SG150572A1 - Coding model selection - Google Patents

Coding model selection

Info

Publication number
SG150572A1
SG150572A1 SG200901538-9A SG2009015389A SG150572A1 SG 150572 A1 SG150572 A1 SG 150572A1 SG 2009015389 A SG2009015389 A SG 2009015389A SG 150572 A1 SG150572 A1 SG 150572A1
Authority
SG
Singapore
Prior art keywords
excitation
block
audio signal
frames
ltp
Prior art date
Application number
SG200901538-9A
Other languages
English (en)
Inventor
Jari Maekinen
Original Assignee
Nokia Corp
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 Nokia Corp filed Critical Nokia Corp
Publication of SG150572A1 publication Critical patent/SG150572A1/en

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
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • 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
    • G10L19/04—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 predictive techniques
    • 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
    • G10L19/04—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 predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (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)
SG200901538-9A 2004-02-23 2005-02-22 Coding model selection SG150572A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20045052A FI118835B (fi) 2004-02-23 2004-02-23 Koodausmallin valinta

Publications (1)

Publication Number Publication Date
SG150572A1 true SG150572A1 (en) 2009-03-30

Family

ID=31725818

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200901538-9A SG150572A1 (en) 2004-02-23 2005-02-22 Coding model selection

Country Status (15)

Country Link
US (1) US7747430B2 (fi)
EP (1) EP1719120B1 (fi)
JP (1) JP2007523388A (fi)
KR (2) KR20080083718A (fi)
CN (1) CN1922659B (fi)
AU (1) AU2005215745A1 (fi)
BR (1) BRPI0508309A (fi)
CA (1) CA2555768A1 (fi)
FI (1) FI118835B (fi)
HK (1) HK1099960A1 (fi)
RU (1) RU2006129871A (fi)
SG (1) SG150572A1 (fi)
TW (1) TW200534599A (fi)
WO (1) WO2005081231A1 (fi)
ZA (1) ZA200606714B (fi)

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DE102008022125A1 (de) * 2008-05-05 2009-11-19 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Klassifikation von schallerzeugenden Prozessen
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WO2010040522A2 (en) * 2008-10-08 2010-04-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Multi-resolution switched audio encoding/decoding scheme
CN101615395B (zh) * 2008-12-31 2011-01-12 华为技术有限公司 信号编码、解码方法及装置、系统
CN101609677B (zh) * 2009-03-13 2012-01-04 华为技术有限公司 一种预处理方法、装置及编码设备
CN101615910B (zh) * 2009-05-31 2010-12-22 华为技术有限公司 压缩编码的方法、装置和设备以及压缩解码方法
US9269366B2 (en) * 2009-08-03 2016-02-23 Broadcom Corporation Hybrid instantaneous/differential pitch period coding
PL2473995T3 (pl) * 2009-10-20 2015-06-30 Fraunhofer Ges Forschung Koder sygnału audio, dekoder sygnału audio, sposób dostarczania zakodowanej reprezentacji treści audio, sposób dostarczania dekodowanej reprezentacji treści audio oraz program komputerowy do wykorzystania w zastosowaniach z małym opóźnieniem
WO2012000882A1 (en) 2010-07-02 2012-01-05 Dolby International Ab Selective bass post filter
PL4120248T3 (pl) * 2010-07-08 2024-05-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dekoder wykorzystujący kasowanie aliasingu w przód
JP5625126B2 (ja) 2011-02-14 2014-11-12 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン スペクトル領域ノイズ整形を使用する線形予測ベースコーディングスキーム
BR112013020482B1 (pt) 2011-02-14 2021-02-23 Fraunhofer Ges Forschung aparelho e método para processar um sinal de áudio decodificado em um domínio espectral
MX2013009305A (es) * 2011-02-14 2013-10-03 Fraunhofer Ges Forschung Generacion de ruido en codecs de audio.
SG185519A1 (en) 2011-02-14 2012-12-28 Fraunhofer Ges Forschung Information signal representation using lapped transform
SG192734A1 (en) 2011-02-14 2013-09-30 Fraunhofer Ges Forschung Apparatus and method for error concealment in low-delay unified speech and audio coding (usac)
JP5800915B2 (ja) 2011-02-14 2015-10-28 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ オーディオ信号のトラックのパルス位置の符号化および復号化
EP2676264B1 (en) 2011-02-14 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder estimating background noise during active phases
MY159444A (en) 2011-02-14 2017-01-13 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E V Encoding and decoding of pulse positions of tracks of an audio signal
ES2623291T3 (es) 2011-02-14 2017-07-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificación de una porción de una señal de audio utilizando una detección de transitorios y un resultado de calidad
MY160265A (en) 2011-02-14 2017-02-28 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E V Apparatus and Method for Encoding and Decoding an Audio Signal Using an Aligned Look-Ahead Portion
PL2951820T3 (pl) 2013-01-29 2017-06-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Urządzenie i sposób wyboru jednego spośród pierwszego algorytmu kodowania i drugiego algorytmu kodowania
CN105336338B (zh) 2014-06-24 2017-04-12 华为技术有限公司 音频编码方法和装置
ES2614358T3 (es) 2014-07-28 2017-05-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selección de uno de un primer algoritmo de codificación y un segundo algoritmo de codificación usando reducción de armónicos

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FI118835B (fi) 2004-02-23 2008-03-31 Nokia Corp Koodausmallin valinta

Also Published As

Publication number Publication date
AU2005215745A1 (en) 2005-09-01
EP1719120A1 (en) 2006-11-08
FI118835B (fi) 2008-03-31
ZA200606714B (en) 2007-11-28
HK1099960A1 (en) 2007-08-31
CN1922659A (zh) 2007-02-28
KR20070015155A (ko) 2007-02-01
CA2555768A1 (en) 2005-09-01
KR20080083718A (ko) 2008-09-18
RU2006129871A (ru) 2008-03-27
JP2007523388A (ja) 2007-08-16
FI20045052A (fi) 2005-08-24
BRPI0508309A (pt) 2007-07-24
FI20045052A0 (fi) 2004-02-23
EP1719120B1 (en) 2019-06-19
CN1922659B (zh) 2010-05-26
TW200534599A (en) 2005-10-16
US20050192797A1 (en) 2005-09-01
KR100879976B1 (ko) 2009-01-23
WO2005081231A1 (en) 2005-09-01
US7747430B2 (en) 2010-06-29

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