AR114840A1 - Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducido - Google Patents
Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducidoInfo
- Publication number
- AR114840A1 AR114840A1 ARP190101096A ARP190101096A AR114840A1 AR 114840 A1 AR114840 A1 AR 114840A1 AR P190101096 A ARP190101096 A AR P190101096A AR P190101096 A ARP190101096 A AR P190101096A AR 114840 A1 AR114840 A1 AR 114840A1
- Authority
- AR
- Argentina
- Prior art keywords
- audio signal
- high frequency
- band
- frequency reconstruction
- audio
- Prior art date
Links
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862662296P | 2018-04-25 | 2018-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR114840A1 true AR114840A1 (es) | 2020-10-21 |
Family
ID=68294559
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP190101096A AR114840A1 (es) | 2018-04-25 | 2019-04-25 | Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducido |
| ARP220102020A AR126605A2 (es) | 2018-04-25 | 2022-07-28 | Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducido |
| ARP220102021A AR126606A2 (es) | 2018-04-25 | 2022-07-28 | Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducido |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP220102020A AR126605A2 (es) | 2018-04-25 | 2022-07-28 | Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducido |
| ARP220102021A AR126606A2 (es) | 2018-04-25 | 2022-07-28 | Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducido |
Country Status (17)
| Country | Link |
|---|---|
| US (6) | US11562759B2 (es) |
| EP (1) | EP3662469A4 (es) |
| JP (3) | JP6908795B2 (es) |
| KR (5) | KR102474146B1 (es) |
| CN (6) | CN114242090A (es) |
| AR (3) | AR114840A1 (es) |
| AU (3) | AU2019257701A1 (es) |
| BR (1) | BR112020021809A2 (es) |
| CA (2) | CA3152262A1 (es) |
| CL (1) | CL2020002746A1 (es) |
| MA (1) | MA50760A (es) |
| MX (1) | MX2020011212A (es) |
| RU (2) | RU2758199C1 (es) |
| SG (1) | SG11202010367YA (es) |
| TW (1) | TWI820123B (es) |
| WO (1) | WO2019210068A1 (es) |
| ZA (2) | ZA202006517B (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW202341126A (zh) * | 2017-03-23 | 2023-10-16 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合 |
| JP7257041B2 (ja) | 2019-10-28 | 2023-04-13 | 国立大学法人東北大学 | 推定装置、推定方法、及び、材料の製造方法 |
| CN113113032A (zh) * | 2020-01-10 | 2021-07-13 | 华为技术有限公司 | 一种音频编解码方法和音频编解码设备 |
| CN113192523A (zh) * | 2020-01-13 | 2021-07-30 | 华为技术有限公司 | 一种音频编解码方法和音频编解码设备 |
| CN114550732B (zh) * | 2022-04-15 | 2022-07-08 | 腾讯科技（深圳）有限公司 | 一种高频音频信号的编解码方法和相关装置 |
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| SE512719C2 (sv) | 1997-06-10 | 2000-05-02 | Lars Gustaf Liljeryd | En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion |
| SE9903553D0 (sv) | 1999-01-27 | 1999-10-01 | Lars Liljeryd | Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL) |
| SE0001926D0 (sv) * | 2000-05-23 | 2000-05-23 | Lars Liljeryd | Improved spectral translation/folding in the subband domain |
| CN1279512C (zh) | 2001-11-29 | 2006-10-11 | 编码技术股份公司 | 用于改善高频重建的方法和装置 |
| US7447631B2 (en) | 2002-06-17 | 2008-11-04 | Dolby Laboratories Licensing Corporation | Audio coding system using spectral hole filling |
| US6792057B2 (en) | 2002-08-29 | 2004-09-14 | Bae Systems Information And Electronic Systems Integration Inc | Partial band reconstruction of frequency channelized filters |
| EP1763017B1 (en) * | 2004-07-20 | 2012-04-25 | Panasonic Corporation | Sound encoder and sound encoding method |
| US8260609B2 (en) * | 2006-07-31 | 2012-09-04 | Qualcomm Incorporated | Systems, methods, and apparatus for wideband encoding and decoding of inactive frames |
| WO2009059632A1 (en) * | 2007-11-06 | 2009-05-14 | Nokia Corporation | An encoder |
| CN101458930B (zh) | 2007-12-12 | 2011-09-14 | 华为技术有限公司 | 带宽扩展中激励信号的生成及信号重建方法和装置 |
| DE102008015702B4 (de) | 2008-01-31 | 2010-03-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zur Bandbreitenerweiterung eines Audiosignals |
| JP5336522B2 (ja) | 2008-03-10 | 2013-11-06 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ | 瞬間的事象を有する音声信号の操作装置および操作方法 |
| CA2730198C (en) | 2008-07-11 | 2014-09-16 | Frederik Nagel | Audio signal synthesizer and audio signal encoder |
| JP5203077B2 (ja) | 2008-07-14 | 2013-06-05 | 株式会社エヌ・ティ・ティ・ドコモ | 音声符号化装置及び方法、音声復号化装置及び方法、並びに、音声帯域拡張装置及び方法 |
| TWI597939B (zh) * | 2009-02-18 | 2017-09-01 | 杜比國際公司 | 具相位偏移之複數值合成濾波器組 |
| MX2011009660A (es) | 2009-03-17 | 2011-09-30 | Dolby Int Ab | Codificacion estereo avanzada basada en una combinacion de codificacion izquierda/derecha o media/lateral seleccionable de manera adaptable y de codificacion estereo parametrica. |
| TWI556227B (zh) | 2009-05-27 | 2016-11-01 | 杜比國際公司 | 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體 |
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| EP3208800A1 (en) * | 2016-02-17 | 2017-08-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for stereo filing in multichannel coding |
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2019
- 2019-04-25 KR KR1020217031784A patent/KR102474146B1/ko active IP Right Grant
- 2019-04-25 BR BR112020021809-0A patent/BR112020021809A2/pt unknown
- 2019-04-25 SG SG11202010367YA patent/SG11202010367YA/en unknown
- 2019-04-25 RU RU2020138079A patent/RU2758199C1/ru active
- 2019-04-25 US US17/050,664 patent/US11562759B2/en active Active
- 2019-04-25 TW TW108114437A patent/TWI820123B/zh active
- 2019-04-25 CN CN202111585703.1A patent/CN114242090A/zh active Pending
- 2019-04-25 CA CA3152262A patent/CA3152262A1/en active Pending
- 2019-04-25 CN CN201980034811.4A patent/CN112204659B/zh active Active
- 2019-04-25 CN CN202111585683.8A patent/CN114242088A/zh active Pending
- 2019-04-25 WO PCT/US2019/029144 patent/WO2019210068A1/en active Application Filing
- 2019-04-25 AU AU2019257701A patent/AU2019257701A1/en not_active Abandoned
- 2019-04-25 MX MX2020011212A patent/MX2020011212A/es unknown
- 2019-04-25 MA MA050760A patent/MA50760A/fr unknown
- 2019-04-25 JP JP2020559494A patent/JP6908795B2/ja active Active
- 2019-04-25 KR KR1020207033980A patent/KR102310937B1/ko active IP Right Grant
- 2019-04-25 RU RU2021130811A patent/RU2021130811A/ru unknown
- 2019-04-25 AR ARP190101096A patent/AR114840A1/es active IP Right Grant
- 2019-04-25 CN CN202111585681.9A patent/CN114242087A/zh active Pending
- 2019-04-25 CN CN202111585701.2A patent/CN114242089A/zh active Pending
- 2019-04-25 KR KR1020247008612A patent/KR20240042120A/ko unknown
- 2019-04-25 KR KR1020237025281A patent/KR102649124B1/ko active IP Right Grant
- 2019-04-25 CA CA3098295A patent/CA3098295C/en active Active
- 2019-04-25 CN CN202111584446.XA patent/CN114242086A/zh active Pending
- 2019-04-25 KR KR1020227042164A patent/KR102560473B1/ko active IP Right Grant
- 2019-04-25 EP EP19791884.0A patent/EP3662469A4/en not_active Ceased
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2020
- 2020-10-20 ZA ZA2020/06517A patent/ZA202006517B/en unknown
- 2020-10-22 CL CL2020002746A patent/CL2020002746A1/es unknown
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2021
- 2021-07-01 JP JP2021110192A patent/JP7242767B2/ja active Active
- 2021-12-02 AU AU2021277708A patent/AU2021277708B2/en active Active
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2022
- 2022-04-26 ZA ZA2022/04656A patent/ZA202204656B/en unknown
- 2022-07-28 AR ARP220102020A patent/AR126605A2/es unknown
- 2022-07-28 AR ARP220102021A patent/AR126606A2/es unknown
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2023
- 2023-01-20 US US18/157,644 patent/US11908486B2/en active Active
- 2023-03-03 US US18/178,412 patent/US11823695B2/en active Active
- 2023-03-03 US US18/178,396 patent/US11823694B2/en active Active
- 2023-03-03 US US18/178,405 patent/US11830509B2/en active Active
- 2023-03-03 US US18/178,416 patent/US11823696B2/en active Active
- 2023-03-08 JP JP2023035270A patent/JP2023060264A/ja active Pending
- 2023-06-21 AU AU2023203912A patent/AU2023203912A1/en active Pending
Also Published As
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