DE602004019928D1 - Audiocodierung mit niedriger bitrate - Google Patents

Audiocodierung mit niedriger bitrate

Info

Publication number
DE602004019928D1
DE602004019928D1 DE602004019928T DE602004019928T DE602004019928D1 DE 602004019928 D1 DE602004019928 D1 DE 602004019928D1 DE 602004019928 T DE602004019928 T DE 602004019928T DE 602004019928 T DE602004019928 T DE 602004019928T DE 602004019928 D1 DE602004019928 D1 DE 602004019928D1
Authority
DE
Germany
Prior art keywords
quantised
phase
frequency
frequencies
quantisation
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE602004019928T
Other languages
English (en)
Inventor
Andreas J Gerrits
Brinker Albertus C Den
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602004019928D1 publication Critical patent/DE602004019928D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G10L19/02—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
    • 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
    • G10L19/093—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using sinusoidal excitation models

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE602004019928T 2003-07-18 2004-07-08 Audiocodierung mit niedriger bitrate Active DE602004019928D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03102225 2003-07-18
PCT/IB2004/051172 WO2005008628A1 (en) 2003-07-18 2004-07-08 Low bit-rate audio encoding

Publications (1)

Publication Number Publication Date
DE602004019928D1 true DE602004019928D1 (de) 2009-04-23

Family

ID=34072659

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004019928T Active DE602004019928D1 (de) 2003-07-18 2004-07-08 Audiocodierung mit niedriger bitrate

Country Status (11)

Country Link
US (1) US7640156B2 (de)
EP (1) EP1649453B1 (de)
JP (1) JP4782006B2 (de)
KR (1) KR101058064B1 (de)
CN (1) CN1826634B (de)
AT (1) ATE425533T1 (de)
BR (1) BRPI0412717A (de)
DE (1) DE602004019928D1 (de)
ES (1) ES2322264T3 (de)
RU (1) RU2368018C2 (de)
WO (1) WO2005008628A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
EP1851760B1 (de) 2005-02-10 2015-10-07 Koninklijke Philips N.V. Tonsynthese
DE102006022346B4 (de) * 2006-05-12 2008-02-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalcodierung
KR20080073925A (ko) * 2007-02-07 2008-08-12 삼성전자주식회사 파라메트릭 부호화된 오디오 신호를 복호화하는 방법 및장치
KR101149448B1 (ko) * 2007-02-12 2012-05-25 삼성전자주식회사 오디오 부호화 및 복호화 장치와 그 방법
KR101317269B1 (ko) * 2007-06-07 2013-10-14 삼성전자주식회사 정현파 오디오 코딩 방법 및 장치, 그리고 정현파 오디오디코딩 방법 및 장치
KR20090008611A (ko) * 2007-07-18 2009-01-22 삼성전자주식회사 오디오 신호의 인코딩 방법 및 장치
KR101410229B1 (ko) * 2007-08-20 2014-06-23 삼성전자주식회사 오디오 신호의 연속 정현파 신호 정보를 인코딩하는 방법및 장치와 디코딩 방법 및 장치
KR101425355B1 (ko) * 2007-09-05 2014-08-06 삼성전자주식회사 파라메트릭 오디오 부호화 및 복호화 장치와 그 방법
WO2009059633A1 (en) * 2007-11-06 2009-05-14 Nokia Corporation An encoder
KR101325760B1 (ko) * 2009-12-17 2013-11-08 한국전자통신연구원 오디오/음성 신호 처리 장치의 복부호화 장치 및 방법
US9659567B2 (en) * 2013-01-08 2017-05-23 Dolby International Ab Model based prediction in a critically sampled filterbank
KR20160087827A (ko) * 2013-11-22 2016-07-22 퀄컴 인코포레이티드 고대역 코딩에서의 선택적 위상 보상
PL232466B1 (pl) 2015-01-19 2019-06-28 Zylia Spolka Z Ograniczona Odpowiedzialnoscia Sposób kodowania, sposób dekodowania, koder oraz dekoder sygnału audio
CN107924683B (zh) * 2015-10-15 2021-03-30 华为技术有限公司 正弦编码和解码的方法和装置
EP3483886A1 (de) * 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Auswahl einer grundfrequenz
US10847172B2 (en) 2018-12-17 2020-11-24 Microsoft Technology Licensing, Llc Phase quantization in a speech encoder
US10957331B2 (en) 2018-12-17 2021-03-23 Microsoft Technology Licensing, Llc Phase reconstruction in a speech decoder

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885790A (en) * 1985-03-18 1989-12-05 Massachusetts Institute Of Technology Processing of acoustic waveforms
JPH11224099A (ja) * 1998-02-06 1999-08-17 Sony Corp 位相量子化装置及び方法
US7272556B1 (en) * 1998-09-23 2007-09-18 Lucent Technologies Inc. Scalable and embedded codec for speech and audio signals
EP1095370A1 (de) * 1999-04-05 2001-05-02 Hughes Electronics Corporation Spektrale phasenmodellierung von prototyp-wellenformkomponenten für ein im frequenubereich arbeitendes interpolatives sprach-codec-system
KR100780561B1 (ko) 2000-03-15 2007-11-29 코닌클리케 필립스 일렉트로닉스 엔.브이. 라게르 함수를 이용한 오디오 코딩 장치 및 방법
KR100363259B1 (ko) 2000-05-16 2002-11-30 삼성전자 주식회사 인지 특성 가중 함수를 이용한 음성신호의 위상 양자화장치 및 방법
KR100861884B1 (ko) * 2000-06-20 2008-10-09 코닌클리케 필립스 일렉트로닉스 엔.브이. 정현파 코딩 방법 및 장치
KR20020084199A (ko) * 2001-01-16 2002-11-04 코닌클리케 필립스 일렉트로닉스 엔.브이. 파라메트릭 엔코딩에서 신호 성분들의 링킹
CN1293534C (zh) * 2001-01-16 2007-01-03 皇家菲利浦电子有限公司 参数编码器和参数编码方法及参数译码器和参数译码方法
CN1240048C (zh) * 2001-04-18 2006-02-01 皇家菲利浦电子有限公司 音频编码
JP4359499B2 (ja) * 2001-06-08 2009-11-04 アイピージー エレクトロニクス ５０３ リミテッド オーディオ信号の編集
JP2006526161A (ja) * 2003-05-27 2006-11-16 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 オーディオ符号化

Also Published As

Publication number Publication date
ES2322264T3 (es) 2009-06-18
BRPI0412717A (pt) 2006-09-26
EP1649453B1 (de) 2009-03-11
KR101058064B1 (ko) 2011-08-22
JP2007519027A (ja) 2007-07-12
JP4782006B2 (ja) 2011-09-28
CN1826634B (zh) 2010-12-01
US7640156B2 (en) 2009-12-29
RU2006105017A (ru) 2006-06-27
CN1826634A (zh) 2006-08-30
RU2368018C2 (ru) 2009-09-20
ATE425533T1 (de) 2009-03-15
KR20060037375A (ko) 2006-05-03
EP1649453A1 (de) 2006-04-26
WO2005008628A1 (en) 2005-01-27
US20070112560A1 (en) 2007-05-17

Similar Documents

Publication Publication Date Title
DE602004019928D1 (de) Audiocodierung mit niedriger bitrate
BR0305710A (pt) Aparelho de decodificação de áudio e método de decodificação de áudio
DE60306512D1 (de) Parametrische beschreibung von mehrkanal-audio
TW200737128A (en) Systems, methods, and apparatus for detection of tonal components
DE602005005948D1 (de) Audiosignal-verbesserung
AR078704A1 (es) Codificador de senal de audio, decodificador de senal de audio, metodo para codificar o decodificar una senal de audio utilizando una cancelacion de ltipo aliasing
WO2008016935A3 (en) Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
DE60204038D1 (de) Vorrichtung zum codieren bzw. decodieren eines audiosignals
ATE511179T1 (de) Hierarchischen audio-kodierung/-dekodierung
ATE474310T1 (de) Mehrkanalige audio-erweiterung
DE60328402D1 (de) Tonsignalerzeugung
TW200623027A (en) Processing of encoded signals
AU2003202275A1 (en) Detecting bridged taps by frequency domain reflectrometry-based
WO2005024783A8 (en) Low bit-rate audio encoding
WO2007011454A3 (en) Agc circuit for the reduction of harmonics in the drive signal
DE602004010839D1 (de) Frequenzagiler erreger
DE60330850D1 (de) Digitale Frequenzsynthese
ATE477686T1 (de) Erzeuger von akustischen signalen für personen mit tinnitusstörungen
EP1668534A4 (de) Verfahren zum transformieren eines digitalen signals aus der zeitdomäne in die frequenzdomäne und umgekehrt
DE60312060D1 (de) Signalvorverarbeitung der überlagerten Signale in einem digitalen Modulationsschema mit überlagerten Signalen zur Verwendung von bestehenden Empfängern
DE60225498D1 (de) PLL-Frequenzsynthesizer
DK1828788T3 (da) Filter til variation af dynamisk afskæringsfrekvens
ATE303646T1 (de) Sinusoidale kodierung
NO20020294D0 (no) Identifikasjon av frekvensbånd for å beregne faseforskyvning i en talekoder
FR2847844B1 (fr) Appareil pour le tranchage de materiaux en plaque

Legal Events

Date Code Title Description
8364 No opposition during term of opposition