PPARATUS, METHOD AND COMPUTER PROGRAM FOR UPMIXING A DOWNMIX AUDIO SIGNAL
专利「PPARATUS, METHOD AND COMPUTER PROGRAM FOR UPMIXING A DOWNMIX AUDIO SIGNAL」由 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. 持有，当前状态为已申请，申请号 P/974。LaoBiz 老商通提供老挝知识产权信息检索与企业关联查询。
Patent “PPARATUS, METHOD AND COMPUTER PROGRAM FOR UPMIXING A DOWNMIX AUDIO SIGNAL” is held by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.; status: 已申请. Search Laos IP records on LaoBiz.
P/974
图样
基础信息
- 类型
- 专利
- 申请号
P/974- 状态
- 已申请
- 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
- 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