MX360555B - Aparato y metodo para procesar una senal de audio por el uso de un filtro posterior de armonicos. - Google Patents
Aparato y metodo para procesar una senal de audio por el uso de un filtro posterior de armonicos.Info
- Publication number
- MX360555B MX360555B MX2017001242A MX2017001242A MX360555B MX 360555 B MX360555 B MX 360555B MX 2017001242 A MX2017001242 A MX 2017001242A MX 2017001242 A MX2017001242 A MX 2017001242A MX 360555 B MX360555 B MX 360555B
- Authority
- MX
- Mexico
- Prior art keywords
- audio signal
- filter
- pitch lag
- processing
- information
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 5
- 238000001914 filtration 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
- G10L19/04—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 senal de audio que tiene asociada con el mismo una informacion de desfase de tono y una informacion de ganancia, que comprende un conversor de dominio (100) para convertir una primera representacion de dominio de la senal de audio en una segunda representacion de dominio de la senal de audio; y un filtro posterior de armonicos (104) para filtrar la segunda representacion de dominio de la senal de audio, en la que el filtro posterior esta basado en una funcion de transferencia que comprende un numerador y un denominador, en la que el numerador comprende un valor de ganancia indicado por la informacion de ganancia, y en la que el denominador comprende una parte entera de un desfase de tono indicado por la informacion de desfase de tono y un filtro de pulsaciones multiples que depende de una parte fraccionaria del desfase de tono.
Applications Claiming Priority (2)
| 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 |
| PCT/EP2015/066998 WO2016016121A1 (en) | 2014-07-28 | 2015-07-24 | Apparatus and method for processing an audio signal using a harmonic post-filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2017001242A MX2017001242A (es) | 2017-07-07 |
| MX360555B true MX360555B (es) | 2018-11-07 |
Family
ID=51224878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2017001242A MX360555B (es) | 2014-07-28 | 2015-07-24 | Aparato y metodo para procesar una senal de audio por el uso de un filtro posterior de armonicos. |
Country Status (17)
| Country | Link |
|---|---|
| US (4) | US10242688B2 (es) |
| EP (2) | EP2980799A1 (es) |
| JP (4) | JP6546264B2 (es) |
| KR (1) | KR101959211B1 (es) |
| CN (2) | CN106663444B (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 (16)
| 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 |
| EP3000110B1 (en) * | 2014-07-28 | 2016-12-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Selection of one of a first encoding algorithm and a second encoding algorithm using harmonics reduction |
| EP3483884A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Signal filtering |
| 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 |
| EP3483882A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Controlling bandwidth in encoders and/or decoders |
| EP3483883A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio coding and decoding with selective postfiltering |
| 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 |
| EP3483880A1 (en) | 2017-11-10 | 2019-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Temporal noise shaping |
| 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 |
| 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 |
| CN112088404B (zh) | 2018-05-10 | 2024-05-17 | 日本电信电话株式会社 | 基音强调装置、其方法、以及记录介质 |
| BR112021013720A2 (pt) * | 2019-01-13 | 2021-09-21 | Huawei Technologies Co., Ltd. | Método implementado por computador para codificação de áudio, dispositivo eletrônico e meio legível por computador não transitório |
| WO2021214280A1 (en) * | 2020-04-24 | 2021-10-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Low cost adaptation of bass post-filter |
| 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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| US5012517A (en) | 1989-04-18 | 1991-04-30 | Pacific Communication Science, Inc. | Adaptive transform coder having long term predictor |
| DE69029120T2 (de) * | 1989-04-25 | 1997-04-30 | Toshiba Kawasaki Kk | Stimmenkodierer |
| US5293449A (en) * | 1990-11-23 | 1994-03-08 | Comsat Corporation | Analysis-by-synthesis 2,4 kbps linear predictive speech codec |
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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 |
-
2014
- 2014-07-28 EP EP14178820.8A patent/EP2980799A1/en not_active Withdrawn
-
2015
- 2015-07-21 TW TW104123536A patent/TWI590238B/zh active
- 2015-07-24 MX MX2017001242A patent/MX360555B/es active IP Right Grant
- 2015-07-24 WO PCT/EP2015/066998 patent/WO2016016121A1/en active Application Filing
- 2015-07-24 ES ES15742238.7T patent/ES2676584T3/es active Active
- 2015-07-24 RU RU2017106109A patent/RU2665259C1/ru active
- 2015-07-24 AU AU2015295603A patent/AU2015295603B2/en active Active
- 2015-07-24 PT PT15742238T patent/PT3175454T/pt unknown
- 2015-07-24 CA CA2955255A patent/CA2955255C/en active Active
- 2015-07-24 MY MYPI2017000140A patent/MY179023A/en unknown
- 2015-07-24 SG SG11201700696UA patent/SG11201700696UA/en unknown
- 2015-07-24 KR KR1020177004542A patent/KR101959211B1/ko active IP Right Grant
- 2015-07-24 CN CN201580040785.8A patent/CN106663444B/zh active Active
- 2015-07-24 JP JP2017504060A patent/JP6546264B2/ja active Active
- 2015-07-24 EP EP15742238.7A patent/EP3175454B1/en active Active
- 2015-07-24 CN CN202011296831.XA patent/CN112420061B/zh active Active
- 2015-07-24 PL PL15742238T patent/PL3175454T3/pl unknown
- 2015-07-28 AR ARP150102394A patent/AR101340A1/es active IP Right Grant
-
2017
- 2017-01-27 US US15/417,231 patent/US10242688B2/en active Active
-
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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