PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION
专利「PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION」由 Dolby International AB 持有，当前状态为已注册，申请号 P/874。LaoBiz 老商通提供老挝知识产权信息检索与企业关联查询。
Patent “PROCESSING OF AUDIO SIGNALS DURING HIGH FREQUENCY RECONSTRUCTION” is held by Dolby International AB; status: 已注册. Search Laos IP records on LaoBiz.
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
- 届满日
- 2042-12-07
- 国际分类
- G10L 19/00 · G10L 19/02 · G10L 21/038
- 商品 / 服务
- —
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关联分析
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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