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- Holmquist, Lars Erik, et al.
(författare)
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Building Intelligent Environments with Smart-Its
- 2004
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Ingår i: IEEE Computer Graphics and Applications. - 0272-1716 .- 1558-1756. ; 24:1, s. 56-64
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Tidskriftsartikel (refereegranskat)abstract
- The development of Smart-Its for building smart environments is discussed. Smart-Its are small, self-contained, stick-on computers that attach to everyday objects. These augmented objects become soft media, enabling dynamic digital relationships with users and each other. A Smart-Its consists of a core board with a wireless transceiver to let the device communicate with other Smart-Its, plus a sensor board that gives the Smart-Its data about its sorroundings. The major advantage of the system is that it allows designers and researchers to construct responsive or intelligent environments.
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| 2. |
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| 3. |
- Hansen, Kjetil Falkenberg, 1972-, et al.
(författare)
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Analysis of a genuine scratch performance
- 2004
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Ingår i: Lecture Notes in Computer Science. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 0302-9743 .- 1611-3349. - 9783540210726 ; 2915, s. 477-478, s. 519-528
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Tidskriftsartikel (refereegranskat)abstract
- The art form of manipulating vinyl records done by disc jockeys (DJs) is called scratching, and has become very popular since its start in the seventies. Since then turntables are commonly used as expressive musical instruments in several musical genres. This phenomenon has had a serious impact on the instrument-making industry, as the sales of turntables and related equipment have boosted. Despite of this, the acoustics of scratching has been barely studied until now. In this paper, we illustrate the complexity of scratching by measuring the gestures of one DJ during a performance. The analysis of these measurements is important to consider in the design of a scratch model.
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| 4. |
- Hansen, Kjetil Falkenberg, 1972-, et al.
(författare)
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DJ scratching performance techniques : Analysis and synthesis
- 2003
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Ingår i: Proc. Stockholm Music Acoustics Conference. ; , s. 693-696
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Konferensbidrag (refereegranskat)abstract
- Scratching is a popular way of making music, turning the DJ into a musician. Normally scratching is done using a vinyl record, a turntable and a mixer. Vinyl manipulation is built up by a number of specialized techniques that have been analysed in a previous study. The present study has two main objectives. First is to better understand and model turntable scratching as performed by DJs. Second is to design a gesture controller for physical sound models, i.e. models of friction sounds. We attached sensors to a DJ equipment set-up. Then a DJ was asked to perform typical scratch gestures both isolated and in a musical context, i.e. as in a real performance. He also was asked to play with different emotions: sad, angry, happy and fearful. A model of the techniques used by the DJ was built based on the analysis of the collected data. The implementation of the model has been done in pd. The Radio Baton, with specially adapted gesture controllers, has been used for controlling the model. The system has been played by professional DJs in concerts.
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| 6. |
- Tollmar, Konrad, et al.
(författare)
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Navigating in virtual environments using a vision-based interface
- 2004
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Ingår i: Proceedings of the third Nordic conference on Human-computer interaction. - New York, NY, USA : ACM. - 1581138571 - 9781581138573 ; , s. 113-120
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Konferensbidrag (refereegranskat)abstract
- Interacting and navigating virtual environments usually requires a wired interface, game console, or keyboard. The advent of perceptual interface techniques allows a new option: the passive and untethered sensing of users’ pose and gesture to allow them to maneuver through and manipulate virtual worlds. We describe new algorithms for interacting with 3-D environments using real-time articulated body tracking with standard cameras and personal computers. Our method is based on rigid stereo-motion estimation algorithms and can accurately track upper body pose in real-time. With our tracking system users can navigate virtual environments using 3-D gesture and body poses. We analyze the space of possible perceptual interface abstractions for full-body navigation, and present a prototype system based on these results. We finally describe an initial evaluation of our prototype system with users guiding avatars through a series of 3-D virtual game worlds.
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| 7. |
- Goebl, W., et al.
(författare)
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Once again: The perception of piano touch and tone : Can touch audibly change piano sound independently of intensity?
- 2004
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Ingår i: Proceedings of the International Symposium on Musical Acoustics, March 31st to April 3rd 2004 (ISMA2004), Nara, Japan. - Nara, Japan : The Acoustical Society of Japan, CD-ROM. - 4998060236 ; , s. 332-335
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Konferensbidrag (refereegranskat)abstract
- This study addresses the old question of whether the timbreof isolated piano tones can be audibly varied independentlyof their hammer velocities—only through thetype of touch. A large amount of single piano tones wereplayed with two prototypical types of touch: depressingthe keys with the finger initially resting on the key surface(pressed), and hitting the keys from a certain distanceabove (struck). Musicians were asked to identify the typeof touch of the recorded samples, in a first block with allattack noises before the tone onsets included, in a secondblock without them. Half of the listeners could correctlyidentify significantly more tones than chance in the firstblock (up to 86% accuracy), but no one in block 2. Thosewho heard no difference tended to give struck ratings forlouder tones in both blocks.
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| 10. |
- Bresin, Roberto
(författare)
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Real-time visualization of musical expression
- 2004
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Ingår i: Proceedings of Network of Excellence HUMAINE Workshop "From Signals to Signs of Emotion and Vice Versa". ; , s. 19-23
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Konferensbidrag (refereegranskat)abstract
- A system for real-time feedback of expressive music performance is presented.The feedback is provided by using a graphical interface where acoustic cues arepresented in an intuitive fashion. The graphical interface presents on the computerscreen a three-dimensional object with continuously changing shape, size,position, and colour. Some of the acoustic cues were associated with the shape ofthe object, others with its position. For instance, articulation was associated withshape, staccato corresponded to an angular shape and legato to a rounded shape.The emotional expression resulting from the combination of cues was mapped interms of the colour of the object (e.g., sadness/blue). To determine which colourswere most suitable for respective emotion, a test was run. Subjects rated how welleach of 8 colours corresponds to each of 12 music performances expressingdifferent emotions.
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