Invention Grant
US09460724B2 Audio signal decoder, audio signal encoder, method for providing an upmix signal representation, method for providing a downmix signal representation, computer program and bitstream using a common inter-object-correlation parameter value
有权
音频信号解码器，音频信号编码器，用于提供上混合信号表示的方法，用于提供下混信号表示的方法，计算机程序和比特流，使用公共的对象间相关参数值
- Patent Title: Audio signal decoder, audio signal encoder, method for providing an upmix signal representation, method for providing a downmix signal representation, computer program and bitstream using a common inter-object-correlation parameter value
- Patent Title (中): 音频信号解码器，音频信号编码器，用于提供上混合信号表示的方法，用于提供下混信号表示的方法，计算机程序和比特流，使用公共的对象间相关参数值
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Application No.: US13434450Application Date: 2012-03-29
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Publication No.: US09460724B2Publication Date: 2016-10-04
- Inventor: Juergen Herre , Johannes Hilpert , Andreas Hoelzer , Jonas Engdegard , Heiko Purnhagen
- Applicant: Juergen Herre , Johannes Hilpert , Andreas Hoelzer , Jonas Engdegard , Heiko Purnhagen
- Applicant Address: DE Munich NL Amsterdam Zuid-Oost
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.,Dolby International AB
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.,Dolby International AB
- Current Assignee Address: DE Munich NL Amsterdam Zuid-Oost
- Agency: Perkins Coie LLP
- Agent Michael A. Glenn
- Priority: EP10171406 20100730
- Main IPC: H04R5/00
- IPC: H04R5/00 ; G10L19/008 ; G10L19/005 ; G10L19/20 ; H04S3/02 ; H04S5/00
Abstract:
An audio signal decoder for providing an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information and in dependence on a rendering information has an object parameter determinator. The object parameter determinator is configured to obtain inter-object-correlation values for a plurality of pairs of audio objects. The object parameter determinator is configured to evaluate a bitstream signaling parameter in order to decide whether to evaluate individual inter-object-correlation bitstream parameter values to obtain inter-object-correlation values for a plurality of pairs of related audio objects, or to obtain inter-object-correlation values for a plurality of pairs of related audio objects using a common inter-object-correlation bitstream parameter value. The audio signal decoder also has a signal processor configured to obtain the upmix signal representation on the basis of the downmix signal representation and using the inter-object-correlation values for a plurality of pairs of related objects and the rendering information.
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