AR111047A1 - 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
- AR111047A1 AR111047A1 ARP180100361A ARP180100361A AR111047A1 AR 111047 A1 AR111047 A1 AR 111047A1 AR P180100361 A ARP180100361 A AR P180100361A AR P180100361 A ARP180100361 A AR P180100361A AR 111047 A1 AR111047 A1 AR 111047A1
- Authority
- AR
- Argentina
- Prior art keywords
- high frequency
- audio signal
- low band
- harmonic
- transpositor
- Prior art date
Links
- 230000010354 integration Effects 0.000 title 1
- 230000005236 sound signal Effects 0.000 abstract 5
- 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 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
- G10L19/26—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 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
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- 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
- G10L19/02—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 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
- 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 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
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- 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
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
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 |
|---|---|
| AR111047A1 true AR111047A1 (es) | 2019-05-29 |
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 |
| 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 |
| 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 |
| 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 |
Family Applications After (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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 |
Country Status (26)
| Country | Link |
|---|---|
| US (7) | US10818306B2 (es) |
| EP (1) | EP3559821A4 (es) |
| JP (4) | JP6665354B2 (es) |
| KR (6) | KR102275129B1 (es) |
| CN (3) | CN110178180B (es) |
| AR (6) | AR111047A1 (es) |
| AU (5) | AU2018237070B2 (es) |
| BR (2) | BR122019027754B1 (es) |
| CA (5) | CA3171727A1 (es) |
| CL (1) | CL2019001981A1 (es) |
| CO (1) | CO2019008431A2 (es) |
| EA (3) | EA036090B1 (es) |
| EC (1) | ECSP19054232A (es) |
| GE (1) | GEP20217226B (es) |
| IL (5) | IL310208A (es) |
| MA (1) | MA47232A (es) |
| MX (7) | MX2019008349A (es) |
| NZ (4) | 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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| 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 |
| 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 |
| TWI809289B (zh) | 2018-01-26 | 2023-07-21 | 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 |
| 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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| 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 |
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2018
- 2018-02-07 TW TW110149287A patent/TWI807562B/zh active
- 2018-02-07 TW TW112122579A patent/TW202341126A/zh unknown
- 2018-02-07 TW TW107104234A patent/TWI752166B/zh active
- 2018-02-15 AR ARP180100361A patent/AR111047A1/es active IP Right Grant
- 2018-03-19 KR KR1020207005362A patent/KR102275129B1/ko active IP Right Grant
- 2018-03-19 UA UAA201907982A patent/UA126393C2/uk unknown
- 2018-03-19 CA CA3171727A patent/CA3171727A1/en active Pending
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- 2018-03-19 WO PCT/US2018/023183 patent/WO2018175347A1/en active Application Filing
- 2018-03-19 CA CA3049600A patent/CA3049600C/en active Active
- 2018-03-19 PE PE2019001486A patent/PE20191288A1/es unknown
- 2018-03-19 KR KR1020247000374A patent/KR20240008408A/ko active Application Filing
- 2018-03-19 KR KR1020237039405A patent/KR20230160960A/ko active Application Filing
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- 2018-03-19 NZ NZ755366A patent/NZ755366A/en unknown
- 2018-03-19 IL IL310208A patent/IL310208A/en unknown
- 2018-03-19 GE GEAP201815136A patent/GEP20217226B/en unknown
- 2018-03-19 EP EP18770254.3A patent/EP3559821A4/en active Pending
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- 2018-03-19 SG SG11201906370TA patent/SG11201906370TA/en unknown
- 2018-03-19 MA MA047232A patent/MA47232A/fr unknown
- 2018-03-19 KR KR1020197019117A patent/KR102083768B1/ko active IP Right Grant
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2019
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2020
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