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

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

Inactive Publication Date: 2010-10-06
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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Experimental program
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Embodiment Construction

[0068] figure 1 A block diagram showing the operation of a graphical user interface 10 according to the invention having: display means 12 for graphically displaying the impulse response; means 14 for allowing changes to the graphical display; means for receiving changes means 16 for user input; and means 18 for detecting a modified impulse response.

[0069] 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.

[0070] 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 .

[0071] 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 can be reli...

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Abstract

The related invention is based on the following description: when the pulse response (12) which is related with the spatial direction of a reproduction environment is able to be graphically represented, and when a user can change a pulse response (14) by graphical representation, an audio reproduction system is able to be effectively and intuitively controlled by a graphical user interface, and is able to generate reproduce a spatial sound effect in a reproduction environment, so that the changed pulse response can be graphically represented based on the input change of a user, and a changed graphical representation (16) is able to be detected thereby controlling the audio reproduction system. Due to the system can theoretically represent all known linear signal processing operation through the pulse response, it is possible using said graphical user interface to give intuitive access to directional sound effects to an audio shaper.

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 Patents(China)
IPC IPC(8): H04S7/00G10L21/14
CPCH04S7/305H04S2420/13H04S7/40
Inventor 弗兰克·梅尔基奥珍·朗汉默尔
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV