BR112017024480A2 - pós-processador, pré-processador, codificador de áudio, decodificador de áudio e métodos relacionados para aprimoramento do processamento transiente - Google Patents
pós-processador, pré-processador, codificador de áudio, decodificador de áudio e métodos relacionados para aprimoramento do processamento transienteInfo
- Publication number
- BR112017024480A2 BR112017024480A2 BR112017024480-2A BR112017024480A BR112017024480A2 BR 112017024480 A2 BR112017024480 A2 BR 112017024480A2 BR 112017024480 A BR112017024480 A BR 112017024480A BR 112017024480 A2 BR112017024480 A2 BR 112017024480A2
- Authority
- BR
- Brazil
- Prior art keywords
- high frequency
- audio
- preprocessor
- postprocessor
- band
- Prior art date
Links
- 230000002708 enhancing effect Effects 0.000 title 1
- 230000001052 transient effect Effects 0.000 title 1
- 230000005236 sound signal Effects 0.000 abstract 3
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 238000012805 post-processing Methods 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
- G10L19/02—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
- G10L19/032—Quantisation or dequantisation of spectral components
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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
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/005—Tone control or bandwidth control in amplifiers of digital signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
- H03G5/165—Equalizers; Volume or gain control in limited frequency bands
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Stereophonic System (AREA)
Abstract
um pós-processador de áudio para pós-processamento de um sinal de áudio tendo uma informação de ganho de alta frequência variável no tempo como informação lateral compreende: um extrator de banda para extrair uma banda de alta frequência do sinal de áudio e uma banda de baixa frequência do sinal de áudio; um processador de banda alta para realização de uma modificação variável no tempo da banda de alta frequência de acordo com a informação de ganho de alta frequência variável no tempo para obter uma banda de alta frequência processada; e um combinador para combinar a banda de alta frequência processada e a banda de baixa frequência. além disso, um pré-processador é ilustrado.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16156200 | 2016-02-17 | ||
EP16156200.4 | 2016-02-17 | ||
PCT/EP2017/053068 WO2017140600A1 (en) | 2016-02-17 | 2017-02-10 | Post-processor, pre-processor, audio encoder, audio decoder and related methods for enhancing transient processing |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112017024480A2 true BR112017024480A2 (pt) | 2018-07-24 |
Family
ID=55361427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112017024480-2A BR112017024480A2 (pt) | 2016-02-17 | 2017-02-10 | pós-processador, pré-processador, codificador de áudio, decodificador de áudio e métodos relacionados para aprimoramento do processamento transiente |
Country Status (18)
Country | Link |
---|---|
US (3) | US10720170B2 (pt) |
EP (2) | EP3417544B1 (pt) |
JP (2) | JP6603414B2 (pt) |
KR (1) | KR102067044B1 (pt) |
CN (1) | CN107925388B (pt) |
AR (1) | AR107662A1 (pt) |
AU (1) | AU2017219696B2 (pt) |
BR (1) | BR112017024480A2 (pt) |
CA (1) | CA2985019C (pt) |
ES (1) | ES2771200T3 (pt) |
MX (1) | MX371223B (pt) |
MY (1) | MY191093A (pt) |
PL (1) | PL3417544T3 (pt) |
PT (1) | PT3417544T (pt) |
RU (1) | RU2685024C1 (pt) |
TW (1) | TWI618053B (pt) |
WO (1) | WO2017140600A1 (pt) |
ZA (1) | ZA201707336B (pt) |
Families Citing this family (17)
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WO2017050398A1 (en) * | 2015-09-25 | 2017-03-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Encoder, decoder and methods for signal-adaptive switching of the overlap ratio in audio transform coding |
US10861475B2 (en) * | 2015-11-10 | 2020-12-08 | Dolby International Ab | Signal-dependent companding system and method to reduce quantization noise |
RU2685024C1 (ru) * | 2016-02-17 | 2019-04-16 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Постпроцессор, препроцессор, аудиокодер, аудиодекодер и соответствующие способы для улучшения обработки транзиентов |
US10559315B2 (en) * | 2018-03-28 | 2020-02-11 | Qualcomm Incorporated | Extended-range coarse-fine quantization for audio coding |
EP3841572A1 (en) | 2018-08-21 | 2021-06-30 | Dolby International AB | Coding dense transient events with companding |
US20200402523A1 (en) * | 2019-06-24 | 2020-12-24 | Qualcomm Incorporated | Psychoacoustic audio coding of ambisonic audio data |
US11545166B2 (en) | 2019-07-02 | 2023-01-03 | Dolby International Ab | Using metadata to aggregate signal processing operations |
US11032644B2 (en) | 2019-10-10 | 2021-06-08 | Boomcloud 360, Inc. | Subband spatial and crosstalk processing using spectrally orthogonal audio components |
WO2021126155A1 (en) | 2019-12-16 | 2021-06-24 | Google Llc | Amplitude-independent window sizes in audio encoding |
CN111916090B (zh) * | 2020-08-17 | 2024-03-05 | 北京百瑞互联技术股份有限公司 | 一种lc3编码器近奈奎斯特频率信号检测方法、检测器、存储介质及设备 |
TWI772930B (zh) * | 2020-10-21 | 2022-08-01 | 美商音美得股份有限公司 | 適合即時應用之分析濾波器組及其運算程序、基於分析濾波器組之信號處理系統及程序 |
WO2022097242A1 (ja) * | 2020-11-05 | 2022-05-12 | 日本電信電話株式会社 | 音信号高域補償方法、音信号後処理方法、音信号復号方法、これらの装置、プログラム、および記録媒体 |
WO2022097240A1 (ja) * | 2020-11-05 | 2022-05-12 | 日本電信電話株式会社 | 音信号高域補償方法、音信号後処理方法、音信号復号方法、これらの装置、プログラム、および記録媒体 |
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RU2685024C1 (ru) * | 2016-02-17 | 2019-04-16 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Постпроцессор, препроцессор, аудиокодер, аудиодекодер и соответствующие способы для улучшения обработки транзиентов |
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2017
- 2017-02-10 RU RU2017143564A patent/RU2685024C1/ru active
- 2017-02-10 KR KR1020177036732A patent/KR102067044B1/ko active IP Right Grant
- 2017-02-10 ES ES17703771T patent/ES2771200T3/es active Active
- 2017-02-10 CN CN201780002163.5A patent/CN107925388B/zh active Active
- 2017-02-10 EP EP17703771.0A patent/EP3417544B1/en active Active
- 2017-02-10 EP EP19208046.3A patent/EP3627507A1/en active Pending
- 2017-02-10 PT PT177037710T patent/PT3417544T/pt unknown
- 2017-02-10 WO PCT/EP2017/053068 patent/WO2017140600A1/en active Application Filing
- 2017-02-10 JP JP2018527783A patent/JP6603414B2/ja active Active
- 2017-02-10 MX MX2017014734A patent/MX371223B/es active IP Right Grant
- 2017-02-10 CA CA2985019A patent/CA2985019C/en active Active
- 2017-02-10 BR BR112017024480-2A patent/BR112017024480A2/pt active Search and Examination
- 2017-02-10 AU AU2017219696A patent/AU2017219696B2/en active Active
- 2017-02-10 MY MYPI2017001635A patent/MY191093A/en unknown
- 2017-02-10 PL PL17703771T patent/PL3417544T3/pl unknown
- 2017-02-17 AR ARP170100408A patent/AR107662A1/es active IP Right Grant
- 2017-02-17 TW TW106105242A patent/TWI618053B/zh active
- 2017-10-27 ZA ZA2017/07336A patent/ZA201707336B/en unknown
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2018
- 2018-01-30 US US15/884,190 patent/US10720170B2/en active Active
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2019
- 2019-10-10 JP JP2019186928A patent/JP7007344B2/ja active Active
- 2019-11-19 US US16/688,938 patent/US11094331B2/en active Active
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2020
- 2020-06-04 US US16/892,648 patent/US20200402520A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US11094331B2 (en) | 2021-08-17 |
ZA201707336B (en) | 2019-02-27 |
PT3417544T (pt) | 2020-03-02 |
JP2019500641A (ja) | 2019-01-10 |
MY191093A (en) | 2022-05-30 |
CN107925388A (zh) | 2018-04-17 |
US10720170B2 (en) | 2020-07-21 |
CA2985019A1 (en) | 2017-08-24 |
TWI618053B (zh) | 2018-03-11 |
JP2020024440A (ja) | 2020-02-13 |
KR102067044B1 (ko) | 2020-01-17 |
AR107662A1 (es) | 2018-05-23 |
US20200090670A1 (en) | 2020-03-19 |
JP7007344B2 (ja) | 2022-01-24 |
PL3417544T3 (pl) | 2020-06-29 |
EP3417544B1 (en) | 2019-12-04 |
WO2017140600A1 (en) | 2017-08-24 |
CA2985019C (en) | 2022-05-03 |
TW201732784A (zh) | 2017-09-16 |
EP3627507A1 (en) | 2020-03-25 |
US20180190303A1 (en) | 2018-07-05 |
MX2017014734A (es) | 2018-06-28 |
RU2685024C1 (ru) | 2019-04-16 |
MX371223B (es) | 2020-01-09 |
AU2017219696B2 (en) | 2018-11-08 |
ES2771200T3 (es) | 2020-07-06 |
AU2017219696A1 (en) | 2017-11-16 |
EP3417544A1 (en) | 2018-12-26 |
KR20180016417A (ko) | 2018-02-14 |
JP6603414B2 (ja) | 2019-11-06 |
US20200402520A1 (en) | 2020-12-24 |
CN107925388B (zh) | 2021-11-30 |
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