AR120464A2 - Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio - Google Patents
Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audioInfo
- Publication number
- AR120464A2 AR120464A2 ARP200103155A ARP200103155A AR120464A2 AR 120464 A2 AR120464 A2 AR 120464A2 AR P200103155 A ARP200103155 A AR P200103155A AR P200103155 A ARP200103155 A AR P200103155A AR 120464 A2 AR120464 A2 AR 120464A2
- Authority
- AR
- Argentina
- Prior art keywords
- audio signal
- frequency reconstruction
- band
- harmonic
- transpositor
- Prior art date
Links
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 OR CALCULATING; 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
- G10L19/22—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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Mathematical Physics (AREA)
- Data Mining & Analysis (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Algebra (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Detergent Compositions (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Peptides Or Proteins (AREA)
- Materials For Photolithography (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Stereophonic System (AREA)
- Lubricants (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Seasonings (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 |
|---|---|
| AR120464A2 true AR120464A2 (es) | 2022-02-16 |
Family
ID=63585721
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP180100361A AR111047A1 (es) | 2017-03-23 | 2018-02-15 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
| ARP190102291A AR115947A2 (es) | 2017-03-23 | 2019-08-12 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
| ARP200103155A AR120464A2 (es) | 2017-03-23 | 2020-11-13 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
| ARP200103158A AR120467A2 (es) | 2017-03-23 | 2020-11-13 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
| ARP200103156A AR120465A2 (es) | 2017-03-23 | 2020-11-13 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
| ARP200103157A AR120466A2 (es) | 2017-03-23 | 2020-11-13 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP180100361A AR111047A1 (es) | 2017-03-23 | 2018-02-15 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
| ARP190102291A AR115947A2 (es) | 2017-03-23 | 2019-08-12 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP200103158A AR120467A2 (es) | 2017-03-23 | 2020-11-13 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
| ARP200103156A AR120465A2 (es) | 2017-03-23 | 2020-11-13 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
| ARP200103157A AR120466A2 (es) | 2017-03-23 | 2020-11-13 | Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio |
Country Status (29)
| Country | Link |
|---|---|
| US (10) | US10818306B2 (es) |
| EP (6) | EP4528728B1 (es) |
| JP (7) | JP6665354B2 (es) |
| KR (8) | KR102702697B1 (es) |
| CN (8) | CN112863527B (es) |
| AR (6) | AR111047A1 (es) |
| AU (8) | AU2018237070B2 (es) |
| BR (2) | BR112019014125B1 (es) |
| CA (5) | CA3133923A1 (es) |
| CL (1) | CL2019001981A1 (es) |
| CO (1) | CO2019008431A2 (es) |
| EA (3) | EA202191156A1 (es) |
| EC (1) | ECSP19054232A (es) |
| ES (4) | ES3048630T3 (es) |
| GE (1) | GEP20217226B (es) |
| HU (2) | HUE070839T2 (es) |
| IL (8) | IL317234A (es) |
| MA (1) | MA47232A (es) |
| MX (7) | MX372634B (es) |
| NZ (2) | NZ759800A (es) |
| PE (4) | PE20251019A1 (es) |
| PH (1) | PH12019501658A1 (es) |
| PL (4) | PL4528728T3 (es) |
| SA (2) | SA519402434B1 (es) |
| SG (1) | SG11201906370TA (es) |
| TW (7) | TWI901542B (es) |
| UA (3) | UA126401C2 (es) |
| WO (1) | WO2018175347A1 (es) |
| ZA (8) | ZA201904559B (es) |
Families Citing this family (6)
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| TWI693594B (zh) | 2015-03-13 | 2020-05-11 | 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 |
| TWI901542B (zh) * | 2017-03-23 | 2025-10-11 | 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 |
| TWI895201B (zh) | 2018-01-26 | 2025-08-21 | 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 |
| EP4014506B1 (en) * | 2019-08-15 | 2023-01-11 | Dolby International AB | Methods and devices for generation and processing of modified audio bitstreams |
| CN113113032B (zh) * | 2020-01-10 | 2024-08-09 | 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 |
| EP4243014A4 (en) | 2021-01-25 | 2024-07-17 | Samsung Electronics Co., Ltd. | DEVICE AND METHOD FOR PROCESSING A MULTI-CHANNEL AUDIO SIGNAL |
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| TWI901542B (zh) * | 2017-03-23 | 2025-10-11 | 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 |
| TWI895201B (zh) * | 2018-01-26 | 2025-08-21 | 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
- 2018-02-07 TW TW114112877A patent/TWI901542B/zh active
- 2018-02-07 TW TW107104234A patent/TWI752166B/zh active
- 2018-02-07 TW TW112122579A patent/TWI873683B/zh active
- 2018-02-07 TW TW114130998A patent/TW202546815A/zh unknown
- 2018-02-07 TW TW110149287A patent/TWI807562B/zh active
- 2018-02-07 TW TW114130997A patent/TW202546814A/zh unknown
- 2018-02-07 TW TW114112891A patent/TWI901543B/zh active
- 2018-02-15 AR ARP180100361A patent/AR111047A1/es active IP Right Grant
- 2018-03-19 IL IL317234A patent/IL317234A/en unknown
- 2018-03-19 PL PL25156638.6T patent/PL4528728T3/pl unknown
- 2018-03-19 EA EA202191156A patent/EA202191156A1/ru unknown
- 2018-03-19 KR KR1020237039405A patent/KR102702697B1/ko active Active
- 2018-03-19 KR KR1020217020861A patent/KR102390360B1/ko active Active
- 2018-03-19 WO PCT/US2018/023183 patent/WO2018175347A1/en not_active Ceased
- 2018-03-19 MX MX2019008349A patent/MX372634B/es active IP Right Grant
- 2018-03-19 IL IL305626A patent/IL305626B2/en unknown
- 2018-03-19 CN CN202110086185.2A patent/CN112863527B/zh active Active
- 2018-03-19 MA MA047232A patent/MA47232A/fr unknown
- 2018-03-19 ES ES25156639T patent/ES3048630T3/es active Active
- 2018-03-19 EP EP25156638.6A patent/EP4528728B1/en active Active
- 2018-03-19 PL PL25156641.0T patent/PL4550324T3/pl unknown
- 2018-03-19 AU AU2018237070A patent/AU2018237070B2/en active Active
- 2018-03-19 CA CA3133923A patent/CA3133923A1/en active Pending
- 2018-03-19 IL IL326746A patent/IL326746A/en unknown
- 2018-03-19 PE PE2024002128A patent/PE20251019A1/es unknown
- 2018-03-19 CA CA3049600A patent/CA3049600C/en active Active
- 2018-03-19 CN CN202410639126.7A patent/CN118380004A/zh active Pending
- 2018-03-19 UA UAA201912129A patent/UA126401C2/uk unknown
- 2018-03-19 BR BR112019014125-1A patent/BR112019014125B1/pt active IP Right Grant
- 2018-03-19 UA UAA202100914A patent/UA126719C2/uk unknown
- 2018-03-19 PE PE2024002127A patent/PE20251451A1/es unknown
- 2018-03-19 IL IL313477A patent/IL313477B2/en unknown
- 2018-03-19 SG SG11201906370TA patent/SG11201906370TA/en unknown
- 2018-03-19 ES ES25156638T patent/ES3046367T3/es active Active
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