MX2022015199A - Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. - Google Patents
Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio.Info
- Publication number
- MX2022015199A MX2022015199A MX2022015199A MX2022015199A MX2022015199A MX 2022015199 A MX2022015199 A MX 2022015199A MX 2022015199 A MX2022015199 A MX 2022015199A MX 2022015199 A MX2022015199 A MX 2022015199A MX 2022015199 A MX2022015199 A MX 2022015199A
- Authority
- MX
- Mexico
- Prior art keywords
- high frequency
- audio signal
- frequency reconstruction
- backward
- audio signals
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 6
- 230000010354 integration Effects 0.000 title 1
- 238000000034 method Methods 0.000 abstract 4
- 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
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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
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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
- G10L19/26—Pre-filtering or post-filtering
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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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- General Physics & Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computational Mathematics (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)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Materials For Photolithography (AREA)
- Lubricants (AREA)
- Detergent Compositions (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
Se da a conocer un método para decodificar un flujo de bits de audio codificado. El método incluye recibir el flujo de bits de audio codificado y decodificar los datos de audio para generar una señal de audio de banda baja decodificada. El método incluye asimismo extraer metadatos de reconstrucción de alta frecuencia y filtrar la señal de audio de banda baja decodificada con un banco de filtros de análisis para generar una señal de audio de baja banda filtrada. El método incluye además extraer una bandera que indica si se ha de ejecutar la traslación espectral o transposición armónica en los datos de audio y regenerar una porción de banda alta de la señal de audio usando la señal de audio de baja banda filtrada y los metadatos de reconstrucción de alta frecuencia de acuerdo con la bandera.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762475619P | 2017-03-23 | 2017-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2022015199A true MX2022015199A (es) | 2023-01-05 |
Family
ID=63585721
Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2022009313A MX2022009313A (es) | 2017-03-23 | 2018-03-19 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio. |
| MX2019008349A MX2019008349A (es) | 2017-03-23 | 2018-03-19 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio. |
| MX2022015198A MX2022015198A (es) | 2017-03-23 | 2019-07-11 | Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. |
| MX2022015200A MX2022015200A (es) | 2017-03-23 | 2019-07-11 | Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. |
| MX2022015199A MX2022015199A (es) | 2017-03-23 | 2019-07-11 | Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. |
| MX2020005844A MX2020005844A (es) | 2017-03-23 | 2019-07-11 | Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. |
| MX2022009312A MX2022009312A (es) | 2017-03-23 | 2019-07-11 | Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2022009313A MX2022009313A (es) | 2017-03-23 | 2018-03-19 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio. |
| MX2019008349A MX2019008349A (es) | 2017-03-23 | 2018-03-19 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio. |
| MX2022015198A MX2022015198A (es) | 2017-03-23 | 2019-07-11 | Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. |
| MX2022015200A MX2022015200A (es) | 2017-03-23 | 2019-07-11 | Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2020005844A MX2020005844A (es) | 2017-03-23 | 2019-07-11 | Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. |
| MX2022009312A MX2022009312A (es) | 2017-03-23 | 2019-07-11 | Integracion de transpositor armonico compatible con versiones anteriores para la reconstruccion de alta frecuencia de se?ales de audio. |
Country Status (26)
| Country | Link |
|---|---|
| US (7) | US10818306B2 (es) |
| EP (1) | EP3559821A4 (es) |
| JP (4) | JP6665354B2 (es) |
| KR (6) | KR20240008408A (es) |
| CN (3) | CN112863528A (es) |
| AR (6) | AR111047A1 (es) |
| AU (5) | AU2018237070B2 (es) |
| BR (2) | BR112019014125B1 (es) |
| CA (5) | CA3171727A1 (es) |
| CL (1) | CL2019001981A1 (es) |
| CO (1) | CO2019008431A2 (es) |
| EA (3) | EA202191156A1 (es) |
| EC (1) | ECSP19054232A (es) |
| GE (1) | GEP20217226B (es) |
| IL (5) | IL310208A (es) |
| MA (1) | MA47232A (es) |
| MX (7) | MX2022009313A (es) |
| NZ (2) | NZ759800A (es) |
| PE (1) | PE20191288A1 (es) |
| PH (1) | PH12019501658A1 (es) |
| SA (1) | SA519402434B1 (es) |
| SG (1) | SG11201906370TA (es) |
| TW (3) | TWI807562B (es) |
| UA (3) | UA126393C2 (es) |
| WO (1) | WO2018175347A1 (es) |
| ZA (6) | ZA201904559B (es) |
Families Citing this family (4)
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| TWI758146B (zh) * | 2015-03-13 | 2022-03-11 | 瑞典商杜比國際公司 | 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流 |
| TWI807562B (zh) | 2017-03-23 | 2023-07-01 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合 |
| TWI834582B (zh) | 2018-01-26 | 2024-03-01 | 瑞典商都比國際公司 | 用於執行一音訊信號之高頻重建之方法、音訊處理單元及非暫時性電腦可讀媒體 |
| CN113113032A (zh) * | 2020-01-10 | 2021-07-13 | 华为技术有限公司 | 一种音频编解码方法和音频编解码设备 |
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| WO2003046891A1 (en) * | 2001-11-29 | 2003-06-05 | Coding Technologies Ab | Methods for improving high frequency reconstruction |
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| AU2014211479B2 (en) * | 2013-01-29 | 2017-02-23 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio encoder, audio decoder, method for providing an encoded audio information, method for providing a decoded audio information, computer program and encoded representation using a signal-adaptive bandwidth extension |
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| TWI807562B (zh) * | 2017-03-23 | 2023-07-01 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合 |
| TWI834582B (zh) * | 2018-01-26 | 2024-03-01 | 瑞典商都比國際公司 | 用於執行一音訊信號之高頻重建之方法、音訊處理單元及非暫時性電腦可讀媒體 |
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2018
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- 2018-03-19 GE GEAP201815136A patent/GEP20217226B/en unknown
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- 2018-03-19 JP JP2019536556A patent/JP6665354B2/ja active Active
- 2018-03-19 CN CN202110086185.2A patent/CN112863527A/zh active Pending
- 2018-03-19 CA CA3171727A patent/CA3171727A1/en active Pending
- 2018-03-19 NZ NZ755366A patent/NZ755366A/en unknown
- 2018-03-19 EA EA202191156A patent/EA202191156A1/ru unknown
- 2018-03-19 UA UAA201907982A patent/UA126393C2/uk unknown
- 2018-03-19 IL IL272690A patent/IL272690B2/en unknown
- 2018-03-19 CA CA3133921A patent/CA3133921A1/en active Pending
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- 2018-03-19 BR BR122019027754-0A patent/BR122019027754B1/pt active IP Right Grant
- 2018-03-19 KR KR1020217020861A patent/KR102390360B1/ko active IP Right Grant
- 2018-03-19 US US16/484,077 patent/US10818306B2/en active Active
- 2018-03-19 KR KR1020237039405A patent/KR20230160960A/ko active Application Filing
- 2018-03-19 KR KR1020227013276A patent/KR102622804B1/ko active IP Right Grant
- 2018-03-19 KR KR1020207005362A patent/KR102275129B1/ko active IP Right Grant
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