CL2020002746A1 - 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 reducido.

Info

Publication number
CL2020002746A1
CL2020002746A1 CL2020002746A CL2020002746A CL2020002746A1 CL 2020002746 A1 CL2020002746 A1 CL 2020002746A1 CL 2020002746 A CL2020002746 A CL 2020002746A CL 2020002746 A CL2020002746 A CL 2020002746A CL 2020002746 A1 CL2020002746 A1 CL 2020002746A1
Authority
CL
Chile
Prior art keywords
audio signal
band
frequency reconstruction
audio
integration
Prior art date
Application number
CL2020002746A
Other languages
English (en)
Inventor
Lars Villemoes
Heiko Purnhagen
Per Ekstrand
Kristofer Kjoerling
Original Assignee
Dolby Int Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Publication of CL2020002746A1 publication Critical patent/CL2020002746A1/es

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
    • G10L19/16—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
    • 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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Networks Using Active Elements (AREA)
  • Stereophonic System (AREA)

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 postprocesamiento con un retraso de 3010 muestras por canal de audio.
CL2020002746A 2018-04-25 2020-10-22 Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducido. CL2020002746A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201862662296P 2018-04-25 2018-04-25

Publications (1)

Publication Number Publication Date
CL2020002746A1 true CL2020002746A1 (es) 2021-01-29

Family

ID=68294559

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2020002746A CL2020002746A1 (es) 2018-04-25 2020-10-22 Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducido.

Country Status (20)

Country Link
US (10) US11562759B2 (es)
EP (1) EP3662469A4 (es)
JP (10) JP6908795B2 (es)
KR (7) KR20250036948A (es)
CN (10) CN121459829A (es)
AR (8) AR114840A1 (es)
AU (5) AU2019257701A1 (es)
BR (1) BR112020021809A2 (es)
CA (5) CA3238620A1 (es)
CL (1) CL2020002746A1 (es)
IL (5) IL324371A (es)
MA (1) MA50760A (es)
MX (10) MX2020011212A (es)
MY (4) MY208243A (es)
RU (1) RU2758199C1 (es)
SG (1) SG11202010367YA (es)
TW (5) TWI886626B (es)
UA (1) UA128605C2 (es)
WO (1) WO2019210068A1 (es)
ZA (4) ZA202006517B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI901543B (zh) * 2017-03-23 2025-10-11 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
WO2019145955A1 (en) 2018-01-26 2019-08-01 Hadasit Medical Research Services & Development Limited Non-metallic magnetic resonance contrast agent
CN118782080A (zh) 2018-04-25 2024-10-15 杜比国际公司 高频音频重建技术的集成
IL324371A (en) * 2018-04-25 2026-01-01 Dolby Int Ab Integration of high frequency reconstruction techniques with reduced post-processing delay
CN113113032B (zh) * 2020-01-10 2024-08-09 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
CN113192523B (zh) * 2020-01-13 2024-07-16 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
CN113808596B (zh) * 2020-05-30 2025-01-03 华为技术有限公司 一种音频编码方法和音频编码装置
CN114079968A (zh) * 2020-08-21 2022-02-22 华为技术有限公司 传输数据的方法和装置
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
CN115097266B (zh) * 2022-06-20 2024-11-29 国网上海市电力公司 一种电力电缆局部放电类型识别方法、装置及存储介质

Family Cites Families (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
SE0004187D0 (sv) * 2000-11-15 2000-11-15 Coding Technologies Sweden Ab Enhancing the performance of coding systems that use high frequency reconstruction methods
SE0101175D0 (sv) * 2001-04-02 2001-04-02 Coding Technologies Sweden Ab Aliasing reduction using complex-exponential-modulated filterbanks
EP1423847B1 (en) * 2001-11-29 2005-02-02 Coding Technologies AB Reconstruction of high frequency components
US7447631B2 (en) 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
CN100481722C (zh) 2002-06-05 2009-04-22 索尼克焦点公司 声虚拟现实引擎中增强传送音的系统和方法
US6792057B2 (en) 2002-08-29 2004-09-14 Bae Systems Information And Electronic Systems Integration Inc Partial band reconstruction of frequency channelized filters
US7318035B2 (en) 2003-05-08 2008-01-08 Dolby Laboratories Licensing Corporation Audio coding systems and methods using spectral component coupling and spectral component regeneration
KR100571922B1 (ko) * 2004-01-06 2006-04-17 삼성전자주식회사 공간 역 필터 이용 방법 및 장치
ATE555470T1 (de) * 2004-07-20 2012-05-15 Panasonic Corp Toncodiereinrichtung und toncodierverfahren
US8260609B2 (en) * 2006-07-31 2012-09-04 Qualcomm Incorporated Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
CN101140759B (zh) * 2006-09-08 2010-05-12 华为技术有限公司 语音或音频信号的带宽扩展方法及系统
US20080071550A1 (en) 2006-09-18 2008-03-20 Samsung Electronics Co., Ltd. Method and apparatus to encode and decode audio signal by using bandwidth extension technique
EP2193663B1 (en) * 2007-09-28 2017-11-08 Dolby Laboratories Licensing Corporation Treating video information
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
EP2077550B8 (en) * 2008-01-04 2012-03-14 Dolby International AB Audio encoder and decoder
DE102008015702B4 (de) 2008-01-31 2010-03-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Bandbreitenerweiterung eines Audiosignals
BRPI0906142B1 (pt) 2008-03-10 2020-10-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. dispositivo e método para a manipulação de um sinal de áudio tendo um evento transiente
MX2011000372A (es) * 2008-07-11 2011-05-19 Fraunhofer Ges Forschung Sintetizador de señales de audio y codificador de señales de audio.
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
AU2010205583B2 (en) * 2009-01-16 2013-02-07 Dolby International Ab Cross product enhanced harmonic transposition
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
KR101367604B1 (ko) 2009-03-17 2014-02-26 돌비 인터네셔널 에이비 적응형으로 선택가능한 좌／우 또는 미드／사이드 스테레오 코딩과 파라메트릭 스테레오 코딩의 조합에 기초한 진보된 스테레오 코딩
CO6440537A2 (es) * 2009-04-09 2012-05-15 Fraunhofer Ges Forschung Aparato y metodo para generar una señal de audio de sintesis y para codificar una señal de audio
US8971551B2 (en) 2009-09-18 2015-03-03 Dolby International Ab Virtual bass synthesis using harmonic transposition
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
PL2273493T3 (pl) * 2009-06-29 2013-07-31 Fraunhofer Ges Forschung Kodowanie i dekodowanie z rozszerzaniem szerokości pasma
US8515768B2 (en) 2009-08-31 2013-08-20 Apple Inc. Enhanced audio decoder
JP5433022B2 (ja) 2009-09-18 2014-03-05 ドルビー インターナショナル アーベー 高調波転換
EP3564954B1 (en) 2010-01-19 2020-11-11 Dolby International AB Improved subband block based harmonic transposition
PT2545551T (pt) 2010-03-09 2018-01-03 Fraunhofer Ges Forschung Resposta de magnitude aperfeiçoada e alinhamento temporal de um vocoder de fase com base no método de extensão de largura de banda para sinais de áudio
AU2011226212B2 (en) * 2010-03-09 2014-03-27 Dolby International Ab Apparatus and method for processing an input audio signal using cascaded filterbanks
EP2581902A4 (en) * 2010-06-14 2015-04-08 Panasonic Corp AUDIOHYBRID ENCODER AND AUDIOHYBRIDE DECODING DEVICE
US9047875B2 (en) 2010-07-19 2015-06-02 Futurewei Technologies, Inc. Spectrum flatness control for bandwidth extension
EP3544009B1 (en) 2010-07-19 2020-05-27 Dolby International AB Processing of audio signals during high frequency reconstruction
US8996976B2 (en) 2011-09-06 2015-03-31 Microsoft Technology Licensing, Llc Hyperlink destination visibility
USRE48258E1 (en) 2011-11-11 2020-10-13 Dolby International Ab Upsampling using oversampled SBR
GB2499699A (en) * 2011-12-14 2013-08-28 Wolfson Ltd Digital data transmission involving the position of and duration of data pulses within transfer periods
US9380320B2 (en) * 2012-02-10 2016-06-28 Broadcom Corporation Frequency domain sample adaptive offset (SAO)
EP2631906A1 (en) 2012-02-27 2013-08-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Phase coherence control for harmonic signals in perceptual audio codecs
CN102842337A (zh) 2012-06-05 2012-12-26 国光电器股份有限公司 基于wifi的高保真音频传输方法
EP2830064A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding and encoding an audio signal using adaptive spectral tile selection
ES2660778T3 (es) 2013-10-21 2018-03-26 Dolby International Ab Reconstrucción paramétrica de señales de audio
EP2881943A1 (en) * 2013-12-09 2015-06-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding an encoded audio signal with low computational resources
US10163447B2 (en) * 2013-12-16 2018-12-25 Qualcomm Incorporated High-band signal modeling
FR3017484A1 (fr) * 2014-02-07 2015-08-14 Orange Extension amelioree de bande de frequence dans un decodeur de signaux audiofrequences
US9756448B2 (en) 2014-04-01 2017-09-05 Dolby International Ab Efficient coding of audio scenes comprising audio objects
TWI758146B (zh) 2015-03-13 2022-03-11 瑞典商杜比國際公司 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流
GR1008810B (el) 2015-03-19 2016-07-07 Νικολαος Ευστρατιου Καβουνης Φυσικος αφρωδης οινος με βιολογικο κροκο κοζανης
FR3034935B1 (fr) * 2015-04-10 2017-05-05 Thales Sa Procede de reduction du facteur crete d'une emission multicanaux par ecretage/filtrage intelligent et adaptatif
CN107925388B (zh) * 2016-02-17 2021-11-30 弗劳恩霍夫应用研究促进协会 后置处理器、预处理器、音频编解码器及相关方法
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
EP3382700A1 (en) * 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for post-processing an audio signal using a transient location detection
TW202546817A (zh) 2018-01-26 2025-12-01 瑞典商都比國際公司 用於執行一音訊信號之高頻重建之方法、音訊處理單元及非暫時性電腦可讀媒體
IL324371A (en) * 2018-04-25 2026-01-01 Dolby Int Ab Integration of high frequency reconstruction techniques with reduced post-processing delay
CN118782080A (zh) * 2018-04-25 2024-10-15 杜比国际公司 高频音频重建技术的集成

Also Published As

Publication number Publication date
TWI820123B (zh) 2023-11-01
US11823695B2 (en) 2023-11-21
KR20210125108A (ko) 2021-10-15
MY208243A (en) 2025-04-29
IL278222B1 (en) 2024-09-01
CN112204659A (zh) 2021-01-08
US20250273225A1 (en) 2025-08-28
US11830509B2 (en) 2023-11-28
WO2019210068A1 (en) 2019-10-31
KR102474146B1 (ko) 2022-12-06
US20230206933A1 (en) 2023-06-29
AU2024278519B2 (en) 2025-12-04
MX2023013459A (es) 2024-09-10
RU2021130811A (ru) 2022-03-01
CA3238615A1 (en) 2019-10-31
AR128547A2 (es) 2024-05-22
CN121459830A (zh) 2026-02-03
AR126606A2 (es) 2023-10-25
MY199480A (en) 2023-11-01
MX2023013469A (es) 2023-12-15
RU2758199C1 (ru) 2021-10-26
JP2021515276A (ja) 2021-06-17
AU2021277708B2 (en) 2023-03-30
JP2025143344A (ja) 2025-10-01
MX2023013465A (es) 2023-12-15
US20250378839A1 (en) 2025-12-11
JP2025118993A (ja) 2025-08-13
KR102649124B1 (ko) 2024-03-20
US20250118314A1 (en) 2025-04-10
US12243543B2 (en) 2025-03-04
KR102852107B1 (ko) 2025-08-29
MY208216A (en) 2025-04-24
BR112020021809A2 (pt) 2021-02-23
AU2021277708A1 (en) 2021-12-23
KR20250133985A (ko) 2025-09-09
MX2020011212A (es) 2020-11-09
US20230206934A1 (en) 2023-06-29
MX2023013470A (es) 2023-12-15
CA3098295A1 (en) 2019-10-31
AR128551A2 (es) 2024-05-22
IL313348B2 (en) 2025-08-01
JP2021157202A (ja) 2021-10-07
IL319703A (en) 2025-05-01
CN114242087A (zh) 2022-03-25
JP7738797B1 (ja) 2025-09-12
CN121459829A (zh) 2026-02-03
US11823696B2 (en) 2023-11-21
KR20220166372A (ko) 2022-12-16
CN114242086A (zh) 2022-03-25
CA3152262A1 (en) 2019-10-31
TWI886626B (zh) 2025-06-11
JP2025066170A (ja) 2025-04-22
US20240161763A1 (en) 2024-05-16
AR114840A1 (es) 2020-10-21
AU2024278519A1 (en) 2025-01-09
CN114242088B (zh) 2025-11-07
TW202410027A (zh) 2024-03-01
US20230206935A1 (en) 2023-06-29
CN114242088A (zh) 2022-03-25
IL278222B2 (en) 2025-01-01
JP7493073B2 (ja) 2024-05-30
KR102560473B1 (ko) 2023-07-27
JP7675295B2 (ja) 2025-05-12
MX2023013457A (es) 2024-09-10
CA3238620A1 (en) 2019-10-31
TW202542896A (zh) 2025-11-01
JP2025111688A (ja) 2025-07-30
CA3098295C (en) 2022-04-26
CN121393455A (zh) 2026-01-23
MX2023013463A (es) 2024-03-07
AR128549A2 (es) 2024-05-22
TW202006706A (zh) 2020-02-01
JP6908795B2 (ja) 2021-07-28
CN114242090B (zh) 2026-01-09
MX2023013461A (es) 2024-03-07
JP2025066171A (ja) 2025-04-22
KR102310937B1 (ko) 2021-10-12
UA128605C2 (uk) 2024-08-28
JP7706034B1 (ja) 2025-07-10
US20210151062A1 (en) 2021-05-20
KR20200137026A (ko) 2020-12-08
US11823694B2 (en) 2023-11-21
CN114242089A (zh) 2022-03-25
JP2025176109A (ja) 2025-12-03
JP7679989B2 (ja) 2025-05-20
AU2023203912B2 (en) 2025-08-28
US20230162748A1 (en) 2023-05-25
IL313348A (en) 2024-08-01
SG11202010367YA (en) 2020-11-27
JP7675958B2 (ja) 2025-05-13
KR20250036948A (ko) 2025-03-14
EP3662469A1 (en) 2020-06-10
CN112204659B (zh) 2021-12-17
CA3238617A1 (en) 2019-10-31
ZA202006517B (en) 2023-10-25
ZA202204656B (en) 2023-11-29
TW202542895A (zh) 2025-11-01
CN114242086B (zh) 2025-12-05
AR126605A2 (es) 2023-10-25
MY208358A (en) 2025-05-01
MX2023013464A (es) 2023-12-15
IL313348B1 (en) 2025-04-01
US11562759B2 (en) 2023-01-24
ZA202304038B (en) 2024-08-28
MA50760A (fr) 2020-06-10
JP2024099067A (ja) 2024-07-24
US20230206932A1 (en) 2023-06-29
US11908486B2 (en) 2024-02-20
CN114242087B (zh) 2025-08-12
KR20240042120A (ko) 2024-04-01
TW202542894A (zh) 2025-11-01
EP3662469A4 (en) 2020-08-19
CN121214953A (zh) 2025-12-26
AU2019257701A1 (en) 2020-12-03
AR128548A2 (es) 2024-05-22
IL324371A (en) 2026-01-01
KR20230116088A (ko) 2023-08-03
ZA202402721B (en) 2025-07-30
MX2023013467A (es) 2023-12-15
JP2023060264A (ja) 2023-04-27
IL278222A (he) 2020-12-31
IL324372A (en) 2026-01-01
US12300258B2 (en) 2025-05-13
JP7713127B1 (ja) 2025-07-24
AR128550A2 (es) 2024-05-22
CN114242089B (zh) 2025-10-28
CN114242090A (zh) 2022-03-25
JP7242767B2 (ja) 2023-03-20
AU2026201661A1 (en) 2026-03-26
AU2023203912A1 (en) 2023-07-13

Similar Documents

Publication Publication Date Title
CL2020002746A1 (es) Integración de técnicas de reconstrucción de alta frecuencia con retraso post-procesamiento reducido.
CL2020002745A1 (es) Integración de técnicas de reconstrucción de alta frecuencia.
AR127543A2 (es) Método y unidad de procesamiento de audio para realizar reconstrucción de alta frecuencia de una señal de audio
AR120464A2 (es) Integración de transpositor armónico compatible con versiones anteriores para la reconstrucción de alta frecuencia de señales de audio