Device and method for generation and processing of sound effects in spatial audio reproduction systems using a graphical user interface

A graphical user interface, user technology, applied in stereo systems, electrical components, etc., to achieve the effect of increasing complexity

Inactive Publication Date: 2008-04-30
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this way, the computational performance required by the wave field synthesis unit must also increase since channel information typically must also be taken into account

Method used

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  • Device and method for generation and processing of sound effects in spatial audio reproduction systems using a graphical user interface
  • Device and method for generation and processing of sound effects in spatial audio reproduction systems using a graphical user interface
  • Device and method for generation and processing of sound effects in spatial audio reproduction systems using a graphical user interface

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Embodiment Construction

[0064]1 shows a block diagram of the operation of a graphical user interface 10 according to the present invention, the graphical user interface 10 has: display means 12 for graphically displaying the impulse response; means 14 for allowing changes to the graphical display; means 16 for a changed user input; and means 18 for detecting a modified impulse response.

[0065] The display device 12 graphically represents the impulse response prepared for the user, so that the effects of changes in the represented impulse response can be intuitively interpreted and predicted.

[0066] The means 14 for allowing the graphic display to be changed have access to the display means 12 and the data visualized by the display means 12 .

[0067] In order to allow changing the impulse response, there is a need for user input received by means 16 for receiving changing user input, whereby interaction and visualization techniques such as computer mouse, touchpad, or systems from virtual reality...

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Abstract

The invention is based on the discovery that when the impulse response associated with the spatial orientation relative to the reproduction environment can be represented graphically (12), and when the user can change the impulse response through the graphical representation (14), it is possible to rely on a graphical user interface To effectively and intuitively control a sound reproduction system capable of producing a spatial sound impression in the reproduction environment, so based on changes in user input, a changed impulse response can be represented graphically and a changed graphical representation can be detected (16 ) to control the sound reproduction system. Since the system can theoretically describe all known linear signal processing operations by means of impulse responses, with the graphical user interface of the present invention it is possible to provide the mixer with intuitive access to the sound effects depending on the graphical representation direction.

Description

technical field [0001] The present invention relates to modern audio technology, and more particularly to the generation and processing of spatial sound impressions for sound reproduction systems. Background technique [0002] In modern sound reproduction systems that can be realized, by using several loudspeakers, individual sound sources can be precisely localized in space and the effect of being in a simulated area (such as a stadium or a cathedral) produced in the reproduction environment. Two different notions of representation can be distinguished theoretically. In traditional surround reproduction (often also useful in home entertainment), positional and spatial information has been mixed during the sound mixing process into the individual channels to be delivered discretely, a reproduction system consisting of multiple loudspeakers is used to reproduce the individual channels . The reproduction loudspeakers should be located at predetermined positions relative to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04S7/00G10L21/14
CPCH04S2420/13H04S7/305H04S7/40
Inventor 弗兰克·梅尔基奥珍·朗汉默尔
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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