AR101340A1 - Aparato y método para procesar una señal de audio por el uso de un filtro posterior de armónicos - Google Patents
Aparato y método para procesar una señal de audio por el uso de un filtro posterior de armónicosInfo
- Publication number
- AR101340A1 AR101340A1 ARP150102394A ARP150102394A AR101340A1 AR 101340 A1 AR101340 A1 AR 101340A1 AR P150102394 A ARP150102394 A AR P150102394A AR P150102394 A ARP150102394 A AR P150102394A AR 101340 A1 AR101340 A1 AR 101340A1
- Authority
- AR
- Argentina
- Prior art keywords
- audio signal
- filter
- processing
- harmonic
- tone offset
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 5
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
- G01L21/02—Vacuum gauges having a compression chamber in which gas, whose pressure is to be measured, is compressed
-
- 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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
-
- 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
- G10L19/0212—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 using orthogonal transformation
-
- 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
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)
- General Physics & Mathematics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Stereophonic System (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
Se proporciona un aparato para procesar una señal de audio que tiene asociada con el mismo una información de desfase de tono y una información de ganancia, que comprende un conversor de dominio (100) para convertir una primera representación de dominio de la señal de audio en una segunda representación de dominio de la señal de audio; y un filtro posterior de armónicos (104) para filtrar la segunda representación de dominio de la señal de audio, en la que el filtro posterior está basado en una función de transferencia que comprende un numerador y un denominador, en la que el numerador comprende un valor de ganancia indicado por la información de ganancia, y en la que el denominador comprende una parte entera de un desfase de tono indicado por la información de desfase de tono y un filtro de pulsaciones múltiples que depende de una parte fraccionaria del desfase de tono.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14178820.8A EP2980799A1 (en) | 2014-07-28 | 2014-07-28 | Apparatus and method for processing an audio signal using a harmonic post-filter |
Publications (1)
Publication Number | Publication Date |
---|---|
AR101340A1 true AR101340A1 (es) | 2016-12-14 |
Family
ID=51224878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP150102394A AR101340A1 (es) | 2014-07-28 | 2015-07-28 | Aparato y método para procesar una señal de audio por el uso de un filtro posterior de armónicos |
Country Status (17)
Country | Link |
---|---|
US (4) | US10242688B2 (es) |
EP (2) | EP2980799A1 (es) |
JP (4) | JP6546264B2 (es) |
KR (1) | KR101959211B1 (es) |
CN (2) | CN112420061A (es) |
AR (1) | AR101340A1 (es) |
AU (1) | AU2015295603B2 (es) |
CA (1) | CA2955255C (es) |
ES (1) | ES2676584T3 (es) |
MX (1) | MX360555B (es) |
MY (1) | MY179023A (es) |
PL (1) | PL3175454T3 (es) |
PT (1) | PT3175454T (es) |
RU (1) | RU2665259C1 (es) |
SG (1) | SG11201700696UA (es) |
TW (1) | TWI590238B (es) |
WO (1) | WO2016016121A1 (es) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2980799A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for processing an audio signal using a harmonic post-filter |
SG11201509526SA (en) * | 2014-07-28 | 2017-04-27 | Fraunhofer Ges Forschung | Apparatus and method for selecting one of a first encoding algorithm and a second encoding algorithm using harmonics reduction |
EP3483880A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Temporal noise shaping |
EP3483884A1 (en) * | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Signal filtering |
EP3483882A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controlling bandwidth in encoders and/or decoders |
EP3483886A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Selecting pitch lag |
WO2019091573A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters |
EP3483878A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio decoder supporting a set of different loss concealment tools |
EP3483883A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio coding and decoding with selective postfiltering |
WO2019091576A1 (en) | 2017-11-10 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits |
EP3483879A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Analysis/synthesis windowing function for modulated lapped transformation |
JP6989003B2 (ja) * | 2018-05-10 | 2022-01-05 | 日本電信電話株式会社 | ピッチ強調装置、その方法、プログラム、および記録媒体 |
AU2020205729A1 (en) * | 2019-01-13 | 2021-08-05 | Huawei Technologies Co., Ltd. | High resolution audio coding |
CN112467744B (zh) * | 2020-12-11 | 2022-06-17 | 东北电力大学 | 面向配网频率偏移的apf抗频扰谐波指令电流预测方法 |
EP4120256A1 (en) * | 2021-07-14 | 2023-01-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Processor for generating a prediction spectrum based on long-term prediction and/or harmonic post-filtering |
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EP2980799A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for processing an audio signal using a harmonic post-filter |
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2014
- 2014-07-28 EP EP14178820.8A patent/EP2980799A1/en not_active Withdrawn
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2015
- 2015-07-21 TW TW104123536A patent/TWI590238B/zh active
- 2015-07-24 CA CA2955255A patent/CA2955255C/en active Active
- 2015-07-24 CN CN202011296831.XA patent/CN112420061A/zh active Pending
- 2015-07-24 JP JP2017504060A patent/JP6546264B2/ja active Active
- 2015-07-24 SG SG11201700696UA patent/SG11201700696UA/en unknown
- 2015-07-24 PT PT15742238T patent/PT3175454T/pt unknown
- 2015-07-24 AU AU2015295603A patent/AU2015295603B2/en active Active
- 2015-07-24 WO PCT/EP2015/066998 patent/WO2016016121A1/en active Application Filing
- 2015-07-24 CN CN201580040785.8A patent/CN106663444B/zh active Active
- 2015-07-24 MX MX2017001242A patent/MX360555B/es active IP Right Grant
- 2015-07-24 PL PL15742238T patent/PL3175454T3/pl unknown
- 2015-07-24 ES ES15742238.7T patent/ES2676584T3/es active Active
- 2015-07-24 MY MYPI2017000140A patent/MY179023A/en unknown
- 2015-07-24 EP EP15742238.7A patent/EP3175454B1/en active Active
- 2015-07-24 RU RU2017106109A patent/RU2665259C1/ru active
- 2015-07-24 KR KR1020177004542A patent/KR101959211B1/ko active IP Right Grant
- 2015-07-28 AR ARP150102394A patent/AR101340A1/es active IP Right Grant
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2017
- 2017-01-27 US US15/417,231 patent/US10242688B2/en active Active
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2019
- 2019-02-27 US US16/288,018 patent/US11037580B2/en active Active
- 2019-06-20 JP JP2019114240A patent/JP6877488B2/ja active Active
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2021
- 2021-01-08 US US17/144,979 patent/US11694704B2/en active Active
- 2021-01-16 JP JP2021005407A patent/JP7340553B2/ja active Active
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2023
- 2023-03-11 JP JP2023038178A patent/JP2023072014A/ja active Pending
- 2023-05-16 US US18/197,724 patent/US20230282223A1/en active Pending
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