SG11202011329QA - Downmixed signal calculation method and apparatus - Google Patents
Downmixed signal calculation method and apparatusInfo
- Publication number
- SG11202011329QA SG11202011329QA SG11202011329QA SG11202011329QA SG11202011329QA SG 11202011329Q A SG11202011329Q A SG 11202011329QA SG 11202011329Q A SG11202011329Q A SG 11202011329QA SG 11202011329Q A SG11202011329Q A SG 11202011329QA SG 11202011329Q A SG11202011329Q A SG 11202011329QA
- Authority
- SG
- Singapore
- Prior art keywords
- calculation method
- signal calculation
- downmixed signal
- downmixed
- signal
- Prior art date
Links
- 238000004364 calculation method Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/007—Two-channel systems in which the audio signals are in digital form
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/03—Application of parametric coding in stereophonic audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810549905.2A CN110556119B (en) | 2018-05-31 | 2018-05-31 | Method and device for calculating downmix signal |
| PCT/CN2019/070116 WO2019227931A1 (en) | 2018-05-31 | 2019-01-02 | Method and apparatus for calculating down-mixed signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG11202011329QA true SG11202011329QA (en) | 2020-12-30 |
Family
ID=68698667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG11202011329QA SG11202011329QA (en) | 2018-05-31 | 2019-01-02 | Downmixed signal calculation method and apparatus |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US11869517B2 (en) |
| EP (1) | EP3783608A4 (en) |
| JP (1) | JP7159351B2 (en) |
| KR (2) | KR20240013287A (en) |
| CN (2) | CN110556119B (en) |
| BR (1) | BR112020024232A2 (en) |
| SG (1) | SG11202011329QA (en) |
| WO (1) | WO2019227931A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11802894B2 (en) * | 2020-09-17 | 2023-10-31 | Silicon Laboratories Inc. | Compressing information in an end node using an autoencoder neural network |
| CN113421579A (en) * | 2021-06-30 | 2021-09-21 | 北京小米移动软件有限公司 | Sound processing method, sound processing device, electronic equipment and storage medium |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7751572B2 (en) * | 2005-04-15 | 2010-07-06 | Dolby International Ab | Adaptive residual audio coding |
| JP2009500657A (en) * | 2005-06-30 | 2009-01-08 | エルジー エレクトロニクス インコーポレイティド | Apparatus and method for encoding and decoding audio signals |
| MY145497A (en) * | 2006-10-16 | 2012-02-29 | Dolby Sweden Ab | Enhanced coding and parameter representation of multichannel downmixed object coding |
| CN101197134A (en) * | 2006-12-05 | 2008-06-11 | 华为技术有限公司 | Method and apparatus for eliminating influence of encoding mode switch-over, decoding method and device |
| KR101450940B1 (en) * | 2007-09-19 | 2014-10-15 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | Joint enhancement of multi-channel audio |
| RU2439718C1 (en) * | 2007-12-31 | 2012-01-10 | ЭлДжи ЭЛЕКТРОНИКС ИНК. | Method and device for sound signal processing |
| KR101444102B1 (en) * | 2008-02-20 | 2014-09-26 | 삼성전자주식회사 | Method and apparatus for encoding/decoding stereo audio |
| CN102157149B (en) * | 2010-02-12 | 2012-08-08 | 华为技术有限公司 | Stereo signal down-mixing method and coding-decoding device and system |
| CN102884570B (en) * | 2010-04-09 | 2015-06-17 | 杜比国际公司 | MDCT-based complex prediction stereo coding |
| CN102446507B (en) * | 2011-09-27 | 2013-04-17 | 华为技术有限公司 | Down-mixing signal generating and reducing method and device |
| IN2014CN01270A (en) * | 2011-09-29 | 2015-06-19 | Dolby Int Ab | |
| KR102636396B1 (en) * | 2015-09-25 | 2024-02-15 | 보이세지 코포레이션 | Method and system for using long-term correlation differences between left and right channels to time-domain downmix stereo sound signals into primary and secondary channels |
| CN108140393B (en) * | 2016-09-28 | 2023-10-20 | 华为技术有限公司 | Method, device and system for processing multichannel audio signals |
-
2018
- 2018-05-31 CN CN201810549905.2A patent/CN110556119B/en active Active
- 2018-05-31 CN CN202210102567.4A patent/CN114420139A/en active Pending
-
2019
- 2019-01-02 WO PCT/CN2019/070116 patent/WO2019227931A1/en unknown
- 2019-01-02 KR KR1020247002200A patent/KR20240013287A/en active Application Filing
- 2019-01-02 BR BR112020024232-2A patent/BR112020024232A2/en unknown
- 2019-01-02 JP JP2020564202A patent/JP7159351B2/en active Active
- 2019-01-02 KR KR1020207035596A patent/KR102628755B1/en active IP Right Grant
- 2019-01-02 SG SG11202011329QA patent/SG11202011329QA/en unknown
- 2019-01-02 EP EP19811813.5A patent/EP3783608A4/en active Pending
-
2020
- 2020-11-23 US US17/102,190 patent/US11869517B2/en active Active
-
2023
- 2023-11-29 US US18/523,738 patent/US20240105188A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR20210009342A (en) | 2021-01-26 |
| JP2021524938A (en) | 2021-09-16 |
| KR20240013287A (en) | 2024-01-30 |
| JP7159351B2 (en) | 2022-10-24 |
| EP3783608A4 (en) | 2021-06-23 |
| EP3783608A1 (en) | 2021-02-24 |
| WO2019227931A1 (en) | 2019-12-05 |
| KR102628755B1 (en) | 2024-01-23 |
| CN110556119B (en) | 2022-02-18 |
| CN110556119A (en) | 2019-12-10 |
| US20240105188A1 (en) | 2024-03-28 |
| US20210082441A1 (en) | 2021-03-18 |
| CN114420139A (en) | 2022-04-29 |
| BR112020024232A2 (en) | 2021-02-23 |
| US11869517B2 (en) | 2024-01-09 |
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