EP4303871A3 - Backward-compatible integration of high frequency reconstruction techniques for audio signals - Google Patents
Backward-compatible integration of high frequency reconstruction techniques for audio signals Download PDFInfo
- Publication number
- EP4303871A3 EP4303871A3 EP23210525.4A EP23210525A EP4303871A3 EP 4303871 A3 EP4303871 A3 EP 4303871A3 EP 23210525 A EP23210525 A EP 23210525A EP 4303871 A3 EP4303871 A3 EP 4303871A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- high frequency
- audio signal
- frequency reconstruction
- backward
- audio signals
- 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.)
- Pending
Links
- 230000005236 sound signal Effects 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 5
- 230000010354 integration Effects 0.000 title 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
- 230000017105 transposition Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
-
- 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
-
- 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
- G10L19/04—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 using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
Abstract
A method for decoding an encoded audio bitstream is disclosed. The method includes receiving the encoded audio bitstream and decoding the audio data to generate a decoded lowband audio signal. The method further includes extracting high frequency reconstruction metadata and filtering the decoded lowband audio signal with an analysis filterbank to generate a filtered lowband audio signal. The method also includes extracting a flag indicating whether either spectral translation or harmonic transposition is to be performed on the audio data and regenerating a highband portion of the audio signal using the filtered lowband audio signal and the high frequency reconstruction metadata in accordance with the flag.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18153683 | 2018-01-26 | ||
| EP22181854.5A EP4099325B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP21164481.0A EP3872809B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP22189216.9A EP4120261B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP19153875.0A EP3518233B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
Related Parent Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22189216.9A Division EP4120261B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP19153875.0A Division EP3518233B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP21164481.0A Division EP3872809B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP22181854.5A Division EP4099325B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4303871A2 EP4303871A2 (en) | 2024-01-10 |
| EP4303871A3 true EP4303871A3 (en) | 2024-03-20 |
Family
ID=61054251
Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23210524.7A Pending EP4303870A3 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP21164481.0A Active EP3872809B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP22189216.9A Active EP4120261B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP23210523.9A Pending EP4303869A3 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP19153875.0A Active EP3518233B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP22181854.5A Active EP4099325B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP23210525.4A Pending EP4303871A3 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
Family Applications Before (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23210524.7A Pending EP4303870A3 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP21164481.0A Active EP3872809B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP22189216.9A Active EP4120261B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP23210523.9A Pending EP4303869A3 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP19153875.0A Active EP3518233B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| EP22181854.5A Active EP4099325B1 (en) | 2018-01-26 | 2019-01-28 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
Country Status (6)
| Country | Link |
|---|---|
| EP (7) | EP4303870A3 (en) |
| DK (4) | DK4120261T3 (en) |
| ES (3) | ES2871872T3 (en) |
| FI (2) | FI4120261T3 (en) |
| HU (3) | HUE062211T2 (en) |
| PL (4) | PL3872809T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192523A (en) * | 2020-01-13 | 2021-07-30 | 华为技术有限公司 | Audio coding and decoding method and audio coding and decoding equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016149015A1 (en) * | 2015-03-13 | 2016-09-22 | Dolby Laboratories Licensing Corporation | Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element |
-
2019
- 2019-01-28 DK DK22189216.9T patent/DK4120261T3/en active
- 2019-01-28 HU HUE22181854A patent/HUE062211T2/en unknown
- 2019-01-28 EP EP23210524.7A patent/EP4303870A3/en active Pending
- 2019-01-28 EP EP21164481.0A patent/EP3872809B1/en active Active
- 2019-01-28 FI FIEP22189216.9T patent/FI4120261T3/en active
- 2019-01-28 EP EP22189216.9A patent/EP4120261B1/en active Active
- 2019-01-28 PL PL21164481.0T patent/PL3872809T3/en unknown
- 2019-01-28 EP EP23210523.9A patent/EP4303869A3/en active Pending
- 2019-01-28 DK DK22181854.5T patent/DK4099325T3/en active
- 2019-01-28 PL PL22181854.5T patent/PL4099325T3/en unknown
- 2019-01-28 PL PL22189216.9T patent/PL4120261T3/en unknown
- 2019-01-28 EP EP19153875.0A patent/EP3518233B1/en active Active
- 2019-01-28 PL PL19153875T patent/PL3518233T3/en unknown
- 2019-01-28 ES ES19153875T patent/ES2871872T3/en active Active
- 2019-01-28 ES ES21164481T patent/ES2924955T3/en active Active
- 2019-01-28 HU HUE19153875A patent/HUE054531T2/en unknown
- 2019-01-28 EP EP22181854.5A patent/EP4099325B1/en active Active
- 2019-01-28 DK DK19153875.0T patent/DK3518233T3/en active
- 2019-01-28 DK DK21164481.0T patent/DK3872809T3/en active
- 2019-01-28 HU HUE21164481A patent/HUE059669T2/en unknown
- 2019-01-28 EP EP23210525.4A patent/EP4303871A3/en active Pending
- 2019-01-28 ES ES22181854T patent/ES2948839T3/en active Active
- 2019-01-28 FI FIEP22181854.5T patent/FI4099325T3/en active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016149015A1 (en) * | 2015-03-13 | 2016-09-22 | Dolby Laboratories Licensing Corporation | Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element |
Non-Patent Citations (2)
| Title |
|---|
| ANONYMOUS: "ISO/IEC 14496-3:200x, Fourth Edition, part 1", 82. MPEG MEETING;22-10-2007 - 26-10-2007; SHENZHEN; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11),, 15 May 2009 (2009-05-15), XP030017004 * |
| ANONYMOUS: "Study on ISO/IEC 23003-3:201x/DIS of Unified Speech and Audio Coding", 96. MPEG MEETING;21-3-2011 - 25-3-2011; GENEVA; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11),, no. N12013, 22 April 2011 (2011-04-22), XP030018506 * |
Also Published As
| Publication number | Publication date |
|---|---|
| HUE062211T2 (en) | 2023-10-28 |
| PL4120261T3 (en) | 2024-03-25 |
| FI4120261T3 (en) | 2024-01-12 |
| HUE054531T2 (en) | 2021-09-28 |
| EP4099325A1 (en) | 2022-12-07 |
| PL4099325T3 (en) | 2023-08-14 |
| EP4303870A2 (en) | 2024-01-10 |
| DK4120261T3 (en) | 2024-01-22 |
| EP4120261B1 (en) | 2023-11-29 |
| EP4303869A3 (en) | 2024-03-20 |
| DK4099325T3 (en) | 2023-06-19 |
| EP4120261A1 (en) | 2023-01-18 |
| DK3518233T3 (en) | 2021-05-10 |
| EP4303871A2 (en) | 2024-01-10 |
| ES2871872T3 (en) | 2021-11-02 |
| HUE059669T2 (en) | 2022-12-28 |
| EP3872809A1 (en) | 2021-09-01 |
| EP3518233A1 (en) | 2019-07-31 |
| EP4303869A2 (en) | 2024-01-10 |
| EP3518233B1 (en) | 2021-04-07 |
| PL3518233T3 (en) | 2021-08-16 |
| ES2924955T3 (en) | 2022-10-11 |
| PL3872809T3 (en) | 2022-09-26 |
| EP3872809B1 (en) | 2022-07-27 |
| EP4099325B1 (en) | 2023-05-17 |
| EP4303870A3 (en) | 2024-03-20 |
| DK3872809T3 (en) | 2022-08-22 |
| ES2948839T3 (en) | 2023-09-20 |
| FI4099325T3 (en) | 2023-06-13 |
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