MX2022013100A - Adaptacion de bajo costo de posfiltro de graves. - Google Patents
Adaptacion de bajo costo de posfiltro de graves.Info
- Publication number
- MX2022013100A MX2022013100A MX2022013100A MX2022013100A MX2022013100A MX 2022013100 A MX2022013100 A MX 2022013100A MX 2022013100 A MX2022013100 A MX 2022013100A MX 2022013100 A MX2022013100 A MX 2022013100A MX 2022013100 A MX2022013100 A MX 2022013100A
- Authority
- MX
- Mexico
- Prior art keywords
- signal
- post
- decoded
- primary
- decoder
- Prior art date
Links
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
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Un método y un decodificador para la decodificación de audio, en donde una señal primaria codificada se decodifica para formar una señal primaria decodificada, seguida de un posfiltrado de la señal primaria decodificada para formar una señal posfiltrada, en donde una señal de salida del decodificador es una de la señal primaria decodificada y la señal posfiltrada. Se obtiene una estimación de energía de al menos una parte de un espectro de frecuencia de la señal primaria que está siendo reconstruida por el decodificador y un análisis de las discontinuidades en el dominio de tiempo causadas por el posfiltrado de la señal primaria decodificada. A partir de la estimación de energía y el análisis de discontinuidades obtenido se genera una variable de decisión. La variable de decisión se compara con un umbral y la señal de salida se establece para que sea la señal primaria decodificada o la señal posfiltrada en función de la comparación de la variable de decisión con el umbral.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063014917P | 2020-04-24 | 2020-04-24 | |
| PCT/EP2021/060643 WO2021214280A1 (en) | 2020-04-24 | 2021-04-23 | Low cost adaptation of bass post-filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2022013100A true MX2022013100A (es) | 2022-12-08 |
Family
ID=75674835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2022013100A MX2022013100A (es) | 2020-04-24 | 2021-04-23 | Adaptacion de bajo costo de posfiltro de graves. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20230154479A1 (es) |
| EP (2) | EP4139919B1 (es) |
| JP (3) | JP7504216B2 (es) |
| CN (2) | CN115428069A (es) |
| ES (1) | ES2995244T3 (es) |
| MX (1) | MX2022013100A (es) |
| WO (1) | WO2021214280A1 (es) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3270922B2 (ja) * | 1996-09-09 | 2002-04-02 | 富士通株式会社 | 符号化，復号化方法及び符号化，復号化装置 |
| TW376611B (en) | 1998-05-26 | 1999-12-11 | Koninkl Philips Electronics Nv | Transmission system with improved speech encoder |
| CN101622668B (zh) | 2007-03-02 | 2012-05-30 | 艾利森电话股份有限公司 | 电信网络中的方法和装置 |
| EP3079153B1 (en) * | 2010-07-02 | 2018-08-01 | Dolby International AB | Audio decoding with selective post filtering |
| US8738385B2 (en) * | 2010-10-20 | 2014-05-27 | Broadcom Corporation | Pitch-based pre-filtering and post-filtering for compression of audio signals |
| 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 |
| EP2980796A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and apparatus for processing an audio signal, audio decoder, and audio encoder |
| CN105118520B (zh) * | 2015-07-13 | 2017-11-10 | 腾讯科技（深圳）有限公司 | 一种音频开头爆音的消除方法及装置 |
| EP3563562B1 (en) * | 2016-12-30 | 2022-10-12 | Harman Becker Automotive Systems GmbH | Acoustic echo canceling |
-
2021
- 2021-04-23 ES ES21721487T patent/ES2995244T3/es active Active
- 2021-04-23 MX MX2022013100A patent/MX2022013100A/es unknown
- 2021-04-23 US US17/918,289 patent/US20230154479A1/en active Pending
- 2021-04-23 EP EP21721487.3A patent/EP4139919B1/en active Active
- 2021-04-23 JP JP2022554398A patent/JP7504216B2/ja active Active
- 2021-04-23 EP EP24201242.5A patent/EP4478357A1/en active Pending
- 2021-04-23 WO PCT/EP2021/060643 patent/WO2021214280A1/en not_active Ceased
- 2021-04-23 CN CN202180030319.7A patent/CN115428069A/zh active Pending
- 2021-04-23 CN CN202411528150.XA patent/CN119360866A/zh active Pending
-
2024
- 2024-06-11 JP JP2024094470A patent/JP7730399B2/ja active Active
-
2025
- 2025-08-15 JP JP2025135459A patent/JP2025183227A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP7730399B2 (ja) | 2025-08-27 |
| EP4139919B1 (en) | 2024-10-30 |
| JP7504216B2 (ja) | 2024-06-21 |
| CN119360866A (zh) | 2025-01-24 |
| BR112022018082A2 (pt) | 2022-11-01 |
| EP4139919A1 (en) | 2023-03-01 |
| JP2023522562A (ja) | 2023-05-31 |
| JP2024133490A (ja) | 2024-10-02 |
| EP4139919C0 (en) | 2024-10-30 |
| CN115428069A (zh) | 2022-12-02 |
| ES2995244T3 (en) | 2025-02-07 |
| JP2025183227A (ja) | 2025-12-16 |
| US20230154479A1 (en) | 2023-05-18 |
| WO2021214280A1 (en) | 2021-10-28 |
| EP4478357A1 (en) | 2024-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6570151B2 (ja) | 符号化装置、復号装置、符号化方法および復号方法 | |
| MX2012004648A (es) | Codificacion de señal de audio, decodificador de señal de audio, metodo para codificar o decodificar una señal de audio utilizando una cancelacion del tipo aliasing. | |
| JP6542717B2 (ja) | 高度なスペクトラム拡張を使用して量子化ノイズを低減するための圧縮伸張装置および方法 | |
| ES2948521T3 (es) | Método y dispositivo de codificación de señales de voz o audio transitorias, método y dispositivo de decodificación, sistema de procesado y soporte de almacenamiento legible por ordenador | |
| CA2900354C (en) | Method and apparatus for controlling audio frame loss concealment | |
| AU2013345615B2 (en) | Method and apparatus for determining encoding mode, method and apparatus for encoding audio signals, and method and apparatus for decoding audio signals | |
| ATE395687T1 (de) | Kodierung von tonsignalen mit zeitverzerrter modifizierter umwandlung | |
| SE0004163D0 (sv) | Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering | |
| AR072551A1 (es) | Esquema de codificacion / decodificacion de audio que tiene una derivacion conmutable | |
| RU2010140362A (ru) | Способ и устройство для обработки аудиосигнала | |
| HRP20130841T1 (hr) | Naprava za dekodiranje govora, postupak dekodiranja govora, te program za dekodiranje govora | |
| MX392006B (es) | Decodificador de audio y método para proveer una información de audio decodificada usando un ocultamiento de error que modifica una señal de excitación de dominio de tiempo. | |
| KR20090028676A (ko) | 상위대역 시그널에 대한 프레임 손실 은닉을 수행하는 방법및 장치 | |
| BR112022010200A2 (pt) | Modelo psicoacústico para processamento de áudio | |
| RU2015136792A (ru) | Аудиокодер, аудиодекодер, способ обеспечения кодированной аудиоинформации, способ обеспечения декодированной аудиоинформации, компьютерная программа и кодированное представление с использованием сигнально-адаптивного расширения полосы пропускания | |
| CN101609678A (zh) | 信号压缩方法及其压缩装置 | |
| RU2010138563A (ru) | Способ и средство для кодирования информации фонового шума | |
| US20220343936A1 (en) | Decoding apparatus, encoding apparatus, and methods and programs therefor | |
| US11417345B2 (en) | Encoding apparatus, decoding apparatus, fricative sound judgment apparatus, and methods and programs therefor | |
| MX367639B (es) | Codificador, decodificador, método de codificación, método de decodificación y programa. | |
| MX2022013100A (es) | Adaptacion de bajo costo de posfiltro de graves. | |
| CN102231274B (zh) | 基音周期估计值修正方法、基音估计方法和相关装置 | |
| JP2017532595A (ja) | デジタルオーディオ信号におけるプレエコーの識別及び減衰 | |
| JP2016510426A (ja) | 低複雑度の調性適応音声信号量子化 | |
| ATE316282T1 (de) | Verfahren zur feststellung der wahrscheinlichkeit,dass ein sprachsignal stimmhaft ist |