PL4481731T3 - Układ filtra zawierający konwerter filtra i kompresor filtra i sposób działania układu filtra - Google Patents

Układ filtra zawierający konwerter filtra i kompresor filtra i sposób działania układu filtra

Info

Publication number
PL4481731T3
PL4481731T3 PL24210746.4T PL24210746T PL4481731T3 PL 4481731 T3 PL4481731 T3 PL 4481731T3 PL 24210746 T PL24210746 T PL 24210746T PL 4481731 T3 PL4481731 T3 PL 4481731T3
Authority
PL
Poland
Prior art keywords
filter
operating
compressor
converter
filter system
Prior art date
Application number
PL24210746.4T
Other languages
English (en)
Inventor
Lars Villemoes
Original Assignee
Dolby International Ab
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 International Ab filed Critical Dolby International Ab
Publication of PL4481731T3 publication Critical patent/PL4481731T3/pl

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • 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
    • H03H17/0272—Quadrature mirror filters
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • 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
    • G10L19/0204—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 using subband decomposition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Compressor (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
PL24210746.4T 2006-07-04 2007-07-03 Układ filtra zawierający konwerter filtra i kompresor filtra i sposób działania układu filtra PL4481731T3 (pl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0601462 2006-07-04
US80660706P 2006-07-05 2006-07-05

Publications (1)

Publication Number Publication Date
PL4481731T3 true PL4481731T3 (pl) 2025-12-01

Family

ID=41003589

Family Applications (2)

Application Number Title Priority Date Filing Date
PL24210746.4T PL4481731T3 (pl) 2006-07-04 2007-07-03 Układ filtra zawierający konwerter filtra i kompresor filtra i sposób działania układu filtra
PL11160966T PL2337224T3 (pl) 2006-07-04 2007-07-03 Jednostka filtra oraz sposób wytwarzania odpowiedzi impulsowych filtrów podpasmowych

Family Applications After (1)

Application Number Title Priority Date Filing Date
PL11160966T PL2337224T3 (pl) 2006-07-04 2007-07-03 Jednostka filtra oraz sposób wytwarzania odpowiedzi impulsowych filtrów podpasmowych

Country Status (15)

Country Link
US (1) US8255212B2 (pl)
EP (8) EP4481731B1 (pl)
JP (1) JP4704499B2 (pl)
KR (1) KR101201167B1 (pl)
CN (1) CN101512899B (pl)
AR (1) AR061807A1 (pl)
DK (1) DK2337224T3 (pl)
ES (6) ES3044633T3 (pl)
HK (1) HK1246013B (pl)
HU (4) HUE043155T2 (pl)
MY (1) MY151651A (pl)
PL (2) PL4481731T3 (pl)
TR (1) TR201902417T4 (pl)
TW (1) TWI351022B (pl)
WO (1) WO2008003467A1 (pl)

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CN106024008B (zh) 2013-04-05 2020-01-14 杜比实验室特许公司 使用高级频谱延拓降低量化噪声的压扩装置和方法
WO2014171791A1 (ko) 2013-04-19 2014-10-23 한국전자통신연구원 다채널 오디오 신호 처리 장치 및 방법
CN103269212B (zh) * 2013-05-14 2016-05-18 泉州市天龙电子科技有限公司 低成本低功耗可编程多级fir滤波器实现方法
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EP2830045A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Concept for audio encoding and decoding for audio channels and audio objects
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EP2830049A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for efficient object metadata coding
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KR101804744B1 (ko) * 2013-10-22 2017-12-06 연세대학교 산학협력단 오디오 신호 처리 방법 및 장치
US9286902B2 (en) 2013-12-16 2016-03-15 Gracenote, Inc. Audio fingerprinting
KR101627657B1 (ko) 2013-12-23 2016-06-07 주식회사 윌러스표준기술연구소 오디오 신호의 필터 생성 방법 및 이를 위한 파라메터화 장치
KR101782917B1 (ko) 2014-03-19 2017-09-28 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
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CN105553893B (zh) * 2016-01-07 2021-04-09 广东新岸线科技有限公司 一种时域信道冲激响应的估计方法和装置
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Also Published As

Publication number Publication date
KR20090028755A (ko) 2009-03-19
EP4564349A2 (en) 2025-06-04
ES2994934T3 (en) 2025-02-04
CN101512899B (zh) 2012-12-26
EP3739752A1 (en) 2020-11-18
TWI351022B (en) 2011-10-21
WO2008003467A1 (en) 2008-01-10
TR201902417T4 (tr) 2019-03-21
EP3236587B1 (en) 2018-11-21
EP2337224A3 (en) 2012-01-25
EP2337224B1 (en) 2017-06-21
KR101201167B1 (ko) 2012-11-13
EP2036201A1 (en) 2009-03-18
AR061807A1 (es) 2008-09-24
EP4564349B1 (en) 2026-01-21
EP3447916A1 (en) 2019-02-27
HUE043155T2 (hu) 2019-08-28
DK2337224T3 (en) 2017-10-02
ES2712457T3 (es) 2019-05-13
US20100017195A1 (en) 2010-01-21
EP4481731A2 (en) 2024-12-25
JP2009542137A (ja) 2009-11-26
ES2638269T3 (es) 2017-10-19
PL2337224T3 (pl) 2017-11-30
EP3985873B1 (en) 2024-11-06
EP2036201B1 (en) 2017-02-01
CN101512899A (zh) 2009-08-19
ES3044633T3 (en) 2025-11-27
US8255212B2 (en) 2012-08-28
EP2337224A2 (en) 2011-06-22
EP4564349A3 (en) 2025-08-27
HUE069351T2 (hu) 2025-03-28
EP4481731B1 (en) 2025-08-27
TW200813981A (en) 2008-03-16
HUE057855T2 (hu) 2022-06-28
ES2623226T3 (es) 2017-07-10
EP3739752B1 (en) 2021-12-15
EP4481731A3 (en) 2025-03-26
MY151651A (en) 2014-06-30
EP3236587A1 (en) 2017-10-25
EP3447916B1 (en) 2020-07-15
EP4564349C0 (en) 2026-01-21
EP3985873A1 (en) 2022-04-20
EP4481731C0 (en) 2025-08-27
ES2905764T3 (es) 2022-04-12
JP4704499B2 (ja) 2011-06-15
HK1246013B (en) 2019-11-29
HUE073562T2 (hu) 2026-01-28

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