Title:
APPARATUS, METHOD, OR COMPUTER PROGRAM FOR PROCESSING AN ENCODED AUDIO SCENE USING A PARAMETER SMOOTHING
Document Type and Number:
WIPO Patent Application WO/2022/074202
Kind Code:
A3
Abstract:
Apparatus for processing an audio scene (130) representing a sound field, the audio scene (130) comprising information on a transport signal (122) and a first set of parameters (112). The apparatus comprising a parameter processor (110) for processing the first set of parameters (112) to obtain a second set of parameters (114), wherein the parameter processor (110) is configured to calculate at least one raw parameter (252) for each output time frame (220) using at least one parameter of the first set of parameters (112) for the input time frame (210), to calculate a smoothing information (512; 522) such as a factor for each raw parameter (252) in accordance with a smoothing rule, and to apply a corresponding smoothing information (512; 522) to the corresponding raw parameter (252) to derive the parameter of the second set of parameters (114) for the output time frame (220). The apparatus further comprising an output interface (120) for generating a processed audio scene (124) using the second set of parameters (114) and the information on the transport signal (122).
Inventors:
REUTELHUBER FRANZ (DE)
FUCHS GUILLAUME (DE)
MULTRUS MARKUS (DE)
FOTOPOULOU ELENI (DE)
BAYER STEFAN (DE)
BÜTHE JAN (DE)
DÖHLA STEFAN (DE)
FUCHS GUILLAUME (DE)
MULTRUS MARKUS (DE)
FOTOPOULOU ELENI (DE)
BAYER STEFAN (DE)
BÜTHE JAN (DE)
DÖHLA STEFAN (DE)
Application Number:
PCT/EP2021/077874
Publication Date:
May 19, 2022
Filing Date:
October 08, 2021
Export Citation:
Assignee:
FRAUNHOFER GES FORSCHUNG (DE)
International Classes:
G10L19/008
Domestic Patent References:
| WO2010115850A1 | 2010-10-14 |
Foreign References:
| GB2571949A | 2019-09-18 | |||
| US20200152209A1 | 2020-05-14 | |||
| US20130016842A1 | 2013-01-17 |
Attorney, Agent or Firm:
SCHENK, Markus et al. (DE)
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