MY185104A - Low delay real-to-complex conversion in overlapping filter banks for partially complex processing - Google Patents

Low delay real-to-complex conversion in overlapping filter banks for partially complex processing

Info

Publication number
MY185104A
MY185104A MYPI2014701876A MYPI2014701876A MY185104A MY 185104 A MY185104 A MY 185104A MY PI2014701876 A MYPI2014701876 A MY PI2014701876A MY PI2014701876 A MYPI2014701876 A MY PI2014701876A MY 185104 A MY185104 A MY 185104A
Authority
MY
Malaysia
Prior art keywords
signal
complex
filter banks
stage
overlapping filter
Prior art date
Application number
MYPI2014701876A
Other languages
English (en)
Inventor
Lars Villemoes
Harald Mundt
Original Assignee
Dolby Int 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 Int Ab filed Critical Dolby Int Ab
Publication of MY185104A publication Critical patent/MY185104A/en

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks
    • H03H17/0248Filters characterised by a particular frequency response or filtering method
    • H03H17/0264Filter sets with mutual related characteristics
    • H03H17/0266Filter banks
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/0204Speech 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78Detection of presence or absence of voice signals
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G5/00Tone control or bandwidth control in amplifiers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
MYPI2014701876A 2012-02-24 2013-02-22 Low delay real-to-complex conversion in overlapping filter banks for partially complex processing MY185104A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261602848P 2012-02-24 2012-02-24
US201261622389P 2012-04-10 2012-04-10
PCT/EP2013/053607 WO2013124443A1 (en) 2012-02-24 2013-02-22 Low delay real-to-complex conversion in overlapping filter banks for partially complex processing

Publications (1)

Publication Number Publication Date
MY185104A true MY185104A (en) 2021-04-30

Family

ID=47844274

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2014701876A MY185104A (en) 2012-02-24 2013-02-22 Low delay real-to-complex conversion in overlapping filter banks for partially complex processing

Country Status (17)

Country Link
US (1) US9374054B2 (https=)
EP (1) EP2817882B1 (https=)
JP (1) JP5853111B2 (https=)
KR (1) KR101715639B1 (https=)
CN (1) CN104170253B (https=)
AR (1) AR090125A1 (https=)
AU (1) AU2013223996B2 (https=)
BR (1) BR112014020594B1 (https=)
CA (1) CA2861299C (https=)
CL (1) CL2014002224A1 (https=)
IL (1) IL233648A (https=)
MX (1) MX2014009802A (https=)
MY (1) MY185104A (https=)
RU (1) RU2628219C2 (https=)
SG (1) SG11201403929SA (https=)
TW (1) TWI575962B (https=)
WO (1) WO2013124443A1 (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8971551B2 (en) 2009-09-18 2015-03-03 Dolby International Ab Virtual bass synthesis using harmonic transposition
JP5894347B2 (ja) * 2012-10-15 2016-03-30 ドルビー・インターナショナル・アーベー 転移器に基づく仮想ベース・システムにおけるレイテンシーを低減するシステムおよび方法
CN106105269B (zh) * 2014-03-19 2018-06-19 韦勒斯标准与技术协会公司 音频信号处理方法和设备
KR102216801B1 (ko) * 2014-04-02 2021-02-17 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
KR101525207B1 (ko) * 2014-11-24 2015-06-04 가락전자 주식회사 오디오 스트림 사이의 신호 동기화 방법
WO2016085011A1 (ko) * 2014-11-24 2016-06-02 가락전자 주식회사 오디오 스트림 사이의 신호 동기화 방법
US9438287B2 (en) * 2014-12-05 2016-09-06 Intel Corporation Apparatus and method for mitigating loss of signal content
EP3475944B1 (en) * 2016-06-22 2020-07-15 Dolby International AB Audio decoder and method for transforming a digital audio signal from a first to a second frequency domain
CN109328382B (zh) * 2016-06-22 2023-06-16 杜比国际公司 用于将数字音频信号从第一频域变换到第二频域的音频解码器及方法
TWI866996B (zh) * 2019-06-26 2024-12-21 美商杜拜研究特許公司 具有改善頻率解析度的低延遲音訊濾波器組
IL290390B2 (en) 2019-09-03 2025-05-01 Dolby Laboratories Licensing Corp Audio filter array with decoupling elements

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001007769A (ja) * 1999-04-22 2001-01-12 Matsushita Electric Ind Co Ltd 低遅延サブバンド分割/合成装置
US6728385B2 (en) * 2002-02-28 2004-04-27 Nacre As Voice detection and discrimination apparatus and method
DE10234130B3 (de) * 2002-07-26 2004-02-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Erzeugen einer komplexen Spektraldarstellung eines zeitdiskreten Signals
US6980933B2 (en) * 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
KR20070001115A (ko) * 2004-01-28 2007-01-03 코닌클리케 필립스 일렉트로닉스 엔.브이. 복소수 값 데이터를 이용하는 오디오 신호 디코딩
DE102004021403A1 (de) * 2004-04-30 2005-11-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalverarbeitung durch Modifikation in der Spektral-/Modulationsspektralbereichsdarstellung
KR100736607B1 (ko) * 2005-03-31 2007-07-09 엘지전자 주식회사 오디오 부호화 방법 및 장치
US8443026B2 (en) * 2005-09-16 2013-05-14 Dolby International Ab Partially complex modulated filter bank
US7917561B2 (en) * 2005-09-16 2011-03-29 Coding Technologies Ab Partially complex modulated filter bank
ATE448638T1 (de) * 2006-04-13 2009-11-15 Fraunhofer Ges Forschung Audiosignaldekorrelator
EP2011234B1 (en) * 2006-04-27 2010-12-29 Dolby Laboratories Licensing Corporation Audio gain control using specific-loudness-based auditory event detection
DE102006047197B3 (de) * 2006-07-31 2008-01-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Verarbeiten eines reellen Subband-Signals zur Reduktion von Aliasing-Effekten
US8964998B1 (en) * 2011-06-07 2015-02-24 Sound Enhancement Technology, Llc System for dynamic spectral correction of audio signals to compensate for ambient noise in the listener's environment

Also Published As

Publication number Publication date
RU2628219C2 (ru) 2017-08-15
KR101715639B1 (ko) 2017-03-13
JP2015513117A (ja) 2015-04-30
MX2014009802A (es) 2014-09-25
AU2013223996A1 (en) 2014-07-31
KR20140132341A (ko) 2014-11-17
CL2014002224A1 (es) 2014-12-19
BR112014020594B1 (pt) 2021-09-21
TWI575962B (zh) 2017-03-21
EP2817882A1 (en) 2014-12-31
HK1205829A1 (en) 2015-12-24
JP5853111B2 (ja) 2016-02-09
CA2861299A1 (en) 2013-08-29
AU2013223996B2 (en) 2016-01-21
US9374054B2 (en) 2016-06-21
TW201404186A (zh) 2014-01-16
IL233648A (en) 2017-04-30
CN104170253B (zh) 2017-08-01
EP2817882B1 (en) 2020-06-10
CN104170253A (zh) 2014-11-26
BR112014020594A2 (https=) 2017-06-20
CA2861299C (en) 2016-10-25
RU2014134459A (ru) 2016-04-10
SG11201403929SA (en) 2014-10-30
US20150049880A1 (en) 2015-02-19
WO2013124443A1 (en) 2013-08-29
IL233648A0 (en) 2014-08-31
AR090125A1 (es) 2014-10-22

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