MX2020011206A - Integracion de tecnicas de reconstruccion de alta frecuencia con retraso post-procesamiento reducido. - Google Patents
Integracion de tecnicas de reconstruccion de alta frecuencia con retraso post-procesamiento reducido.Info
- Publication number
- MX2020011206A MX2020011206A MX2020011206A MX2020011206A MX2020011206A MX 2020011206 A MX2020011206 A MX 2020011206A MX 2020011206 A MX2020011206 A MX 2020011206A MX 2020011206 A MX2020011206 A MX 2020011206A MX 2020011206 A MX2020011206 A MX 2020011206A
- Authority
- MX
- Mexico
- Prior art keywords
- high frequency
- audio signal
- audio
- integration
- lowband
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 5
- 230000010354 integration Effects 0.000 title 1
- 230000005236 sound signal Effects 0.000 abstract 5
- 238000001914 filtration Methods 0.000 abstract 1
- 238000012805 post-processing Methods 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 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
- 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
- G10L21/0388—Details of processing therefor
-
- 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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
Abstract
Se divulga 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 además extraer metadatos de reconstrucción de alta frecuencia y filtrar la señal de audio de banda baja decodificada con un banco de filtro de análisis para generar una señal de audio de banda baja filtrada. El método también incluye extraer una bandera que indica si se ha de realizar alguna de traducción espectral o transposición armónica sobre los datos de audio y regenerar una porción de banda alta de la señal de audio usando la señal de audio de banda baja filtrada y los metadatos de reconstrucción de alta frecuencia de acuerdo con la bandera. La regeneración de alta frecuencia se realiza como una operación de post-procesamiento con un retraso de 3010 muestras por canal de audio.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18169156 | 2018-04-25 | ||
PCT/EP2019/060600 WO2019207036A1 (en) | 2018-04-25 | 2019-04-25 | Integration of high frequency audio reconstruction techniques |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2020011206A true MX2020011206A (es) | 2020-11-13 |
Family
ID=62063367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2020011206A MX2020011206A (es) | 2018-04-25 | 2019-04-25 | Integracion de tecnicas de reconstruccion de alta frecuencia con retraso post-procesamiento reducido. |
Country Status (15)
Country | Link |
---|---|
US (7) | US11527256B2 (es) |
EP (1) | EP3785260A1 (es) |
JP (2) | JP7252976B2 (es) |
KR (1) | KR20210005164A (es) |
CN (1) | CN112189231A (es) |
AU (3) | AU2019258524B2 (es) |
BR (1) | BR112020021832A2 (es) |
CA (1) | CA3098064A1 (es) |
CL (1) | CL2020002745A1 (es) |
IL (3) | IL303445B1 (es) |
MA (1) | MA52530A (es) |
MX (1) | MX2020011206A (es) |
SG (1) | SG11202010374VA (es) |
WO (1) | WO2019207036A1 (es) |
ZA (1) | ZA202006518B (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113436603B (zh) * | 2021-06-28 | 2023-05-02 | 北京达佳互联信息技术有限公司 | 声码器的训练方法和装置及合成音频信号的方法和声码器 |
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2019
- 2019-04-25 IL IL303445A patent/IL303445B1/en unknown
- 2019-04-25 MX MX2020011206A patent/MX2020011206A/es unknown
- 2019-04-25 BR BR112020021832-4A patent/BR112020021832A2/pt unknown
- 2019-04-25 CA CA3098064A patent/CA3098064A1/en active Pending
- 2019-04-25 MA MA052530A patent/MA52530A/fr unknown
- 2019-04-25 US US17/050,669 patent/US11527256B2/en active Active
- 2019-04-25 CN CN201980034785.5A patent/CN112189231A/zh active Pending
- 2019-04-25 JP JP2020559398A patent/JP7252976B2/ja active Active
- 2019-04-25 IL IL278223A patent/IL278223B2/en unknown
- 2019-04-25 EP EP19719519.1A patent/EP3785260A1/en not_active Ceased
- 2019-04-25 KR KR1020207033978A patent/KR20210005164A/ko active Search and Examination
- 2019-04-25 IL IL310202A patent/IL310202A/en unknown
- 2019-04-25 SG SG11202010374VA patent/SG11202010374VA/en unknown
- 2019-04-25 AU AU2019258524A patent/AU2019258524B2/en active Active
- 2019-04-25 WO PCT/EP2019/060600 patent/WO2019207036A1/en active Application Filing
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2020
- 2020-10-20 ZA ZA2020/06518A patent/ZA202006518B/en unknown
- 2020-10-22 CL CL2020002745A patent/CL2020002745A1/es unknown
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2022
- 2022-11-15 US US17/987,545 patent/US11810589B2/en active Active
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2023
- 2023-02-23 US US18/113,391 patent/US11810590B2/en active Active
- 2023-02-23 US US18/113,418 patent/US11862185B2/en active Active
- 2023-02-23 US US18/113,406 patent/US11810592B2/en active Active
- 2023-02-23 US US18/113,397 patent/US11810591B2/en active Active
- 2023-03-24 JP JP2023048111A patent/JP7493076B2/ja active Active
- 2023-11-14 US US18/508,415 patent/US20240087590A1/en active Pending
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2024
- 2024-04-10 AU AU2024202301A patent/AU2024202301A1/en active Pending
- 2024-04-11 AU AU2024202352A patent/AU2024202352A1/en active Pending
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