PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION
关于老挝专利「PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION」，老商通整理了如下公开信息，由 Dolby International AB 于 2022-12-07 提交申请，当前状态为已注册。公开档案中可核验：申请号 P/874，DIP 编号 LAP874，主管局代码 LA，保护类型 Patent - Foreign。时间线要点：公开/公告日 2024-10-24；授权日 2024-09-20；届满/失效参考日 2042-12-07。技术或外观分类记载为 G10L 19/00、G10L 19/02、G10L 21/038。发明人 / 设计人包括 KJöRLING, Kristofer - Swedish。代理机构 / 代理人记载为 ACTIP (LAO) IP CO., LTD。公开摘要提示：The application relates to HFR (High Frequency Reconstruction/Regeneration) of audio signals. In particular, the application relates to a m…。
P/874
图样
基础信息
- 类型
- 专利
- 申请号
P/874- 状态
- 已注册
- 申请人
- Dolby International AB
- 代理机构
- ACTIP (LAO) IP CO., LTD
- 申请日期
- 2022-12-07
- 注册号
P/874- 公开 / 公告日
- 2024-10-24
- 注册 / 授权日
- 2024-09-20
- 到期日
- 2042-12-07
- 保护类型
- Patent - Foreign
- 公报号
- 274 · 2024-10-24
- 申请人地址
- Dolby International AB · Mr. Treublaan 7 1097DP Amsterdam The Netherlands · NL
- 代理地址
- ACTIP (LAO) IP CO., LTD · Sisavath Village, Chanthabouly District, Vientaine, Lao PDR · LA
- 国际分类
- G10L 19/00 · G10L 19/02 · G10L 21/038
- 商品 / 服务
- —
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摘要
The application relates to HFR (High Frequency Reconstruction/Regeneration) of audio signals. In particular, the application relates to a method and system for performing HFR of audio signals having large variations in energy level across the low frequency range which is used to reconstruct the high frequencies of the audio signal. A system configured to generate a plurality of high frequency subband signals covering a high frequency interval from a plurality of low frequency subband signals is described. The system comprises means for receiving the plurality of low frequency subband signals; means for receiving a set of target energies, each target energy covering a different target interval within the high frequency interval and being indicative of the desired energy of one or more high frequency subband signals lying within the target interval; means for generating the plurality of high frequency subband signals from the plurality of low frequency subband signals and from a plurality of spectral gain coeffrcients associated with the plurality of low frequency subband signals, respectivelyl and means for adjusting the energy of the plurality of high frequency subband signals using the set of target energies
The application relates to HFR (High Frequency Reconstruction/Regeneration) of audio signals. In particular, the application relates to a method and system for performing HFR of audio signals having large variations in energy level across the low frequency range which is used to reconstruct the high frequencies of the audio signal. A system configured to generate a plurality of high frequency subband signals covering a high frequency interval from a plurality of low frequency subband signals is described. The system comprises means for receiving the plurality of low frequency subband signals; means for receiving a set of target energies, each target energy covering a different target interval within the high frequency interval and being indicative of the desired energy of one or more high frequency subband signals lying within the target interval; means for generating the plurality of high frequency subband signals from the plurality of low frequency subband signals and from a plurality of spectral gain coeffrcients associated with the plurality of low frequency subband signals, respectivelyl and means for adjusting the energy of the plurality of high frequency subband signals using the set of target energies
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