SG11201906370TA - Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals - Google Patents
Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signalsInfo
- Publication number
- SG11201906370TA SG11201906370TA SG11201906370TA SG11201906370TA SG11201906370TA SG 11201906370T A SG11201906370T A SG 11201906370TA SG 11201906370T A SG11201906370T A SG 11201906370TA SG 11201906370T A SG11201906370T A SG 11201906370TA SG 11201906370T A SG11201906370T A SG 11201906370TA
- Authority
- SG
- Singapore
- Prior art keywords
- international
- california
- san francisco
- audio signal
- audio
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 6
- 230000010354 integration Effects 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract 4
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000008520 organization Effects 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/26—Pre-filtering or post-filtering
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Algebra (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Stereophonic System (AREA)
- Peptides Or Proteins (AREA)
- Materials For Photolithography (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Lubricants (AREA)
- Detergent Compositions (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 September 2018 (27.09.2018) WIP0 I PCT 011101 VIII n ono o VIII VIII Imo °El (10) International Publication Number WO 2018/175347 Al (51) International Patent Classification: G06F 17/10 (2006.01) G1OL 19/24 (2013.01) G10L 19/02 (2013.01) G10L 19/26 (2013.01) G10L 19/22 (2013.01) (21) International Application Number: PCT/US2018/023183 (22) International Filing Date: 19 March 2018 (19.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/475,619 23 March 2017 (23.03.2017) US (71) Applicants: DOLBY INTERNATIONAL AB [SE/NL]; Apollo Building, 3E Herikerbergweg 1-35, 1101 CN Amsterdam Zuidoost (NL). DOLBY LABORATORIES LICENSING CORPORATION [US/US]; 1275 Market Street, San Francisco, California 94103 (US). (72) Inventors: VILLEMOES, Lars; c/o Dolby Laboratories, Inc., 1275 Market Street, San Francisco, California 94103 (US). PURNHAGEN, Heiko; c/o Dolby Laboratories, Inc., 1275 Market Street, San Francisco, California 94103 (US). EKSTRAND, Per; c/o Dolby Laboratories, Inc., 1275 Mar- ket Street, San Francisco, California 94103 (US). (74) Agent: DOLBY LABORATORIES, INC. et al.; Intellec- tual Property Group, 1275 Market Street, San Francisco, California 94103 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (54) Title: BACKWARD-COMPATIBLE INTEGRATION OF HARMONIC TRANSPOSER FOR HIGH FREQUENCY RE- CONSTRUCTION OF AUDIO SIGNALS L -400 Audio Input (Decoder) Buffer F.—. ‘ \"--201 ( -401 eSBR Control Bit Generation 215 r 202 Decode r 203 1 eSBR Processing , De- ormatter 1-1 71- kl) 1-1 N N 1-1 00 O N C FIG. 5 output (57) : A method for decoding an encoded audio bitstream is disclosed. The method includes receiving the encoded audio bit- stream and decoding the audio data to generate a decoded lowband audio signal. The method further includes extracting high frequen- cy 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. [Continued on next page] WO 2018/175347 Al MIDEDIMOMMIDIREEMOMOINEIIIMMOHNEVOIMIE Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3))
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762475619P | 2017-03-23 | 2017-03-23 | |
| PCT/US2018/023183 WO2018175347A1 (en) | 2017-03-23 | 2018-03-19 | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG11201906370TA true SG11201906370TA (en) | 2019-08-27 |
Family
ID=63585721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG11201906370TA SG11201906370TA (en) | 2017-03-23 | 2018-03-19 | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
Country Status (26)
| Country | Link |
|---|---|
| US (7) | US10818306B2 (en) |
| EP (1) | EP3559821A4 (en) |
| JP (4) | JP6665354B2 (en) |
| KR (6) | KR20230160960A (en) |
| CN (3) | CN112863528A (en) |
| AR (6) | AR111047A1 (en) |
| AU (5) | AU2018237070B2 (en) |
| BR (2) | BR112019014125B1 (en) |
| CA (5) | CA3049600C (en) |
| CL (1) | CL2019001981A1 (en) |
| CO (1) | CO2019008431A2 (en) |
| EA (3) | EA202191156A1 (en) |
| EC (1) | ECSP19054232A (en) |
| GE (1) | GEP20217226B (en) |
| IL (5) | IL305626B1 (en) |
| MA (1) | MA47232A (en) |
| MX (7) | MX2022009313A (en) |
| NZ (2) | NZ755366A (en) |
| PE (1) | PE20191288A1 (en) |
| PH (1) | PH12019501658A1 (en) |
| SA (1) | SA519402434B1 (en) |
| SG (1) | SG11201906370TA (en) |
| TW (3) | TW202341126A (en) |
| UA (3) | UA126393C2 (en) |
| WO (1) | WO2018175347A1 (en) |
| ZA (6) | ZA201904559B (en) |
Families Citing this family (4)
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| TWI758146B (en) * | 2015-03-13 | 2022-03-11 | 瑞典商杜比國際公司 | Decoding audio bitstreams with enhanced spectral band replication metadata in at least one fill element |
| TW202341126A (en) | 2017-03-23 | 2023-10-16 | 瑞典商都比國際公司 | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
| TWI702594B (en) | 2018-01-26 | 2020-08-21 | 瑞典商都比國際公司 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
| CN113113032A (en) | 2020-01-10 | 2021-07-13 | 华为技术有限公司 | Audio coding and decoding method and audio coding and decoding equipment |
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| TW202341126A (en) * | 2017-03-23 | 2023-10-16 | 瑞典商都比國際公司 | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
| TWI702594B (en) * | 2018-01-26 | 2020-08-21 | 瑞典商都比國際公司 | Backward-compatible integration of high frequency reconstruction techniques for audio signals |
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2018
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