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Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multichannel audio signal, methods, computer program and bitstream using a distortion control signaling

A control scheme and form technology, applied to a device for upmixing signal representation form, a bit stream device, providing a bit stream representing a multi-channel audio signal, and representing a bit stream field of a multi-channel audio signal, which can solve the problem of unacceptable Output quality and other issues

Active Publication Date: 2012-08-15
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV +1
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  • Application Information

AI Technical Summary

Problems solved by technology

Extreme settings of the Relative Level parameter (eg +20dB) may even result in unacceptable output quality
[0032] Although this is purely the result of violating some basic auditory assumptions of this solution, it is still unacceptable that commercial products will produce bad sound and artifacts depending on the settings of the user interface

Method used

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  • Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multichannel audio signal, methods, computer program and bitstream using a distortion control signaling
  • Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multichannel audio signal, methods, computer program and bitstream using a distortion control signaling
  • Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multichannel audio signal, methods, computer program and bitstream using a distortion control signaling

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[0191] Other embodiments comprise a computer program stored on a machine-readable carrier to perform one of the methods described herein.

[0192] In other words, an embodiment of the inventive method is thus a computer program with a program code for performing one of the methods described herein when the computer program product is run on a computer.

[0193] A further embodiment of the methods of the present invention is therefore a data carrier (or digital storage medium, or computer readable medium) comprising recorded thereon a computer program for performing one of these methods. The data carrier or digital storage medium or recording medium is typically tangible and / or non-transitory.

[0194] A further embodiment of the methods of the invention is therefore a data stream or a sequence of signals representing a computer program for performing one of the methods described herein. The data stream or the sequence of signals can be formed, for example, for transmission vi...

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Abstract

An apparatus for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information, which are included in a bitstream representation of an audio content, and in dependence on a rendering information, comprises a distortion limiter configured to adjust upmix parameters using a distortion control scheme to avoid or limit audible distortions which are caused by an inappropriate choice of rendering parameters. The distortion limiter is configured to obtain a distortion limitation control parameter, which is included in the bitstream representation of the audio content, and to adjust a distortion control scheme in dependence on the distortion limitation control parameter.

Description

technical field [0001] An embodiment according to the present invention relates to a method for providing an upmix signal based on a representation of the downmix signal and an object-related parameter information (included in a bitstream representation of an audio content), and a rendering information. A device that represents form. [0002] Another embodiment according to the present invention relates to an apparatus for providing a bitstream representing a multi-channel audio signal. [0003] Another embodiment according to the present invention relates to a method for providing an upmix signal representation based on the downmix signal representation and an object related parameter information (included in a bitstream representation of an audio content), and a presence information Methods. [0004] Another embodiment according to the present invention relates to a method for providing a bitstream representing a multi-channel audio signal. [0005] Another embodiment acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/00G10L19/008
CPCG10L19/008H04S3/008H04S2420/03G10L19/00
Inventor 约纳斯·恩格德加德海科·普尔纳根于尔根·赫莱莱昂·特伦迪科尔内利娅·法尔克奥利弗·黑尔慕斯
Owner FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
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