PPARATUS, METHOD AND COMPUTER PROGRAM FOR UPMIXING A DOWNMIX AUDIO SIGNAL
关于老挝专利「PPARATUS, METHOD AND COMPUTER PROGRAM FOR UPMIXING A DOWNMIX AUDIO SIGNAL」，老商通整理了如下公开信息，由 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. 于 2024-09-26 提交申请，当前状态为等待形式审查。关键编号与类型标注为 申请号 P/974 / DIP 编号 LAP974 / 主管局代码 LA / 保护类型 Patent - Foreign。时间线要点：公开/公告日 2026-04-24。技术或外观分类记载为 G10L 19/00、H04B 1/66。发明人 / 设计人包括 Matthias NEUSINGER Johannes HILPERT Julien ROBILLIARD。代理机构 / 代理人记载为 CONCETTI-LAO CO., LTD。公开摘要提示：An apparatus for upmixing a downmix audio signal describing one or more downmix audio channels into an upmixed audio signal describing a pl…。
P/974
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基础信息
- 类型
- 专利
- 申请号
P/974- 状态
- 等待形式审查
- 申请人
- Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 代理机构
- CONCETTI-LAO CO., LTD
- 申请日期
- 2024-09-26
- 公开 / 公告日
- 2026-04-24
- 保护类型
- Patent - Foreign
- 优先权
- EU · 09007086.3 · 2009-05-27；SG · 2011053774 · 2010-01-12；US · 61/147,815 · 2009-01-28
- 国际分类
- G10L 19/00 · H04B 1/66
- 商品 / 服务
- —
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摘要
An apparatus for upmixing a downmix audio signal describing one or more downmix audio channels into an upmixed audio signal describing a plurality of upmixed audio channels comprises an upmixer configured to apply temporally variable upmixing parameters to upmix the downmix audio signal in order to obtain the upmixed audio signal. The apparatus also comprises a parameter interpolator, wherein the parameter interpolator is configured toobtain one or more temporally interpolated upmix parameters to be used by the upmixer onthe basis of a first complex-valued upmix parameter and a subsequent second complexvalued upmix parameter. The parameter interpolator is configured to separately interpolatebetween a magnitude value of the first complex-valued upmix parameter and a magnitude value of the second complex-valued upmix parameter, and between a phase value of the firstcomplex-valued upmix parameter and a phase value of the second complex-valued upmixparameter, to obtain the one or more temporally interpolated upmix parameters. A respectivemethod can be implemented, for example, as a computer program
An apparatus for upmixing a downmix audio signal describing one or more downmix audio channels into an upmixed audio signal describing a plurality of upmixed audio channels comprises an upmixer configured to apply temporally variable upmixing parameters to upmix the downmix audio signal in order to obtain the upmixed audio signal. The apparatus also comprises a parameter interpolator, wherein the parameter interpolator is configured toobtain one or more temporally interpolated upmix parameters to be used by the upmixer onthe basis of a first complex-valued upmix parameter and a subsequent second complexvalued upmix parameter. The parameter interpolator is configured to separately interpolatebetween a magnitude value of the first complex-valued upmix parameter and a magnitude value of the second complex-valued upmix parameter, and between a phase value of the firstcomplex-valued upmix parameter and a phase value of the second complex-valued upmixparameter, to obtain the one or more temporally interpolated upmix parameters. A respectivemethod can be implemented, for example, as a computer program
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