CN1199179C - 在帧边界处衰减频谱邻频干扰的音频编码 - Google Patents

在帧边界处衰减频谱邻频干扰的音频编码 Download PDF

Info

Publication number
CN1199179C
CN1199179C CNB988100932A CN98810093A CN1199179C CN 1199179 C CN1199179 C CN 1199179C CN B988100932 A CNB988100932 A CN B988100932A CN 98810093 A CN98810093 A CN 98810093A CN 1199179 C CN1199179 C CN 1199179C
Authority
CN
China
Prior art keywords
filter array
block
samples
frame
synthesis
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
CNB988100932A
Other languages
English (en)
Chinese (zh)
Other versions
CN1275234A (zh
Inventor
路易斯·杜恩·非尔德尔
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
Publication of CN1275234A publication Critical patent/CN1275234A/zh
Application granted granted Critical
Publication of CN1199179C publication Critical patent/CN1199179C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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)
CNB988100932A 1997-10-17 1998-10-15 在帧边界处衰减频谱邻频干扰的音频编码 Expired - Lifetime CN1199179C (zh)

Applications Claiming Priority (2)

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
US08/953,106 1997-10-17

Publications (2)

Publication Number Publication Date
CN1275234A CN1275234A (zh) 2000-11-29
CN1199179C true CN1199179C (zh) 2005-04-27

Family

ID=25493577

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB988100932A Expired - Lifetime CN1199179C (zh) 1997-10-17 1998-10-15 在帧边界处衰减频谱邻频干扰的音频编码

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=)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
ES2165200T3 (es) 2002-03-01
JP2001521308A (ja) 2001-11-06
MY117166A (en) 2004-05-31
CA2305237C (en) 2005-12-20
DE69802959D1 (de) 2002-01-24
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

Similar Documents

Publication Publication Date Title
CN1199179C (zh) 在帧边界处衰减频谱邻频干扰的音频编码
CN1267920C (zh) 信号处理方法与装置
CN100338649C (zh) 处理音频信号、生成重建的音频信号的方法、设备及媒体
CN1153191C (zh) 高质量音频的可缩放编码方法
CN1065381C (zh) 数字音频信号编码和/或译码方法
CN1030129C (zh) 高效数字数据编码和译码装置
JP4126681B2 (ja) エイリアシング抑制追加フィルタバンク付フレーム・基礎オーディオ符号化
CN1281006C (zh) 信息编码/译码方法和装置和信息传输方法
CN1130691C (zh) 音频译码装置
CN1233163C (zh) 多声道数字音频信号的压缩编码和解码设备及其方法
CN1816847A (zh) 保真度优化的可变帧长编码
CN1160702C (zh) 使用多通道音频信号的编码方法及装置
CN1302458C (zh) 解码方法和解码装置
CN1101087C (zh) 信号编码方法及装置、信号解码方法及装置和信号传送方法
CN1338104A (zh) 自适应块长编码系统的数据分帧
CN1552060A (zh) 通过降低前噪声改善低比特速率音频编码系统的瞬时性能
CN1527995A (zh) 编码设备和解码设备
JP2001521309A5 (https=)
CN1879163A (zh) 利用重叠来促进平滑交叉渐变的基于帧的音频传输/存储
KR20010024342A (ko) 이득 제어 워드들을 구비한 프레임 기반 오디오 코딩
CN1106967A (zh) 数字声频信号低比特率编译码器、和编译码方法及其编码记录媒体
JP2001521308A5 (https=)
JP2001521347A5 (https=)
CN1615659A (zh) 音频编码
KR20080076691A (ko) 멀티채널 오디오신호 복호화방법 및 그 장치, 부호화방법및 그 장치

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20050427