ES2165200T3 - Codificacion de audio sobre la base de cuadros con banco de filtros adicional para atenuar la interferencia espectral en los limites de los cuadros. - Google Patents

Codificacion de audio sobre la base de cuadros con banco de filtros adicional para atenuar la interferencia espectral en los limites de los cuadros.

Info

Publication number
ES2165200T3
ES2165200T3 ES98957324T ES98957324T ES2165200T3 ES 2165200 T3 ES2165200 T3 ES 2165200T3 ES 98957324 T ES98957324 T ES 98957324T ES 98957324 T ES98957324 T ES 98957324T ES 2165200 T3 ES2165200 T3 ES 2165200T3
Authority
ES
Spain
Prior art keywords
audio
splice
information
pictures
technique
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES98957324T
Other languages
English (en)
Spanish (es)
Inventor
Louis Dunn Fielder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
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 Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Application granted granted Critical
Publication of ES2165200T3 publication Critical patent/ES2165200T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Stereophonic System (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
ES98957324T 1997-10-17 1998-10-15 Codificacion de audio sobre la base de cuadros con banco de filtros adicional para atenuar la interferencia espectral en los limites de los cuadros. Expired - Lifetime ES2165200T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/953,106 US5903872A (en) 1997-10-17 1997-10-17 Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries

Publications (1)

Publication Number Publication Date
ES2165200T3 true ES2165200T3 (es) 2002-03-01

Family

ID=25493577

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98957324T Expired - Lifetime ES2165200T3 (es) 1997-10-17 1998-10-15 Codificacion de audio sobre la base de cuadros con banco de filtros adicional para atenuar la interferencia espectral en los limites de los cuadros.

Country Status (15)

Country Link
US (1) US5903872A (https=)
EP (1) EP1023730B1 (https=)
JP (1) JP4126680B2 (https=)
KR (1) KR100630893B1 (https=)
CN (1) CN1199179C (https=)
AT (1) ATE210881T1 (https=)
AU (1) AU745914B2 (https=)
BR (1) BR9812921B1 (https=)
CA (1) CA2305237C (https=)
DE (1) DE69802959T2 (https=)
DK (1) DK1023730T3 (https=)
ES (1) ES2165200T3 (https=)
MY (1) MY117166A (https=)
TW (1) TW391137B (https=)
WO (1) WO1999021187A1 (https=)

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US6226608B1 (en) * 1999-01-28 2001-05-01 Dolby Laboratories Licensing Corporation Data framing for adaptive-block-length coding system
US7283965B1 (en) * 1999-06-30 2007-10-16 The Directv Group, Inc. Delivery and transmission of dolby digital AC-3 over television broadcast
US6748363B1 (en) * 2000-06-28 2004-06-08 Texas Instruments Incorporated TI window compression/expansion method
EP1215663A1 (en) * 2000-12-15 2002-06-19 BRITISH TELECOMMUNICATIONS public limited company Encoding audio signals
JP4867076B2 (ja) * 2001-03-28 2012-02-01 日本電気株式会社 音声合成用圧縮素片作成装置、音声規則合成装置及びそれらに用いる方法
FR2824978B1 (fr) * 2001-05-15 2003-09-19 Wavecom Sa Dispositif et procede de traitement d'un signal audio
AU2003236150A1 (en) 2002-04-26 2003-11-10 China Petroleum And Chemical Corporation Downflow catalytic cracking reactor and use thereof
US7292902B2 (en) * 2003-11-12 2007-11-06 Dolby Laboratories Licensing Corporation Frame-based audio transmission/storage with overlap to facilitate smooth crossfading
JP2009543112A (ja) * 2006-06-29 2009-12-03 エヌエックスピー ビー ヴィ 音声パラメータの復号化
JP5302190B2 (ja) * 2007-05-24 2013-10-02 パナソニック株式会社 オーディオ復号装置、オーディオ復号方法、プログラム及び集積回路
JP5044019B2 (ja) * 2007-07-13 2012-10-10 ドルビー ラボラトリーズ ライセンシング コーポレイション レベルの時変の推定された確率密度を使用する時変オーディオ信号レベル
US20090048827A1 (en) * 2007-08-17 2009-02-19 Manoj Kumar Method and system for audio frame estimation
BRPI0821091B1 (pt) * 2007-12-21 2020-11-10 France Telecom processo e dispositivo de codificação/decodificação por transformada com janelas adaptativas, e memória legível por computador
TWI675367B (zh) 2009-05-27 2019-10-21 瑞典商杜比國際公司 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
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
KR101838301B1 (ko) * 2012-02-17 2018-03-13 삼성전자주식회사 멀티미디어 컨텐츠 프레임 검색 방법 및 장치
EP2898506B1 (en) 2012-09-21 2018-01-17 Dolby Laboratories Licensing Corporation Layered approach to spatial audio coding
TWI557727B (zh) * 2013-04-05 2016-11-11 杜比國際公司 音訊處理系統、多媒體處理系統、處理音訊位元流的方法以及電腦程式產品
EP3998605A1 (en) * 2014-06-10 2022-05-18 MQA Limited Digital encapsulation of audio signals
US10861471B2 (en) * 2015-06-10 2020-12-08 Sony Corporation Signal processing apparatus, signal processing method, and program
MY196436A (en) * 2016-01-22 2023-04-11 Fraunhofer Ges Forschung Apparatus and Method for Encoding or Decoding a Multi-Channel Signal Using Frame Control Synchronization
AU2017219696B2 (en) * 2016-02-17 2018-11-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Post-processor, pre-processor, audio encoder, audio decoder and related methods for enhancing transient processing
US10726851B2 (en) * 2017-08-31 2020-07-28 Sony Interactive Entertainment Inc. Low latency audio stream acceleration by selectively dropping and blending audio blocks
CN116721670A (zh) * 2023-04-24 2023-09-08 武汉海微科技有限公司 分段音频信号的滤波方法、装置、设备及存储介质

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60214164A (ja) * 1984-04-09 1985-10-26 Nec Corp オ−デイオシンクロナイザ
US5479562A (en) * 1989-01-27 1995-12-26 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding audio information
US5222189A (en) * 1989-01-27 1993-06-22 Dolby Laboratories Licensing Corporation Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
NL9000338A (nl) * 1989-06-02 1991-01-02 Koninkl Philips Electronics Nv Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting.
CN1062963C (zh) * 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
EP0520068B1 (en) * 1991-01-08 1996-05-15 Dolby Laboratories Licensing Corporation Encoder/decoder for multidimensional sound fields
ZA921988B (en) * 1991-03-29 1993-02-24 Sony Corp High efficiency digital data encoding and decoding apparatus
JP3141450B2 (ja) * 1991-09-30 2001-03-05 ソニー株式会社 オーディオ信号処理方法
US5394508A (en) * 1992-01-17 1995-02-28 Massachusetts Institute Of Technology Method and apparatus for encoding decoding and compression of audio-type data
US5623577A (en) * 1993-07-16 1997-04-22 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
WO1995032556A1 (en) * 1994-05-19 1995-11-30 Philips Electronics N.V. Arrangement for determining a signal spectrum of a wideband digital signal and for deriving bit allocation information in response thereto
DE69525836T2 (de) * 1994-11-04 2002-11-21 Koninklijke Philips Electronics N.V., Eindhoven Kodierung und dekodierung eines breitbandigen digitalen informationssignals
US5727119A (en) * 1995-03-27 1998-03-10 Dolby Laboratories Licensing Corporation Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels

Also Published As

Publication number Publication date
BR9812921B1 (pt) 2010-11-30
DK1023730T3 (da) 2002-04-02
KR100630893B1 (ko) 2006-10-02
TW391137B (en) 2000-05-21
ATE210881T1 (de) 2001-12-15
WO1999021187A1 (en) 1999-04-29
AU745914B2 (en) 2002-04-11
CN1275234A (zh) 2000-11-29
US5903872A (en) 1999-05-11
HK1033194A1 (en) 2001-08-17
EP1023730A1 (en) 2000-08-02
JP4126680B2 (ja) 2008-07-30
KR20010024341A (ko) 2001-03-26
JP2001521308A (ja) 2001-11-06
MY117166A (en) 2004-05-31
CA2305237C (en) 2005-12-20
DE69802959D1 (de) 2002-01-24
CN1199179C (zh) 2005-04-27
CA2305237A1 (en) 1999-04-29
AU1360899A (en) 1999-05-10
DE69802959T2 (de) 2002-06-20
BR9812921A (pt) 2000-08-08
EP1023730B1 (en) 2001-12-12

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