PL371898A1 - System kodowania fonii z wykorzystaniem właściwości dekodowanego sygnału do dopasowania syntezowanych składowych widmowych - Google Patents

System kodowania fonii z wykorzystaniem właściwości dekodowanego sygnału do dopasowania syntezowanych składowych widmowych

Info

Publication number
PL371898A1
PL371898A1 PL03371898A PL37189803A PL371898A1 PL 371898 A1 PL371898 A1 PL 371898A1 PL 03371898 A PL03371898 A PL 03371898A PL 37189803 A PL37189803 A PL 37189803A PL 371898 A1 PL371898 A1 PL 371898A1
Authority
PL
Poland
Prior art keywords
decoded signal
spectral components
coding system
audio coding
synthesized spectral
Prior art date
Application number
PL03371898A
Other languages
English (en)
Other versions
PL207861B1 (pl
Inventor
Grant Allen Davidson
Michael Mead Truman
Matthew Conrad Fellers
Mark Stuart Vinton
Original Assignee
Dolby Laboratories Licensing Corporation
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
Priority claimed from US10/174,493 external-priority patent/US7447631B2/en
Application filed by Dolby Laboratories Licensing Corporation filed Critical Dolby Laboratories Licensing Corporation
Publication of PL371898A1 publication Critical patent/PL371898A1/pl
Publication of PL207861B1 publication Critical patent/PL207861B1/pl

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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
PL371898A 2002-06-17 2003-06-09 Sposób wytwarzania kodowanych sygnałów akustycznych w telekomunikacji PL207861B1 (pl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/174,493 US7447631B2 (en) 2002-06-17 2002-06-17 Audio coding system using spectral hole filling
US10/238,047 US7337118B2 (en) 2002-06-17 2002-09-06 Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components

Publications (2)

Publication Number Publication Date
PL371898A1 true PL371898A1 (pl) 2005-07-11
PL207861B1 PL207861B1 (pl) 2011-02-28

Family

ID=29738991

Family Applications (1)

Application Number Title Priority Date Filing Date
PL371898A PL207861B1 (pl) 2002-06-17 2003-06-09 Sposób wytwarzania kodowanych sygnałów akustycznych w telekomunikacji

Country Status (10)

Country Link
US (1) US20080140405A1 (pl)
EP (1) EP1514263B1 (pl)
JP (1) JP2005530206A (pl)
CN (1) CN1310210C (pl)
AU (1) AU2003243441C1 (pl)
CA (1) CA2489443C (pl)
MX (1) MXPA04012540A (pl)
PL (1) PL207861B1 (pl)
TW (1) TWI288915B (pl)
WO (1) WO2003107329A1 (pl)

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US7555434B2 (en) 2002-07-19 2009-06-30 Nec Corporation Audio decoding device, decoding method, and program
US7774707B2 (en) * 2004-12-01 2010-08-10 Creative Technology Ltd Method and apparatus for enabling a user to amend an audio file
US8392176B2 (en) * 2006-04-10 2013-03-05 Qualcomm Incorporated Processing of excitation in audio coding and decoding
US8060363B2 (en) * 2007-02-13 2011-11-15 Nokia Corporation Audio signal encoding
US8428957B2 (en) 2007-08-24 2013-04-23 Qualcomm Incorporated Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
DK2186089T3 (en) 2007-08-27 2019-01-07 Ericsson Telefon Ab L M Method and apparatus for perceptual spectral decoding of an audio signal including filling in spectral holes
RU2621965C2 (ru) * 2008-07-11 2017-06-08 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Передатчик сигнала активации с деформацией по времени, кодер звукового сигнала, способ преобразования сигнала активации с деформацией по времени, способ кодирования звукового сигнала и компьютерные программы
MY154452A (en) 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
EP2239732A1 (en) 2009-04-09 2010-10-13 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
RU2452044C1 (ru) 2009-04-02 2012-05-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Устройство, способ и носитель с программным кодом для генерирования представления сигнала с расширенным диапазоном частот на основе представления входного сигнала с использованием сочетания гармонического расширения диапазона частот и негармонического расширения диапазона частот
CO6440537A2 (es) 2009-04-09 2012-05-15 Fraunhofer Ges Forschung Aparato y metodo para generar una señal de audio de sintesis y para codificar una señal de audio
CN101556799B (zh) 2009-05-14 2013-08-28 华为技术有限公司 一种音频解码方法和音频解码器
CN102576531B (zh) * 2009-10-12 2015-01-21 诺基亚公司 用于处理多信道音频信号的方法、设备
CA3107943C (en) 2010-01-19 2022-09-06 Dolby International Ab Improved subband block based harmonic transposition
US12002476B2 (en) 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction
US8924222B2 (en) 2010-07-30 2014-12-30 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for coding of harmonic signals
US9208792B2 (en) * 2010-08-17 2015-12-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for noise injection
EP3288033B1 (en) * 2012-02-23 2019-04-10 Dolby International AB Methods and systems for efficient recovery of high frequency audio content
JP6200034B2 (ja) * 2012-04-27 2017-09-20 株式会社Ｎｔｔドコモ 音声復号装置
US9607602B2 (en) 2013-09-06 2017-03-28 Apple Inc. ANC system with SPL-controlled output
US10090005B2 (en) * 2016-03-10 2018-10-02 Aspinity, Inc. Analog voice activity detection
CN113053351B (zh) * 2021-03-14 2024-01-30 西北工业大学 一种基于听觉感知的飞机舱内噪声合成方法

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EP0551705A3 (en) * 1992-01-15 1993-08-18 Ericsson Ge Mobile Communications Inc. Method for subbandcoding using synthetic filler signals for non transmitted subbands
JP2563719B2 (ja) * 1992-03-11 1996-12-18 技術研究組合医療福祉機器研究所 音声加工装置と補聴器
US5623577A (en) * 1993-07-16 1997-04-22 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
JPH07225598A (ja) * 1993-09-22 1995-08-22 Massachusetts Inst Of Technol <Mit> 動的に決定された臨界帯域を用いる音響コード化の方法および装置
JP3254953B2 (ja) * 1995-02-17 2002-02-12 日本ビクター株式会社 音声高能率符号化装置
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SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
SE9903553D0 (sv) * 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
SE0001926D0 (sv) * 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation/folding in the subband domain
JP3538122B2 (ja) * 2000-06-14 2004-06-14 株式会社ケンウッド 周波数補間装置、周波数補間方法及び記録媒体

Also Published As

Publication number Publication date
EP1514263A1 (en) 2005-03-16
MXPA04012540A (es) 2005-04-28
TW200400487A (en) 2004-01-01
AU2003243441C1 (en) 2009-07-30
WO2003107329A1 (en) 2003-12-24
JP2005530206A (ja) 2005-10-06
AU2003243441A1 (en) 2003-12-31
CN1310210C (zh) 2007-04-11
US20080140405A1 (en) 2008-06-12
CA2489443A1 (en) 2003-12-24
CA2489443C (en) 2012-04-10
TWI288915B (en) 2007-10-21
PL207861B1 (pl) 2011-02-28
AU2003243441B2 (en) 2008-12-11
CN1662960A (zh) 2005-08-31
EP1514263B1 (en) 2010-06-02

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