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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 technology of bit stream and control parameters, applied to a bit stream device, provides a bit stream representing multi-channel audio signals, and represents the field of bit streams of multi-channel audio signals, which can solve problems such as unacceptable output quality.

Active Publication Date: 2014-07-09
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV +1
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  • Description
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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 thus 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 via a d...

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Abstract

A device for providing an upmix signal representation based on a downmix signal representation and an object-related parameter information included in an audio content, and according to a presence information A bitstream representation of the apparatus comprising a distortion limiter configured to adjust upmix parameters using a distortion control scheme to avoid or limit auditory distortion caused by improper selection of rendering parameters. The distortion limiter is configured to obtain a distortion limit control parameter included in the bitstream representation of the audio content, and adjust a distortion control scheme according to the distortion limit 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 ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L19/008H04S3/00
CPCG10L19/008H04S2420/03H04S3/008G10L19/00
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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