ATE548728T1 - Nichtkausales nachfilter - Google Patents

Nichtkausales nachfilter

Info

Publication number
ATE548728T1
ATE548728T1 AT07852271T AT07852271T ATE548728T1 AT E548728 T1 ATE548728 T1 AT E548728T1 AT 07852271 T AT07852271 T AT 07852271T AT 07852271 T AT07852271 T AT 07852271T AT E548728 T1 ATE548728 T1 AT E548728T1
Authority
AT
Austria
Prior art keywords
decoder
frame
parameters
receiver input
decoded audio
Prior art date
Application number
AT07852271T
Other languages
English (en)
Inventor
Stefan Bruhn
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of ATE548728T1 publication Critical patent/ATE548728T1/de

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
    • G10L19/26—Pre-filtering or post-filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
AT07852271T 2007-03-02 2007-12-14 Nichtkausales nachfilter ATE548728T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US89266707P 2007-03-02 2007-03-02
PCT/SE2007/051000 WO2008108702A1 (en) 2007-03-02 2007-12-14 Non-causal postfilter

Publications (1)

Publication Number Publication Date
ATE548728T1 true ATE548728T1 (de) 2012-03-15

Family

ID=39738489

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07852271T ATE548728T1 (de) 2007-03-02 2007-12-14 Nichtkausales nachfilter

Country Status (7)

Country Link
US (1) US8620645B2 (de)
EP (1) EP2132733B1 (de)
JP (1) JP5097219B2 (de)
CN (1) CN101622666B (de)
AT (1) ATE548728T1 (de)
ES (1) ES2383365T3 (de)
WO (1) WO2008108702A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101770776B (zh) * 2008-12-29 2011-06-08 华为技术有限公司 瞬态信号的编码方法和装置、解码方法和装置及处理***
CA3160488C (en) 2010-07-02 2023-09-05 Dolby International Ab Audio decoding with selective post filtering
EP2761616A4 (de) * 2011-10-18 2015-06-24 Ericsson Telefon Ab L M Verbessertes verfahren und vorrichtung für einen adaptiven multiraten-codec
MY172712A (en) * 2013-01-29 2019-12-11 Fraunhofer Ges Forschung Apparatus and method for processing an encoded signal and encoder and method for generating an encoded signal
PL3550562T3 (pl) * 2013-02-22 2021-05-31 Telefonaktiebolaget Lm Ericsson (Publ) Sposoby i urządzenia dla zawieszenia DTX w kodowaniu audio
CN111312279B (zh) * 2013-09-12 2024-02-06 杜比国际公司 基于qmf的处理数据的时间对齐
EP2980799A1 (de) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Verarbeitung eines Audiosignals mit Verwendung einer harmonischen Nachfilterung
US9967195B1 (en) * 2014-12-09 2018-05-08 Cloud & Stream Gears Llc Iterative autocorrelation function calculation for big data using components
US10313250B1 (en) * 2014-12-09 2019-06-04 Cloud & Stream Gears Llc Incremental autocorrelation calculation for streamed data using components
US10492085B2 (en) * 2016-01-15 2019-11-26 Qualcomm Incorporated Real-time transport protocol congestion control techniques in video telephony

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2588004B2 (ja) * 1988-09-19 1997-03-05 日本電信電話株式会社 後処理フィルタ
CA2142391C (en) * 1994-03-14 2001-05-29 Juin-Hwey Chen Computational complexity reduction during frame erasure or packet loss
US5544278A (en) * 1994-04-29 1996-08-06 Audio Codes Ltd. Pitch post-filter
US5664055A (en) * 1995-06-07 1997-09-02 Lucent Technologies Inc. CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity
JP3747492B2 (ja) * 1995-06-20 2006-02-22 ソニー株式会社 音声信号の再生方法及び再生装置
SE9700772D0 (sv) * 1997-03-03 1997-03-03 Ericsson Telefon Ab L M A high resolution post processing method for a speech decoder
IL120788A (en) * 1997-05-06 2000-07-16 Audiocodes Ltd Systems and methods for encoding and decoding speech for lossy transmission networks
JP3206497B2 (ja) * 1997-06-16 2001-09-10 日本電気株式会社 インデックスによる信号生成型適応符号帳
JP3022462B2 (ja) * 1998-01-13 2000-03-21 興和株式会社 振動波の符号化方法及び復号化方法
FI980132A (fi) * 1998-01-21 1999-07-22 Nokia Mobile Phones Ltd Adaptoituva jälkisuodatin
US7272556B1 (en) * 1998-09-23 2007-09-18 Lucent Technologies Inc. Scalable and embedded codec for speech and audio signals
US6775649B1 (en) * 1999-09-01 2004-08-10 Texas Instruments Incorporated Concealment of frame erasures for speech transmission and storage system and method
US6625226B1 (en) * 1999-12-03 2003-09-23 Allen Gersho Variable bit rate coder, and associated method, for a communication station operable in a communication system
US6687668B2 (en) * 1999-12-31 2004-02-03 C & S Technology Co., Ltd. Method for improvement of G.723.1 processing time and speech quality and for reduction of bit rate in CELP vocoder and CELP vococer using the same
US6850884B2 (en) * 2000-09-15 2005-02-01 Mindspeed Technologies, Inc. Selection of coding parameters based on spectral content of a speech signal
US7319703B2 (en) * 2001-09-04 2008-01-15 Nokia Corporation Method and apparatus for reducing synchronization delay in packet-based voice terminals by resynchronizing during talk spurts
US7512535B2 (en) * 2001-10-03 2009-03-31 Broadcom Corporation Adaptive postfiltering methods and systems for decoding speech
US20040002856A1 (en) * 2002-03-08 2004-01-01 Udaya Bhaskar Multi-rate frequency domain interpolative speech CODEC system
CA2388352A1 (en) * 2002-05-31 2003-11-30 Voiceage Corporation A method and device for frequency-selective pitch enhancement of synthesized speed
US7391812B2 (en) * 2002-07-14 2008-06-24 Apple Inc. Adaptively post filtering encoded video
US7394833B2 (en) * 2003-02-11 2008-07-01 Nokia Corporation Method and apparatus for reducing synchronization delay in packet switched voice terminals using speech decoder modification
US7478040B2 (en) * 2003-10-24 2009-01-13 Broadcom Corporation Method for adaptive filtering
US7987089B2 (en) * 2006-07-31 2011-07-26 Qualcomm Incorporated Systems and methods for modifying a zero pad region of a windowed frame of an audio signal

Also Published As

Publication number Publication date
JP2010520505A (ja) 2010-06-10
EP2132733A1 (de) 2009-12-16
JP5097219B2 (ja) 2012-12-12
WO2008108702A1 (en) 2008-09-12
ES2383365T3 (es) 2012-06-20
CN101622666A (zh) 2010-01-06
CN101622666B (zh) 2012-08-15
EP2132733A4 (de) 2010-12-15
US8620645B2 (en) 2013-12-31
EP2132733B1 (de) 2012-03-07
US20100063805A1 (en) 2010-03-11

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