NO20090400L - Audiokoder, audiodekoder og audioprosessor med en dynamisk, variabel forvrengningskarakteristikk - Google Patents
Audiokoder, audiodekoder og audioprosessor med en dynamisk, variabel forvrengningskarakteristikkInfo
- Publication number
- NO20090400L NO20090400L NO20090400A NO20090400A NO20090400L NO 20090400 L NO20090400 L NO 20090400L NO 20090400 A NO20090400 A NO 20090400A NO 20090400 A NO20090400 A NO 20090400A NO 20090400 L NO20090400 L NO 20090400L
- Authority
- NO
- Norway
- Prior art keywords
- audio
- filter
- distortion characteristic
- signal
- processor
- Prior art date
Links
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/26—Pre-filtering or post-filtering
- G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
-
- 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
Abstract
En audiokoder, en audiodekoder eller en audioprosessor omfatter et filter (12) for å generere et filtrert audiosignal, idet filteret har en variabel forvrengningskarakteristikk som er regulerbar som svar på et tidsvarierende styresignal (16), idet styresignalet indikerer en liten eller ingen forvrengningskarakteristikk eller en relativt høy forvrengningskarakteristikk. Videre er en styreenhet (18) tilkoplet for å tilveiebringe det tidsvarierende styresignal som avhenger av audiosignalet. Det filtrerte audiosignal kan innføres i en kodingsprosessor (22) med forskjellige kodingsalgoritmer, hvorav én er en kodingsalgoritme tilpasset et spesifikt signalmønster. Alternativt er filteret et postfilter som mottar et dekodet audiosignal.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/428,297 US7873511B2 (en) | 2006-06-30 | 2006-06-30 | Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic |
EP06013604A EP1873754B1 (en) | 2006-06-30 | 2006-06-30 | Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic |
PCT/EP2007/004401 WO2008000316A1 (en) | 2006-06-30 | 2007-05-16 | Audio encoder, audio decoder and audio processor having a dynamically variable harping characteristic |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20090400L true NO20090400L (no) | 2009-01-27 |
NO340436B1 NO340436B1 (no) | 2017-04-24 |
Family
ID=38509999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20090400A NO340436B1 (no) | 2006-06-30 | 2009-01-27 | Audiokoder, audiodekoder og audioprosessor med en dynamisk, variabel forvrengningskarakteristikk |
Country Status (17)
Country | Link |
---|---|
EP (1) | EP2038879B1 (no) |
JP (1) | JP5205373B2 (no) |
KR (1) | KR101145578B1 (no) |
AR (1) | AR061696A1 (no) |
AU (2) | AU2007264175B2 (no) |
BR (1) | BRPI0712625B1 (no) |
CA (1) | CA2656423C (no) |
ES (1) | ES2559307T3 (no) |
HK (1) | HK1128811A1 (no) |
IL (1) | IL195983A (no) |
MX (1) | MX2008016163A (no) |
MY (1) | MY142675A (no) |
NO (1) | NO340436B1 (no) |
PL (1) | PL2038879T3 (no) |
RU (1) | RU2418322C2 (no) |
TW (1) | TWI348683B (no) |
WO (1) | WO2008000316A1 (no) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY154452A (en) | 2008-07-11 | 2015-06-15 | Fraunhofer Ges Forschung | An apparatus and a method for decoding an encoded audio signal |
EP2144231A1 (en) * | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Low bitrate audio encoding/decoding scheme with common preprocessing |
ATE539433T1 (de) | 2008-07-11 | 2012-01-15 | Fraunhofer Ges Forschung | Bereitstellen eines zeitverzerrungsaktivierungssignals und codierung eines audiosignals damit |
FR2949582B1 (fr) * | 2009-09-02 | 2011-08-26 | Alcatel Lucent | Procede pour rendre un signal musical compatible avec un codec a transmission discontinue ; et dispositif pour la mise en ?uvre de ce procede |
JP5992427B2 (ja) * | 2010-11-10 | 2016-09-14 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 信号におけるピッチおよび/または基本周波数に関するパターンを推定する方法および装置 |
MY158977A (en) * | 2010-12-03 | 2016-11-30 | ERICSSON TELEFON AB L M (publ) | Source signal adaptive frame aggregation |
TWI800092B (zh) * | 2010-12-03 | 2023-04-21 | 美商杜比實驗室特許公司 | 音頻解碼裝置、音頻解碼方法及音頻編碼方法 |
WO2013183928A1 (ko) * | 2012-06-04 | 2013-12-12 | 삼성전자 주식회사 | 오디오 부호화방법 및 장치, 오디오 복호화방법 및 장치, 및 이를 채용하는 멀티미디어 기기 |
TWI517142B (zh) * | 2012-07-02 | 2016-01-11 | Sony Corp | Audio decoding apparatus and method, audio coding apparatus and method, and program |
US9548056B2 (en) | 2012-12-19 | 2017-01-17 | Dolby International Ab | Signal adaptive FIR/IIR predictors for minimizing entropy |
EP2992605B1 (en) * | 2013-04-29 | 2017-06-07 | Dolby Laboratories Licensing Corporation | Frequency band compression with dynamic thresholds |
CN104934034B (zh) | 2014-03-19 | 2016-11-16 | 华为技术有限公司 | 用于信号处理的方法和装置 |
EP2980795A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor |
EP2980794A1 (en) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder and decoder using a frequency domain processor and a time domain processor |
RU2628459C1 (ru) * | 2016-10-13 | 2017-08-17 | Общество с ограниченной ответственностью "Силовая электроника" | Способ декодирования LDPC-кодов и устройство для его осуществления |
US10694298B2 (en) * | 2018-10-22 | 2020-06-23 | Zeev Neumeier | Hearing aid |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4132109B2 (ja) * | 1995-10-26 | 2008-08-13 | ソニー株式会社 | 音声信号の再生方法及び装置、並びに音声復号化方法及び装置、並びに音声合成方法及び装置 |
US6456964B2 (en) * | 1998-12-21 | 2002-09-24 | Qualcomm, Incorporated | Encoding of periodic speech using prototype waveforms |
JP2000322095A (ja) * | 1999-05-13 | 2000-11-24 | Mitsubishi Electric Corp | 音声復号装置 |
US7110953B1 (en) * | 2000-06-02 | 2006-09-19 | Agere Systems Inc. | Perceptual coding of audio signals using separated irrelevancy reduction and redundancy reduction |
CA2457988A1 (en) * | 2004-02-18 | 2005-08-18 | Voiceage Corporation | Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization |
US7587254B2 (en) | 2004-04-23 | 2009-09-08 | Nokia Corporation | Dynamic range control and equalization of digital audio using warped processing |
-
2007
- 2007-05-16 AU AU2007264175A patent/AU2007264175B2/en active Active
- 2007-05-16 RU RU2009103010/09A patent/RU2418322C2/ru active
- 2007-05-16 MX MX2008016163A patent/MX2008016163A/es active IP Right Grant
- 2007-05-16 CA CA2656423A patent/CA2656423C/en active Active
- 2007-05-16 PL PL07725316T patent/PL2038879T3/pl unknown
- 2007-05-16 JP JP2009516921A patent/JP5205373B2/ja active Active
- 2007-05-16 WO PCT/EP2007/004401 patent/WO2008000316A1/en active Application Filing
- 2007-05-16 BR BRPI0712625-5A patent/BRPI0712625B1/pt active IP Right Grant
- 2007-05-16 KR KR1020087032110A patent/KR101145578B1/ko active IP Right Grant
- 2007-05-16 ES ES07725316.9T patent/ES2559307T3/es active Active
- 2007-05-16 MY MYPI20085310A patent/MY142675A/en unknown
- 2007-05-16 EP EP07725316.9A patent/EP2038879B1/en active Active
- 2007-06-23 TW TW096122715A patent/TWI348683B/zh active
- 2007-06-25 AR ARP070102797A patent/AR061696A1/es active IP Right Grant
-
2008
- 2008-12-16 IL IL195983A patent/IL195983A/en active IP Right Grant
-
2009
- 2009-01-27 NO NO20090400A patent/NO340436B1/no unknown
- 2009-09-11 HK HK09108366.0A patent/HK1128811A1/zh unknown
-
2011
- 2011-02-04 AU AU2011200461A patent/AU2011200461B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CA2656423C (en) | 2013-12-17 |
IL195983A0 (en) | 2009-09-01 |
HK1128811A1 (zh) | 2009-11-06 |
AU2011200461B2 (en) | 2011-11-10 |
AU2011200461A1 (en) | 2011-02-24 |
KR101145578B1 (ko) | 2012-05-16 |
MX2008016163A (es) | 2009-02-04 |
IL195983A (en) | 2012-01-31 |
TWI348683B (en) | 2011-09-11 |
CA2656423A1 (en) | 2008-01-03 |
NO340436B1 (no) | 2017-04-24 |
ES2559307T3 (es) | 2016-02-11 |
AU2007264175B2 (en) | 2011-03-03 |
WO2008000316A8 (en) | 2009-02-26 |
JP2009541802A (ja) | 2009-11-26 |
RU2009103010A (ru) | 2010-08-10 |
MY142675A (en) | 2010-12-15 |
EP2038879B1 (en) | 2015-11-04 |
BRPI0712625A2 (pt) | 2012-10-16 |
EP2038879A1 (en) | 2009-03-25 |
JP5205373B2 (ja) | 2013-06-05 |
BRPI0712625B1 (pt) | 2023-10-10 |
PL2038879T3 (pl) | 2016-04-29 |
AU2007264175A1 (en) | 2008-01-03 |
AR061696A1 (es) | 2008-09-17 |
KR20090025304A (ko) | 2009-03-10 |
RU2418322C2 (ru) | 2011-05-10 |
WO2008000316A1 (en) | 2008-01-03 |
TW200809771A (en) | 2008-02-16 |
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