[go: up one dir, main page]

AR061807A1 - Compresor de filtro y metodo para fabricar respuestas al impulso de filtro de subbanda comprimida - Google Patents

Compresor de filtro y metodo para fabricar respuestas al impulso de filtro de subbanda comprimida

Info

Publication number
AR061807A1
AR061807A1 ARP070102975A ARP070102975A AR061807A1 AR 061807 A1 AR061807 A1 AR 061807A1 AR P070102975 A ARP070102975 A AR P070102975A AR P070102975 A ARP070102975 A AR P070102975A AR 061807 A1 AR061807 A1 AR 061807A1
Authority
AR
Argentina
Prior art keywords
filter
values
value
filter pulse
response
Prior art date
Application number
ARP070102975A
Other languages
English (en)
Original Assignee
Coding Tech 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 Coding Tech Ab filed Critical Coding Tech Ab
Publication of AR061807A1 publication Critical patent/AR061807A1/es

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)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compressor (AREA)

Abstract

Un compresor de filtro (102) para generar respuestas al impulso de filtro de subbanda comprimidas de respuestas al impulso de filtro de subbanda de entrada correspondientes a subbandas, que comprenden valores de respuesta al impulso de filtro en tomas de filtro, comprende un procesador (820) para examinar los valores de respuesta al impulso de filtro de al menos dos respuestas de entrada de filtro de subbanda de entrada para hallar valores de respuesta al impulso de filtro que tienen valores superiores y al menos un valor de respuesta al impulso de filtro que tiene a un valor que es inferior a los valores superiores, y un constructor de respuesta al impulso de filtro (305) para construir las respuestas al impulso de filtro de subbanda comprimidas que utilizan los valores de respuesta al impulso de filtro que tienen los valores superiores, donde las respuestas al impulso de filtro de subbanda comprimidas no incluyen valores de respuesta al impulso de filtro correspondientes a tomas de filtro del al menos un valor de respuesta al impulso de filtro que tiene el valor inferior o comprende valores de valor cero correspondientes a tomas de filtro del al menos un valor de respuesta al impulso de filtro que tiene el valor inferior.
ARP070102975A 2006-07-04 2007-07-03 Compresor de filtro y metodo para fabricar respuestas al impulso de filtro de subbanda comprimida AR061807A1 (es)

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
AR061807A1 true AR061807A1 (es) 2008-09-24

Family

ID=41003589

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP070102975A AR061807A1 (es) 2006-07-04 2007-07-03 Compresor de filtro y metodo para fabricar respuestas al impulso de filtro de subbanda comprimida

Country Status (15)

Country Link
US (1) US8255212B2 (es)
EP (8) EP2337224B1 (es)
JP (1) JP4704499B2 (es)
KR (1) KR101201167B1 (es)
CN (1) CN101512899B (es)
AR (1) AR061807A1 (es)
DK (1) DK2337224T3 (es)
ES (6) ES2905764T3 (es)
HK (1) HK1246013B (es)
HU (3) HUE057855T2 (es)
MY (1) MY151651A (es)
PL (2) PL2337224T3 (es)
TR (1) TR201902417T4 (es)
TW (1) TWI351022B (es)
WO (1) WO2008003467A1 (es)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2159790B1 (en) * 2007-06-27 2019-11-13 NEC Corporation Audio encoding method, audio decoding method, audio encoding device, audio decoding device, program, and audio encoding/decoding system
BRPI1009648B1 (pt) 2009-06-24 2020-12-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V decodificador de sinal de áudio, método para decodificador um sinal de áudio e programa de computador com o uso de etapas de processamento de objeto de áudio em cascata
WO2011083979A2 (en) 2010-01-06 2011-07-14 Lg Electronics Inc. An apparatus for processing an audio signal and method thereof
JP5882917B2 (ja) * 2010-02-26 2016-03-09 インダストリー−ユニバーシティーコオペレーション ファウンデーション ハンヤン ユニバーシティー 周波数再構成が可能なデジタルフィルタとフィルタリング方法及びこれを用いたイコライザとその設計方法
EP2365630B1 (en) * 2010-03-02 2016-06-08 Harman Becker Automotive Systems GmbH Efficient sub-band adaptive fir-filtering
CN102013879B (zh) * 2010-09-10 2014-09-03 建荣集成电路科技(珠海)有限公司 Mp3音乐均衡调节装置及方法
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
CN103004086B (zh) 2012-09-27 2016-06-08 华为技术有限公司 基于误差子带的自适应滤波方法及系统
CN107452392B (zh) * 2013-01-08 2020-09-01 杜比国际公司 临界采样滤波器组中的基于模型的预测
EA028755B9 (ru) 2013-04-05 2018-04-30 Долби Лабораторис Лайсэнзин Корпорейшн Система компандирования и способ для снижения шума квантования с использованием усовершенствованного спектрального расширения
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
FR3006535A1 (fr) * 2013-05-28 2014-12-05 France Telecom Procede et dispositif de modulation delivrant un signal a porteuses multiples, procede et dispositif de demodulation et programme d’ordinateur correspondants.
EP2830050A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for enhanced spatial audio object coding
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
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
EP2830064A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding and encoding an audio signal using adaptive spectral tile selection
US9319819B2 (en) * 2013-07-25 2016-04-19 Etri Binaural rendering method and apparatus for decoding multi channel audio
KR102159990B1 (ko) * 2013-09-17 2020-09-25 주식회사 윌러스표준기술연구소 멀티미디어 신호 처리 방법 및 장치
WO2015060652A1 (ko) 2013-10-22 2015-04-30 연세대학교 산학협력단 오디오 신호 처리 방법 및 장치
US9286902B2 (en) 2013-12-16 2016-03-15 Gracenote, Inc. Audio fingerprinting
KR102215124B1 (ko) 2013-12-23 2021-02-10 주식회사 윌러스표준기술연구소 오디오 신호의 필터 생성 방법 및 이를 위한 파라메터화 장치
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
WO2015152663A2 (ko) 2014-04-02 2015-10-08 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
EP3219115A1 (en) * 2014-11-11 2017-09-20 Google, Inc. 3d immersive spatial audio systems and methods
EP3048608A1 (en) * 2015-01-20 2016-07-27 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Speech reproduction device configured for masking reproduced speech in a masked speech zone
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
US9742599B2 (en) * 2016-01-19 2017-08-22 Hughes Network Systems, Llc Partial response signaling techniques for single and multi-carrier nonlinear satellite systems
TW202516861A (zh) 2019-06-26 2025-04-16 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
KR102838370B1 (ko) 2019-09-03 2025-07-25 돌비 레버러토리즈 라이쎈싱 코오포레이션 역상관 컴포넌트를 갖는 오디오 필터뱅크

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692801A (en) * 1985-05-20 1987-09-08 Nippon Hoso Kyokai Bandwidth compressed transmission system
US6252909B1 (en) * 1992-09-21 2001-06-26 Aware, Inc. Multi-carrier transmission system utilizing channels of different bandwidth
JP3465698B2 (ja) 1993-05-31 2003-11-10 ソニー株式会社 信号復号化方法及び装置
JP3336617B2 (ja) * 1993-05-31 2002-10-21 ソニー株式会社 信号符号化又は復号化装置，及び信号符号化又は復号化方法，並びに記録媒体
WO1995031881A1 (en) 1994-05-11 1995-11-23 Aureal Semiconductor Inc. Three-dimensional virtual audio display employing reduced complexity imaging filters
GB9606814D0 (en) 1996-03-30 1996-06-05 Central Research Lab Ltd Apparatus for processing stereophonic signals
US6252535B1 (en) * 1997-08-21 2001-06-26 Data Fusion Corporation Method and apparatus for acquiring wide-band pseudorandom noise encoded waveforms
US5923273A (en) 1996-11-18 1999-07-13 Crystal Semiconductor Corporation Reduced power FIR filter
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
US6029126A (en) * 1998-06-30 2000-02-22 Microsoft Corporation Scalable audio coder and decoder
US6442197B1 (en) 1999-02-26 2002-08-27 Texas Instruments Incorporated Phase-shift calculation method, and system implementing it, for a finite-impulse-response (FIR) filter
EP1047047B1 (en) * 1999-03-23 2005-02-02 Nippon Telegraph and Telephone Corporation Audio signal coding and decoding methods and apparatus and recording media with programs therefor
JP3434260B2 (ja) 1999-03-23 2003-08-04 日本電信電話株式会社 オーディオ信号符号化方法及び復号化方法、これらの装置及びプログラム記録媒体
US7043423B2 (en) * 2002-07-16 2006-05-09 Dolby Laboratories Licensing Corporation Low bit-rate audio coding systems and methods that use expanding quantizers with arithmetic coding
US7272566B2 (en) * 2003-01-02 2007-09-18 Dolby Laboratories Licensing Corporation Reducing scale factor transmission cost for MPEG-2 advanced audio coding (AAC) using a lattice based post processing technique
CN1875402B (zh) 2003-10-30 2012-03-21 皇家飞利浦电子股份有限公司 音频信号编码或解码
EP1691348A1 (en) * 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametric joint-coding of audio sources

Also Published As

Publication number Publication date
US20100017195A1 (en) 2010-01-21
EP3985873A1 (en) 2022-04-20
EP4564349A2 (en) 2025-06-04
US8255212B2 (en) 2012-08-28
EP2337224A3 (en) 2012-01-25
EP4481731A3 (en) 2025-03-26
EP3447916A1 (en) 2019-02-27
PL4481731T3 (pl) 2025-12-01
EP3236587B1 (en) 2018-11-21
EP3985873B1 (en) 2024-11-06
EP2337224B1 (en) 2017-06-21
ES2623226T3 (es) 2017-07-10
EP4481731A2 (en) 2024-12-25
EP3739752A1 (en) 2020-11-18
DK2337224T3 (en) 2017-10-02
ES2712457T3 (es) 2019-05-13
EP3236587A1 (en) 2017-10-25
EP2036201A1 (en) 2009-03-18
KR101201167B1 (ko) 2012-11-13
TW200813981A (en) 2008-03-16
CN101512899B (zh) 2012-12-26
JP4704499B2 (ja) 2011-06-15
ES2905764T3 (es) 2022-04-12
HUE043155T2 (hu) 2019-08-28
ES2638269T3 (es) 2017-10-19
EP2036201B1 (en) 2017-02-01
HK1246013B (en) 2019-11-29
EP3739752B1 (en) 2021-12-15
EP3447916B1 (en) 2020-07-15
WO2008003467A1 (en) 2008-01-10
EP4481731B1 (en) 2025-08-27
ES2994934T3 (en) 2025-02-04
EP4564349A3 (en) 2025-08-27
HUE069351T2 (hu) 2025-03-28
CN101512899A (zh) 2009-08-19
TR201902417T4 (tr) 2019-03-21
JP2009542137A (ja) 2009-11-26
HUE057855T2 (hu) 2022-06-28
ES3044633T3 (en) 2025-11-27
EP4481731C0 (en) 2025-08-27
TWI351022B (en) 2011-10-21
KR20090028755A (ko) 2009-03-19
MY151651A (en) 2014-06-30
PL2337224T3 (pl) 2017-11-30
EP4564349B1 (en) 2026-01-21
EP2337224A2 (en) 2011-06-22

Similar Documents

Publication Publication Date Title
AR061807A1 (es) Compresor de filtro y metodo para fabricar respuestas al impulso de filtro de subbanda comprimida
AR032706A1 (es) Conjunto de herramientas de monitoreo de unidades de proceso
SA518400658B1 (ar) جهاز موجه لإدخال تماسي في الحيز تحت الشبكية
ECSP10010344A (es) Azolilmetiloxiranos, su uso y agentes que los contienen
TW200623463A (en) Light emitting device
MX378705B (es) Soporte elástico que comprende una malla extruida y método para su producción.
MX390297B (es) Muelles no lineales y colchones que incluyen los mismos.
WO2006045022A3 (en) High voltage level shifting by capacitive coupling
AR034023A1 (es) Compuestos benzimidazoles para modular la ige e inhibir la proliferacion celular
WO2007067241A3 (en) Dental curing lights including a capacitor power source
WO2009112797A3 (en) A fatigue test arrangement
Beal et al. Compressed parameterized pattern matching
TW200742021A (en) Integrated circuit arrangement having a plurality of conductive structure levels and capacitor, and method
AR098303A1 (es) Aparato de led de alumbrado público
DE112007001146A5 (de) Vorrichtung zur Nachbildung der Symmetrischen und Asymmetrische Impedanz einer Asynchronmaschine
WO2016083948A3 (en) Apparatuses and methods for generating and measuring environmental levels of allergens
di Napoli Existence and regularity results for a class of equations with logarithmic growth
EP4625138A4 (en) SCREEN DUPLICATION METHOD, ELECTRONIC DEVICE AND COMPUTER-READABLE MEDIA
JP2004288503A5 (es)
Garibaldi et al. Globally irreducible Weyl modules
Castro et al. On fundamental harmonic analysis operators in certain Dunkl and Bessel settings
PL120760U1 (pl) Uniwersalny zespól mocujacy podlokietnik do bazy mebla
ES2545702B1 (es) Dispositivo de comprobación de un relé DME
Nhi Index of nilpotency, multiplicities and blowing-up by specializations
Michalak On uncomplemented isometric copies of c0 in spaces of continuous functions on products of the two-arrows space II

Legal Events

Date Code Title Description
FG Grant, registration