CA3026283A1 - Reconstructing audio signals with multiple decorrelation techniques - Google Patents
Reconstructing audio signals with multiple decorrelation techniquesInfo
- Publication number
- CA3026283A1 CA3026283A1 CA3026283A CA3026283A CA3026283A1 CA 3026283 A1 CA3026283 A1 CA 3026283A1 CA 3026283 A CA3026283 A CA 3026283A CA 3026283 A CA3026283 A CA 3026283A CA 3026283 A1 CA3026283 A1 CA 3026283A1
- Authority
- CA
- Canada
- Prior art keywords
- audio channels
- audio signals
- audio
- decorrelation techniques
- multiple decorrelation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Abstract
Systems and methods of audio signal processing are provided that relate to improved upmixing, whereby N audio channels are derived from M audio channels, a decorrelated version of the M audio channels and a set of spatial parameters.
The set of spatial parameters includes an amplitude parameter, a correlation parameter and a phase parameter. The M audio channels are decorrelated using multiple decorrelation techniques to obtain the decorrelated version of the M audio channels. This can be used, for example, for generating an N audio channel upmix.
The set of spatial parameters includes an amplitude parameter, a correlation parameter and a phase parameter. The M audio channels are decorrelated using multiple decorrelation techniques to obtain the decorrelated version of the M audio channels. This can be used, for example, for generating an N audio channel upmix.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57997401P | 2001-06-14 | 2001-06-14 | |
US54936804P | 2004-03-01 | 2004-03-01 | |
US60/549368 | 2004-03-01 | ||
US60/579974 | 2004-06-14 | ||
US58825604P | 2004-07-14 | 2004-07-14 | |
US60/588256 | 2004-07-14 | ||
CA2992051A CA2992051C (en) | 2004-03-01 | 2005-02-28 | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2992051A Division CA2992051C (en) | 2001-06-14 | 2005-02-28 | Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters |
Publications (2)
Publication Number | Publication Date |
---|---|
CA3026283A1 true CA3026283A1 (en) | 2005-09-15 |
CA3026283C CA3026283C (en) | 2019-04-09 |
Family
ID=64655307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA3026283A Active CA3026283C (en) | 2001-06-14 | 2005-02-28 | Reconstructing audio signals with multiple decorrelation techniques |
Country Status (1)
Country | Link |
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CA (1) | CA3026283C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110619882A (en) * | 2013-07-29 | 2019-12-27 | 杜比实验室特许公司 | System and method for reducing temporal artifacts of transient signals in decorrelator circuits |
CN111179956A (en) * | 2013-10-21 | 2020-05-19 | 杜比国际公司 | Parametric reconstruction of audio signals |
CN112967729A (en) * | 2021-02-24 | 2021-06-15 | 辽宁省视讯技术研究有限公司 | Vehicle-mounted local audio fuzzy processing method and device |
CN117476026A (en) * | 2023-12-26 | 2024-01-30 | 芯瞳半导体技术(山东)有限公司 | Method, system, device and storage medium for mixing multipath audio data |
-
2005
- 2005-02-28 CA CA3026283A patent/CA3026283C/en active Active
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110619882A (en) * | 2013-07-29 | 2019-12-27 | 杜比实验室特许公司 | System and method for reducing temporal artifacts of transient signals in decorrelator circuits |
CN110619882B (en) * | 2013-07-29 | 2023-04-04 | 杜比实验室特许公司 | System and method for reducing temporal artifacts of transient signals in decorrelator circuits |
CN111179956A (en) * | 2013-10-21 | 2020-05-19 | 杜比国际公司 | Parametric reconstruction of audio signals |
CN111179956B (en) * | 2013-10-21 | 2023-08-11 | 杜比国际公司 | Parametric reconstruction of audio signals |
US11769516B2 (en) | 2013-10-21 | 2023-09-26 | Dolby International Ab | Parametric reconstruction of audio signals |
CN112967729A (en) * | 2021-02-24 | 2021-06-15 | 辽宁省视讯技术研究有限公司 | Vehicle-mounted local audio fuzzy processing method and device |
CN117476026A (en) * | 2023-12-26 | 2024-01-30 | 芯瞳半导体技术(山东)有限公司 | Method, system, device and storage medium for mixing multipath audio data |
Also Published As
Publication number | Publication date |
---|---|
CA3026283C (en) | 2019-04-09 |
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Legal Events
Date | Code | Title | Description |
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EEER | Examination request |
Effective date: 20181203 |