that allow drawing the shape to be found, we address quick input for audio retrieval. In our system, the user literally sketches a sound effect, placing curved(More)