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System for Colocating Visual Images & Associated Sound

[Category : - SOFTWARES- Telecommunications- Audio - Video]
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PIXELPHONICS is a prototype system for the colocation of audio sources with their associated visual objects in screen-based media and virtual reality, a new technology described in System, Method and Apparatus for Co-locating Visual Images and Associated Sound (International Application No. PCT/CA2018/050433), sponsored by the Innovation Office of Simon Fraser University. The prototype produces a new form of multichannel audiovisual display in which the associated sound emanates from the specific screen or physical enclosure areas of the moving and virtual images, allowing for colocated audio and visuals. The technology adds a new perceptual and experiential layer to the technology of synchronized sound, which has existed now for over a century, by adding its spatial complement, so that sound can now be in place with its image, in addition to being in time with it. In contrast to surround sound arrays, which envelop listeners in an enveloping sound field, Pixelphonics draws attention to areas of screen-based imagery, so that sounds are attached to their visual sources within the display just as they are in natural perception. In VR or AR contexts, Pixelphonics consists of wall panels which emit sound in colocation to objects and events in the virtual environment relative to the users’ position in real space. Pixelphonics colocates audio and visuals through attaching a 2D array of audio exciters to the back side of a visual display– which may be either projection-based or OLED video screens, or wall panels– connected to signal distribution and software. The visual display or enclosure itself becomes the sound emitter. In most audiovisual systems, audio is spatially dislocated from visual sources. e.g. through detached speakers or headphones. Since with Pixelphonics the screen or surrounding surface is the source of the sound, not only is audio tied to the general screen and surface area, but through signal processing the audio associated with the visual objects emanates from the vibrating surface areas in colocation to the visual cues. Pixelphonics creates more immersive experiences with interactive media since it emulates the way we actually experience objects and events in everyday experiences.


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