SE470577B - Förfarande och anordning för kodning och/eller avkodning av bakgrundsljud - Google Patents

Förfarande och anordning för kodning och/eller avkodning av bakgrundsljud

Info

Publication number
SE470577B
SE470577B SE9300290A SE9300290A SE470577B SE 470577 B SE470577 B SE 470577B SE 9300290 A SE9300290 A SE 9300290A SE 9300290 A SE9300290 A SE 9300290A SE 470577 B SE470577 B SE 470577B
Authority
SE
Sweden
Prior art keywords
filter
parameters
signal
filter parameters
encoder
Prior art date
Application number
SE9300290A
Other languages
English (en)
Swedish (sv)
Other versions
SE9300290L (sv
SE9300290D0 (sv
Inventor
Rolf Anders Bergstroem
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
Priority to SE9300290A priority Critical patent/SE470577B/sv
Publication of SE9300290D0 publication Critical patent/SE9300290D0/xx
Priority to TW083100126A priority patent/TW262618B/zh
Priority to PH47606A priority patent/PH31235A/en
Priority to MYPI94000094A priority patent/MY111784A/en
Priority to CN94190028A priority patent/CN1044293C/zh
Priority to KR1019940703375A priority patent/KR100216018B1/ko
Priority to SG1996001232A priority patent/SG46992A1/en
Priority to NZ261180A priority patent/NZ261180A/en
Priority to ES94905887T priority patent/ES2121189T3/es
Priority to EP94905887A priority patent/EP0634041B1/de
Priority to AT94905887T priority patent/ATE168809T1/de
Priority to BR9403927A priority patent/BR9403927A/pt
Priority to JP6516912A priority patent/JPH07505732A/ja
Priority to PCT/SE1994/000027 priority patent/WO1994017515A1/en
Priority to AU59813/94A priority patent/AU666612B2/en
Priority to CA002133071A priority patent/CA2133071A1/en
Priority to DE69411817T priority patent/DE69411817T2/de
Priority to DK94905887T priority patent/DK0634041T3/da
Priority to US08/187,866 priority patent/US5632004A/en
Publication of SE9300290L publication Critical patent/SE9300290L/xx
Publication of SE470577B publication Critical patent/SE470577B/sv
Priority to NO943584A priority patent/NO306688B1/no
Priority to FI944494A priority patent/FI944494A0/fi
Priority to HK98115221A priority patent/HK1015183A1/xx

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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
SE9300290A 1993-01-29 1993-01-29 Förfarande och anordning för kodning och/eller avkodning av bakgrundsljud SE470577B (sv)

Priority Applications (22)

Application Number Priority Date Filing Date Title
SE9300290A SE470577B (sv) 1993-01-29 1993-01-29 Förfarande och anordning för kodning och/eller avkodning av bakgrundsljud
TW083100126A TW262618B (de) 1993-01-29 1994-01-08
PH47606A PH31235A (en) 1993-01-29 1994-01-11 Method and apparatus for encoding/decoding of background sounds.
MYPI94000094A MY111784A (en) 1993-01-29 1994-01-14 Method and apparatus for encoding/decoding of background sounds
DK94905887T DK0634041T3 (da) 1993-01-29 1994-01-17 Fremgangsmåde og apparatur til indkodning/dekodning af baggrundslyde
AT94905887T ATE168809T1 (de) 1993-01-29 1994-01-17 Verfahren und vorrichtung zur kodierung/dekodierung von hintergrundgeräuschen
PCT/SE1994/000027 WO1994017515A1 (en) 1993-01-29 1994-01-17 Method and apparatus for encoding/decoding of background sounds
SG1996001232A SG46992A1 (en) 1993-01-29 1994-01-17 Method and apparatus for encoding/ decoding of background sounds
NZ261180A NZ261180A (en) 1993-01-29 1994-01-17 Coder/decoder for background sounds in digital telephony
ES94905887T ES2121189T3 (es) 1993-01-29 1994-01-17 Procedimiento y aparato de codificado/decodificado de ruidos de fondo.
EP94905887A EP0634041B1 (de) 1993-01-29 1994-01-17 Verfahren und vorrichtung zur kodierung/dekodierung von hintergrundgeräuschen
CN94190028A CN1044293C (zh) 1993-01-29 1994-01-17 背景音的编码/译码方法和设备
BR9403927A BR9403927A (pt) 1993-01-29 1994-01-17 Processo e aparelho para codificar e/ou decodificar sons de fundo em um condificador e/ou decodificador de voz baseado em quadros digitais
JP6516912A JPH07505732A (ja) 1993-01-29 1994-01-17 背景音を符号化／復号する方法および装置
KR1019940703375A KR100216018B1 (ko) 1993-01-29 1994-01-17 배경음을 엔코딩 및 디코딩하는 방법 및 장치
AU59813/94A AU666612B2 (en) 1993-01-29 1994-01-17 Method and apparatus for encoding/decoding of background sounds
CA002133071A CA2133071A1 (en) 1993-01-29 1994-01-17 Method and apparatus for encoding/decoding of background sounds
DE69411817T DE69411817T2 (de) 1993-01-29 1994-01-17 Verfahren und vorrichtung zur kodierung/dekodierung von hintergrundgeräuschen
US08/187,866 US5632004A (en) 1993-01-29 1994-01-28 Method and apparatus for encoding/decoding of background sounds
NO943584A NO306688B1 (no) 1993-01-29 1994-09-27 FremgangsmÕte og anordning for koding/dekoding av bakgrunnslyder
FI944494A FI944494A0 (fi) 1993-01-29 1994-09-28 Menetelmä ja laite taustaäänien koodaamiseksi/dekoodaamiseksi
HK98115221A HK1015183A1 (en) 1993-01-29 1998-12-23 Method and apparatus for encoding/decoding of background sounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9300290A SE470577B (sv) 1993-01-29 1993-01-29 Förfarande och anordning för kodning och/eller avkodning av bakgrundsljud

Publications (3)

Publication Number Publication Date
SE9300290D0 SE9300290D0 (sv) 1993-01-29
SE9300290L SE9300290L (sv) 1994-07-30
SE470577B true SE470577B (sv) 1994-09-19

Family

ID=20388714

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9300290A SE470577B (sv) 1993-01-29 1993-01-29 Förfarande och anordning för kodning och/eller avkodning av bakgrundsljud

Country Status (22)

Country Link
US (1) US5632004A (de)
EP (1) EP0634041B1 (de)
JP (1) JPH07505732A (de)
KR (1) KR100216018B1 (de)
CN (1) CN1044293C (de)
AT (1) ATE168809T1 (de)
AU (1) AU666612B2 (de)
BR (1) BR9403927A (de)
CA (1) CA2133071A1 (de)
DE (1) DE69411817T2 (de)
DK (1) DK0634041T3 (de)
ES (1) ES2121189T3 (de)
FI (1) FI944494A0 (de)
HK (1) HK1015183A1 (de)
MY (1) MY111784A (de)
NO (1) NO306688B1 (de)
NZ (1) NZ261180A (de)
PH (1) PH31235A (de)
SE (1) SE470577B (de)
SG (1) SG46992A1 (de)
TW (1) TW262618B (de)
WO (1) WO1994017515A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501305C2 (sv) * 1993-05-26 1995-01-09 Ericsson Telefon Ab L M Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler
EP0737959A4 (de) * 1994-10-28 1999-05-06 Nippon Steel Corp Vorrichtung zum dekodieren von kodierten daten und diese verwendende vorrichtung zum dekodieren von multiplexierten audio/video daten
US5642464A (en) * 1995-05-03 1997-06-24 Northern Telecom Limited Methods and apparatus for noise conditioning in digital speech compression systems using linear predictive coding
US5950151A (en) * 1996-02-12 1999-09-07 Lucent Technologies Inc. Methods for implementing non-uniform filters
US6026356A (en) * 1997-07-03 2000-02-15 Nortel Networks Corporation Methods and devices for noise conditioning signals representative of audio information in compressed and digitized form
JP2982147B1 (ja) * 1998-10-08 1999-11-22 コナミ株式会社 背景音切替装置、背景音切替方法、背景音切替プログラムが記録された可読記録媒体及びビデオゲーム装置
JP2000112485A (ja) 1998-10-08 2000-04-21 Konami Co Ltd 背景音制御装置、背景音制御方法、背景音制御プログラムが記録された可読記録媒体及びビデオゲーム装置
US6519260B1 (en) 1999-03-17 2003-02-11 Telefonaktiebolaget Lm Ericsson (Publ) Reduced delay priority for comfort noise
AU1049601A (en) * 1999-10-25 2001-05-08 Lernout And Hauspie Speech Products N.V. Small vocabulary speaker dependent speech recognition
JP4095227B2 (ja) 2000-03-13 2008-06-04 株式会社コナミデジタルエンタテインメント ビデオゲーム装置、ビデオゲームにおける背景音出力設定方法及び背景音出力設定プログラムが記録されたコンピュータ読み取り可能な記録媒体
US8100277B1 (en) 2005-07-14 2012-01-24 Rexam Closures And Containers Inc. Peelable seal for an opening in a container neck
ES2548010T3 (es) 2007-03-05 2015-10-13 Telefonaktiebolaget Lm Ericsson (Publ) Procedimiento y dispositivo para suavizar ruido de fondo estacionario
PL2118889T3 (pl) 2007-03-05 2013-03-29 Ericsson Telefon Ab L M Sposób i sterownik do wygładzania stacjonarnego szumu tła
US8251236B1 (en) 2007-11-02 2012-08-28 Berry Plastics Corporation Closure with lifting mechanism
CN105440018A (zh) * 2015-11-27 2016-03-30 福州闽海药业有限公司 一种锆催化的右旋兰索拉唑的不对称氧化合成方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363122A (en) * 1980-09-16 1982-12-07 Northern Telecom Limited Mitigation of noise signal contrast in a digital speech interpolation transmission system
GB2137791B (en) * 1982-11-19 1986-02-26 Secr Defence Noise compensating spectral distance processor
US4700361A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation Spectral emphasis and de-emphasis
CA1335003C (en) * 1988-03-11 1995-03-28 Daniel Kenneth Freeman Voice activity detection
US5007094A (en) * 1989-04-07 1991-04-09 Gte Products Corporation Multipulse excited pole-zero filtering approach for noise reduction
JPH02288520A (ja) * 1989-04-28 1990-11-28 Hitachi Ltd 背景音再生機能付き音声符号復号方式
GB2239971B (en) * 1989-12-06 1993-09-29 Ca Nat Research Council System for separating speech from background noise
DE69121312T2 (de) * 1990-05-28 1997-01-02 Matsushita Electric Ind Co Ltd Geräuschsignalvorhersagevorrichtung
US5218619A (en) * 1990-12-17 1993-06-08 Ericsson Ge Mobile Communications Holding, Inc. CDMA subtractive demodulation
US5341456A (en) * 1992-12-02 1994-08-23 Qualcomm Incorporated Method for determining speech encoding rate in a variable rate vocoder

Also Published As

Publication number Publication date
MY111784A (en) 2000-12-30
SG46992A1 (en) 1998-03-20
KR950701113A (ko) 1995-02-20
CN1101214A (zh) 1995-04-05
ES2121189T3 (es) 1998-11-16
EP0634041A1 (de) 1995-01-18
FI944494A (fi) 1994-09-28
EP0634041B1 (de) 1998-07-22
NO306688B1 (no) 1999-12-06
HK1015183A1 (en) 1999-10-08
DE69411817T2 (de) 1998-12-03
NO943584L (no) 1994-09-27
CN1044293C (zh) 1999-07-21
JPH07505732A (ja) 1995-06-22
KR100216018B1 (ko) 1999-08-16
CA2133071A1 (en) 1994-07-30
AU5981394A (en) 1994-08-15
BR9403927A (pt) 1999-06-01
US5632004A (en) 1997-05-20
ATE168809T1 (de) 1998-08-15
NZ261180A (en) 1996-07-26
WO1994017515A1 (en) 1994-08-04
PH31235A (en) 1998-06-16
DE69411817D1 (de) 1998-08-27
NO943584D0 (no) 1994-09-27
SE9300290L (sv) 1994-07-30
DK0634041T3 (da) 1998-10-26
AU666612B2 (en) 1996-02-15
FI944494A0 (fi) 1994-09-28
TW262618B (de) 1995-11-11
SE9300290D0 (sv) 1993-01-29

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