KR100378128B1 - - Google Patents

Info

Publication number
KR100378128B1
KR100378128B1 KR10-1997-0706117A KR19970706117A KR100378128B1 KR 100378128 B1 KR100378128 B1 KR 100378128B1 KR 19970706117 A KR19970706117 A KR 19970706117A KR 100378128 B1 KR100378128 B1 KR 100378128B1
Authority
KR
South Korea
Prior art keywords
samples
spectral
complex
valued
critically
Prior art date
Application number
KR10-1997-0706117A
Other languages
English (en)
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 filed Critical
Application granted granted Critical
Publication of KR100378128B1 publication Critical patent/KR100378128B1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Networks Using Active Elements (AREA)
  • Filters And Equalizers (AREA)
KR10-1997-0706117A 1995-03-27 1997-09-02 KR100378128B1 (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/412,377 US5727119A (en) 1995-03-27 1995-03-27 Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase

Publications (1)

Publication Number Publication Date
KR100378128B1 true KR100378128B1 (ko) 2004-03-19

Family

ID=23632747

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-1997-0706117A KR100378128B1 (ko) 1995-03-27 1997-09-02

Country Status (11)

Country Link
US (1) US5727119A (ko)
EP (1) EP0818037B1 (ko)
JP (1) JP4242450B2 (ko)
KR (1) KR100378128B1 (ko)
AT (1) ATE182025T1 (ko)
AU (1) AU696442B2 (ko)
CA (1) CA2213348C (ko)
DE (1) DE69603166T2 (ko)
DK (1) DK0818037T3 (ko)
ES (1) ES2133956T3 (ko)
WO (1) WO1996030894A1 (ko)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3747067B2 (ja) * 1996-02-27 2006-02-22 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 信号の符号化及び復号化方法及び装置
DE19730130C2 (de) * 1997-07-14 2002-02-28 Fraunhofer Ges Forschung Verfahren zum Codieren eines Audiosignals
DE69738204D1 (de) * 1997-08-29 2007-11-22 St Microelectronics Asia Schnelles syntheseverfahren für die sub-bandfiltrierung für die dekodierung von digitalen signalen
US5899969A (en) * 1997-10-17 1999-05-04 Dolby Laboratories Licensing Corporation Frame-based audio coding with gain-control words
US5913191A (en) * 1997-10-17 1999-06-15 Dolby Laboratories Licensing Corporation Frame-based audio coding with additional filterbank to suppress aliasing artifacts at frame boundaries
US5903872A (en) * 1997-10-17 1999-05-11 Dolby Laboratories Licensing Corporation Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries
JPH11219198A (ja) * 1998-01-30 1999-08-10 Sony Corp 位相検出装置及び方法、並びに音声符号化装置及び方法
US6209094B1 (en) 1998-10-14 2001-03-27 Liquid Audio Inc. Robust watermark method and apparatus for digital signals
US6330673B1 (en) 1998-10-14 2001-12-11 Liquid Audio, Inc. Determination of a best offset to detect an embedded pattern
US6219634B1 (en) * 1998-10-14 2001-04-17 Liquid Audio, Inc. Efficient watermark method and apparatus for digital signals
US6320965B1 (en) 1998-10-14 2001-11-20 Liquid Audio, Inc. Secure watermark method and apparatus for digital signals
US6345100B1 (en) 1998-10-14 2002-02-05 Liquid Audio, Inc. Robust watermark method and apparatus for digital signals
US6496795B1 (en) * 1999-05-05 2002-12-17 Microsoft Corporation Modulated complex lapped transform for integrated signal enhancement and coding
US6430529B1 (en) * 1999-02-26 2002-08-06 Sony Corporation System and method for efficient time-domain aliasing cancellation
KR100297832B1 (ko) 1999-05-15 2001-09-26 윤종용 음성 신호 위상 정보 처리 장치 및 그 방법
US6678647B1 (en) * 2000-06-02 2004-01-13 Agere Systems Inc. Perceptual coding of audio signals using cascaded filterbanks for performing irrelevancy reduction and redundancy reduction with different spectral/temporal resolution
US6807528B1 (en) * 2001-05-08 2004-10-19 Dolby Laboratories Licensing Corporation Adding data to a compressed data frame
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
US7330812B2 (en) * 2002-10-04 2008-02-12 National Research Council Of Canada Method and apparatus for transmitting an audio stream having additional payload in a hidden sub-channel
CN100559467C (zh) * 2002-11-29 2009-11-11 皇家飞利浦电子股份有限公司 音频编码
MXPA05012785A (es) * 2003-05-28 2006-02-22 Dolby Lab Licensing Corp Metodo, aparato y programa de computadora para el calculo y ajuste de la sonoridad percibida de una senal de audio.
US6980933B2 (en) * 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
WO2005086139A1 (en) 2004-03-01 2005-09-15 Dolby Laboratories Licensing Corporation Multichannel audio coding
RU2396608C2 (ru) * 2004-04-05 2010-08-10 Конинклейке Филипс Электроникс Н.В. Способ, устройство, кодирующее устройство, декодирующее устройство и аудиосистема
CN1973320B (zh) * 2004-04-05 2010-12-15 皇家飞利浦电子股份有限公司 立体声编码和解码的方法及其设备
TWI498882B (zh) 2004-08-25 2015-09-01 Dolby Lab Licensing Corp 音訊解碼器
TWI393121B (zh) * 2004-08-25 2013-04-11 Dolby Lab Licensing Corp 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
BRPI0518278B1 (pt) 2004-10-26 2018-04-24 Dolby Laboratories Licensing Corporation Método e aparelho para controlar uma característica de sonoridade particular de um sinal de áudio
US8199933B2 (en) 2004-10-26 2012-06-12 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
US20060224390A1 (en) * 2005-04-01 2006-10-05 Pai Ramadas L System, method, and apparatus for audio decoding accelerator
TWI397903B (zh) 2005-04-13 2013-06-01 Dolby Lab Licensing Corp 編碼音訊之節約音量測量技術
CA2752117A1 (en) * 2005-04-18 2006-10-26 Basf Aktiengesellschaft Preparation containing at least one conazole fungicide a further fungicide and a stabilising copolymer
WO2007120452A1 (en) * 2006-04-04 2007-10-25 Dolby Laboratories Licensing Corporation Audio signal loudness measurement and modification in the mdct domain
TWI517562B (zh) 2006-04-04 2016-01-11 杜比實驗室特許公司 用於將多聲道音訊信號之全面感知響度縮放一期望量的方法、裝置及電腦程式
KR101200615B1 (ko) 2006-04-27 2012-11-12 돌비 레버러토리즈 라이쎈싱 코오포레이션 청각 이벤트 검출에 기반한 비-라우드니스를 이용한 자동 이득 제어
WO2008051347A2 (en) 2006-10-20 2008-05-02 Dolby Laboratories Licensing Corporation Audio dynamics processing using a reset
US8521314B2 (en) * 2006-11-01 2013-08-27 Dolby Laboratories Licensing Corporation Hierarchical control path with constraints for audio dynamics processing
WO2008100503A2 (en) * 2007-02-12 2008-08-21 Dolby Laboratories Licensing Corporation Improved ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners
ES2391228T3 (es) 2007-02-26 2012-11-22 Dolby Laboratories Licensing Corporation Realce de voz en audio de entretenimiento
JP5192544B2 (ja) * 2007-07-13 2013-05-08 ドルビー ラボラトリーズ ライセンシング コーポレイション 聴覚情景分析とスペクトルの歪みを用いた音響処理
DE102007035171A1 (de) * 2007-07-27 2009-02-05 Siemens Medical Instruments Pte. Ltd. Verfahren zum Anpassen eines Hörgeräts mit Hilfe eines perzeptiven Modells
US8315398B2 (en) * 2007-12-21 2012-11-20 Dts Llc System for adjusting perceived loudness of audio signals
TWI675367B (zh) 2009-05-27 2019-10-21 瑞典商杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
US8538042B2 (en) 2009-08-11 2013-09-17 Dts Llc System for increasing perceived loudness of speakers
PL2676268T3 (pl) 2011-02-14 2015-05-29 Fraunhofer Ges Forschung Urządzenie i sposób przetwarzania zdekodowanego sygnału audio w domenie widmowej
PT2676270T (pt) 2011-02-14 2017-05-02 Fraunhofer Ges Forschung Codificação de uma parte de um sinal de áudio utilizando uma deteção de transiente e um resultado de qualidade
PT3239978T (pt) 2011-02-14 2019-04-02 Fraunhofer Ges Forschung Codificação e descodificação de posições de pulso de faixas de um sinal de áudio
AR085794A1 (es) 2011-02-14 2013-10-30 Fraunhofer Ges Forschung Prediccion lineal basada en esquema de codificacion utilizando conformacion de ruido de dominio espectral
KR101424372B1 (ko) * 2011-02-14 2014-08-01 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 랩핑 변환을 이용한 정보 신호 표현
WO2013078056A1 (en) 2011-11-22 2013-05-30 Dolby Laboratories Licensing Corporation Method and system for generating an audio metadata quality score
US8527264B2 (en) 2012-01-09 2013-09-03 Dolby Laboratories Licensing Corporation Method and system for encoding audio data with adaptive low frequency compensation
US9312829B2 (en) 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time
TWI538000B (zh) 2012-05-10 2016-06-11 杜比實驗室特許公司 多階段過濾器，音頻編碼器，音頻解碼器，施行多階段過濾的方法，用以編碼音頻資料的方法，用以將編碼音頻資料解碼的方法，及用以處理編碼位元流的方法和裝置
US9460729B2 (en) * 2012-09-21 2016-10-04 Dolby Laboratories Licensing Corporation Layered approach to spatial audio coding
CN107578781B (zh) 2013-01-21 2021-01-29 杜比实验室特许公司 利用响度处理状态元数据的音频编码器和解码器
CN109036443B (zh) 2013-01-21 2023-08-18 杜比实验室特许公司 用于在不同回放设备之间优化响度和动态范围的系统和方法
TR201802631T4 (tr) 2013-01-21 2018-03-21 Dolby Laboratories Licensing Corp Program Ses Şiddeti ve Sınır Meta Verilere Sahip Sesli Enkoder ve Dekoder
TWI530941B (zh) 2013-04-03 2016-04-21 杜比實驗室特許公司 用於基於物件音頻之互動成像的方法與系統
US8804971B1 (en) 2013-04-30 2014-08-12 Dolby International Ab Hybrid encoding of higher frequency and downmixed low frequency content of multichannel audio
US10652856B2 (en) * 2017-06-22 2020-05-12 Telefonaktiebolaget Lm Ericsson (Publ) Transmission and reception of broadcast information in a wireless communication system

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5428318U (ko) * 1977-07-27 1979-02-24
US4567607A (en) * 1983-05-03 1986-01-28 Stereo Concepts, Inc. Stereo image recovery
US4790016A (en) * 1985-11-14 1988-12-06 Gte Laboratories Incorporated Adaptive method and apparatus for coding speech
JPH0646711B2 (ja) * 1985-03-12 1994-06-15 八重洲無線株式会社 スピ−チプロセッサ回路
DE3785189T2 (de) * 1987-04-22 1993-10-07 Ibm Verfahren und Einrichtung zur Veränderung von Sprachgeschwindigkeit.
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
US5109417A (en) * 1989-01-27 1992-04-28 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5297236A (en) * 1989-01-27 1994-03-22 Dolby Laboratories Licensing Corporation Low computational-complexity digital filter bank for encoder, decoder, and encoder/decoder
US5142656A (en) * 1989-01-27 1992-08-25 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5357594A (en) * 1989-01-27 1994-10-18 Dolby Laboratories Licensing Corporation Encoding and decoding using specially designed pairs of analysis and synthesis windows
US5479562A (en) * 1989-01-27 1995-12-26 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding audio information
US5042069A (en) * 1989-04-18 1991-08-20 Pacific Communications Sciences, Inc. Methods and apparatus for reconstructing non-quantized adaptively transformed voice signals
US5185800A (en) * 1989-10-13 1993-02-09 Centre National D'etudes Des Telecommunications Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion
CN1062963C (zh) * 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
JP2861238B2 (ja) * 1990-04-20 1999-02-24 ソニー株式会社 ディジタル信号符号化方法
US5388181A (en) * 1990-05-29 1995-02-07 Anderson; David J. Digital audio compression system
US5583962A (en) * 1991-01-08 1996-12-10 Dolby Laboratories Licensing Corporation Encoder/decoder for multidimensional sound fields
KR100312664B1 (ko) * 1991-03-29 2002-12-26 소니 가부시끼 가이샤 디지탈신호부호화방법
FR2678103B1 (fr) * 1991-06-18 1996-10-25 Sextant Avionique Procede de synthese vocale.
JPH0514538A (ja) * 1991-06-27 1993-01-22 Toshiba Corp 画像情報送信システム
JP3178026B2 (ja) * 1991-08-23 2001-06-18 ソニー株式会社 ディジタル信号符号化装置及び復号化装置
JPH0573093A (ja) * 1991-09-17 1993-03-26 Nippon Telegr & Teleph Corp <Ntt> 信号特徴点の抽出方法
DE4134420C1 (ko) * 1991-10-17 1992-12-03 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
JPH05216496A (ja) * 1992-02-06 1993-08-27 Matsushita Electric Ind Co Ltd 帯域分割フィルタ
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
US5400409A (en) * 1992-12-23 1995-03-21 Daimler-Benz Ag Noise-reduction method for noise-affected voice channels
WO1994019791A1 (en) * 1993-02-18 1994-09-01 Aware, Inc. Improved filter for use in audio compression and decompression systems
US5451954A (en) * 1993-08-04 1995-09-19 Dolby Laboratories Licensing Corporation Quantization noise suppression for encoder/decoder system

Also Published As

Publication number Publication date
ATE182025T1 (de) 1999-07-15
DE69603166T2 (de) 2000-02-24
JPH11503240A (ja) 1999-03-23
DE69603166D1 (de) 1999-08-12
EP0818037A1 (en) 1998-01-14
JP4242450B2 (ja) 2009-03-25
EP0818037B1 (en) 1999-07-07
US5727119A (en) 1998-03-10
CA2213348C (en) 2006-07-11
AU5366996A (en) 1996-10-16
CA2213348A1 (en) 1996-10-03
DK0818037T3 (da) 1999-12-13
WO1996030894A1 (en) 1996-10-03
AU696442B2 (en) 1998-09-10
ES2133956T3 (es) 1999-09-16

Similar Documents

Publication Publication Date Title
KR100378128B1 (ko)
Chan Wavelet basics
Mulgrew et al. Digital signal processing: concepts and applications
JP4473913B2 (ja) スペクトル／変調スペクトル域表現における変形による情報信号処理
WO1998057436A2 (en) Source coding enhancement using spectral-band replication
Laroche et al. New phase-vocoder techniques are real-time pitch shifting, chorusing, harmonizing, and other exotic audio modifications
JPS6345933A (ja) 秘話装置
Ferreira Accurate estimation in the ODFT domain of the frequency, phase and magnitude of stationary sinusoids
Campanella et al. Digital sequency decomposition of voice signals
CN103119648A (zh) 用于音频编码系统中的去相关和其他应用的相移滤波的有效实现方式
Laine et al. An orthogonal set of frequency and amplitude modulated (FAM) functions for variable resolution signal analysis
Bernardini et al. Arbitrary tilings of the time-frequency plane using local bases
Polotti et al. Fractal additive synthesis via harmonic-band wavelets
Xiong et al. A nonuniform modulated complex lapped transform
Polotti et al. Analysis and Synthesis of Pseudo-Periodic-Like Noise by Means of Wavelets with Applications to Digital Audio
Nelson Invertible time-frequency surfaces
DK0827647T3 (da) Analyse/syntesefiltreringssystem med effektiv ulige stablet enkeltsidebånds-filterbank, der anvender tidsdomæne aliasing udbalancering
Kannan et al. Performance Comparison of Various Noisy Audio Signals Analysis Using Different Sampling Rates
Qian et al. Time-frequency distribution series
Doser et al. Time/frequency techniques for signal feature detection
Nayebi et al. Low Delay Coding of Speech and Audio Using Nonuniform Band Filter Banks
Schuller Time-varying filter banks with low delay for audio coding
PLOTKIN Signal-controlled tim-series modeling based on arma blocks, and separation of superimposed, overlapping spectra signals
Agerkvist Time-frequency analysis with temporal and spectral resolution as the human auditory system
Evangelista Redressing Warped Wavelets and Other Similar Warped Time-Something Representations

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130308

Year of fee payment: 11

FPAY Annual fee payment

Payment date: 20140310

Year of fee payment: 12

FPAY Annual fee payment

Payment date: 20150306

Year of fee payment: 13

FPAY Annual fee payment

Payment date: 20160308

Year of fee payment: 14

EXPY Expiration of term