DK1023730T3 - Rammebaseret audiokodning med en yderligere filterbank til dæmpning af spektral splatter ved rammegrænser - Google Patents

Rammebaseret audiokodning med en yderligere filterbank til dæmpning af spektral splatter ved rammegrænser

Info

Publication number
DK1023730T3
DK1023730T3 DK98957324T DK98957324T DK1023730T3 DK 1023730 T3 DK1023730 T3 DK 1023730T3 DK 98957324 T DK98957324 T DK 98957324T DK 98957324 T DK98957324 T DK 98957324T DK 1023730 T3 DK1023730 T3 DK 1023730T3
Authority
DK
Denmark
Prior art keywords
audio
splice
information
frame
technique
Prior art date
Application number
DK98957324T
Other languages
English (en)
Inventor
Louis Dunn Fielder
Original Assignee
Dolby Lab 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 Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
Publication of DK1023730T3 publication Critical patent/DK1023730T3/da

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)
DK98957324T 1997-10-17 1998-10-15 Rammebaseret audiokodning med en yderligere filterbank til dæmpning af spektral splatter ved rammegrænser DK1023730T3 (da)

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
PCT/US1998/021700 WO1999021187A1 (en) 1997-10-17 1998-10-15 Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries

Publications (1)

Publication Number Publication Date
DK1023730T3 true DK1023730T3 (da) 2002-04-02

Family

ID=25493577

Family Applications (1)

Application Number Title Priority Date Filing Date
DK98957324T DK1023730T3 (da) 1997-10-17 1998-10-15 Rammebaseret audiokodning med en yderligere filterbank til dæmpning af spektral splatter ved rammegrænser

Country Status (15)

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

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
WO2003090918A1 (en) 2002-04-26 2003-11-06 China Petroleum & 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
US20090308229A1 (en) * 2006-06-29 2009-12-17 Nxp B.V. Decoding sound parameters
US8428953B2 (en) * 2007-05-24 2013-04-23 Panasonic Corporation Audio decoding device, audio decoding method, program, and integrated circuit
TWI467568B (zh) * 2007-07-13 2015-01-01 Dolby Lab Licensing Corp 使用位準時變評估機率密度之時變音訊信號位準
US20090048827A1 (en) * 2007-08-17 2009-02-19 Manoj Kumar Method and system for audio frame estimation
ES2666719T3 (es) * 2007-12-21 2018-05-07 Orange Codificación/decodificación por transformada, con ventanas adaptativas
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
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
US9460729B2 (en) 2012-09-21 2016-10-04 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
KR102661191B1 (ko) * 2014-06-10 2024-04-26 렌브룩 인더스트리즈 리미티드 오디오 신호의 디지털 캡슐화
CN107615379B (zh) * 2015-06-10 2021-12-24 索尼公司 信号处理装置、信号处理方法和程序
ES2727462T3 (es) 2016-01-22 2019-10-16 Fraunhofer Ges Forschung Aparatos y procedimientos para la codificación o decodificación de una señal multicanal de audio mediante el uso de repetición de muestreo de dominio espectral
PT3417544T (pt) 2016-02-17 2020-03-02 Fraunhofer Ges Forschung Pós-processador, pré-processador, codificador de áudio, descodificador de áudio e métodos relacionados para aprimoramento do processamento de transiente
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
DK0520068T3 (da) * 1991-01-08 1996-07-15 Dolby Ray Milton Koder/dekoder for flerdimensionale lydfelter
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
JP3830106B2 (ja) * 1994-05-19 2006-10-04 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴイ 広帯域ディジタル信号の信号スペクトルを規定し、かつこの信号スペクトルに応じてビット配置情報を得る機構
HU215685B (hu) * 1994-11-04 1999-02-01 Koninklijke Philips Electronics N.V. Eljárás és berendezés széles sávú digitális adatjelek kódolására és dekódolására
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
CN1275234A (zh) 2000-11-29
CN1199179C (zh) 2005-04-27
EP1023730A1 (en) 2000-08-02
AU1360899A (en) 1999-05-10
EP1023730B1 (en) 2001-12-12
ES2165200T3 (es) 2002-03-01
KR100630893B1 (ko) 2006-10-02
DE69802959D1 (de) 2002-01-24
KR20010024341A (ko) 2001-03-26
CA2305237A1 (en) 1999-04-29
US5903872A (en) 1999-05-11
WO1999021187A1 (en) 1999-04-29
BR9812921A (pt) 2000-08-08
MY117166A (en) 2004-05-31
HK1033194A1 (en) 2001-08-17
JP4126680B2 (ja) 2008-07-30
DE69802959T2 (de) 2002-06-20
JP2001521308A (ja) 2001-11-06
BR9812921B1 (pt) 2010-11-30
TW391137B (en) 2000-05-21
CA2305237C (en) 2005-12-20
ATE210881T1 (de) 2001-12-15
AU745914B2 (en) 2002-04-11

Similar Documents

Publication Publication Date Title
DK1023727T3 (da) Rammebaseret audiokodning med yderligere filterbank til undertrykkelse af aliasing artifakter ved rammegrænser
DK1023728T3 (da) Rammebaseret audiokodning med video/audio datasynkronisering tilvejebragt ved en dynamisk audio rammejustering af audiorammer
MY117166A (en) Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries
DK1023809T3 (da) Rammebaseret audiokodning med forstærkningsstyreord
DK1023729T3 (da) Rammebaseret audiokodning med synkronisering af video/audiodata ved omsætning af audiosynkroniseringshastigheder
JP2001521309A5 (da)
JP2001521308A5 (da)
JP2001521347A5 (da)
JP2001521310A5 (da)
EP0717518A3 (en) High efficiency audio encoding method and apparatus
JP4229041B2 (ja) 信号再生装置及び方法
KR980004346A (ko) 향상된 음질을 갖는 카세트 테이프 레코오더
KR950020520A (ko) 음성신호 기록재생장치
KR950030132A (ko) 티브이/브이씨알 복합시스템의 음성편집장치
KR960030557A (ko) 오디오신호 부호화회로
JPH04199928A (ja) 秘話通信方法
KR970050131A (ko) Hi-Fi VCR에서의 다채널녹화방법