EA200702651A1 - Аудиоданные прямого цифрового потока с минимальной потребностью в памяти - Google Patents

Аудиоданные прямого цифрового потока с минимальной потребностью в памяти

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Publication number
EA200702651A1
EA200702651A1 EA200702651A EA200702651A EA200702651A1 EA 200702651 A1 EA200702651 A1 EA 200702651A1 EA 200702651 A EA200702651 A EA 200702651A EA 200702651 A EA200702651 A EA 200702651A EA 200702651 A1 EA200702651 A1 EA 200702651A1
Authority
EA
Eurasian Patent Office
Prior art keywords
signal
dsd
pcm
sigma
upsampled
Prior art date
Application number
EA200702651A
Other languages
English (en)
Inventor
Эрвин Янссен
Дерк Рефман
Original Assignee
Конинклейке Филипс Электроникс Н.В.
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 Конинклейке Филипс Электроникс Н.В. filed Critical Конинклейке Филипс Электроникс Н.В.
Publication of EA200702651A1 publication Critical patent/EA200702651A1/ru

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    • 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
    • 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
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3006—Compensating for, or preventing of, undesired influence of physical 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10481—Improvement or modification of read or write signals optimisation methods
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1262—Formatting, e.g. arrangement of data block or words on the record carriers with more than one format/standard, e.g. conversion from CD-audio format to R-DAT format
    • 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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G11B2020/00014—Time or data compression or expansion the compressed signal being an audio signal
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G11B2020/00014—Time or data compression or expansion the compressed signal being an audio signal
    • G11B2020/00065—Sigma-delta audio encoding
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording
    • G11B2020/10546—Audio or video recording specifically adapted for audio data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1288—Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2579—HD-DVDs [high definition DVDs]; AODs [advanced optical discs]
    • 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
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3015—Structural details of digital delta-sigma modulators
    • H03M7/302—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M7/3024—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M7/3028—Structural details of digital delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only the quantiser being a single bit one

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Схема аудиокодирования, предоставляющая расширение РСМ-сигнала в DSD-сигнал без потерь для форматов оптических дисков следующего поколения. Способ кодирования входного DSD-сигнала включает в себя передискретизацию соответствующего РСМ-сигнала с повышением частоты дискретизации до частоты дискретизации DSD. Затем формируется набор параметров контурного фильтра для контура формирования шума сигма-дельта модулятора либо с помощью произвольного начального условия сигма-дельта модулятора, либо с помощью включения параметров синхронизации. Это позволяет декодеру повторно сформировать практически идеальный сигнал, но при этом по-прежнему требуется корректирующий сигнал, чтобы иметь возможность повторно сформировать идентично по битам входной DSD-сигнал. Следовательно, корректирующий сигнал формируется на основе разности между сигма-дельта модулированной версией РСМ-сигнала, передискретизованного с повышением частоты дискретизации и входным DSD-сигналом, при этом сигма-дельта модулированная версия РСМ-сигнала, передискретизованного с повышением частоты дискретизации, получается с помощью набора параметров контурного фильтра. Корректирующий сигнал может быть приспособлен для применения к РСМ-сигналу с низким битрейтом, к РСМ-сигналу, передискретизованному с повышением частоты дискретизации, или к выходному битовому потоку. В завершение, формируется битовый поток расширения, куда включена кодированная версия набора параметров контурного фильтра и кодированная версия корректирующего сигнала. Декодер может воспроизводить исходный DSD-сигнал на основе уже доступного РСМ-сигнала и описанного битового потока
EA200702651A 2005-05-30 2006-05-16 Аудиоданные прямого цифрового потока с минимальной потребностью в памяти EA200702651A1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05104612 2005-05-30
PCT/IB2006/051537 WO2006129215A2 (en) 2005-05-30 2006-05-16 Direct stream digital audio with minimal storage requirement

Publications (1)

Publication Number Publication Date
EA200702651A1 true EA200702651A1 (ru) 2008-04-28

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Country Status (9)

Country Link
US (1) US20090287493A1 (ru)
EP (1) EP1891639A2 (ru)
JP (1) JP2008546014A (ru)
KR (1) KR20080017392A (ru)
CN (1) CN101189678A (ru)
BR (1) BRPI0610905A2 (ru)
EA (1) EA200702651A1 (ru)
TW (1) TW200705394A (ru)
WO (1) WO2006129215A2 (ru)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8326075B2 (en) * 2008-09-11 2012-12-04 Google Inc. System and method for video encoding using adaptive loop filter
US8781004B1 (en) 2011-04-07 2014-07-15 Google Inc. System and method for encoding video using variable loop filter
US8780971B1 (en) 2011-04-07 2014-07-15 Google, Inc. System and method of encoding using selectable loop filters
US8780996B2 (en) 2011-04-07 2014-07-15 Google, Inc. System and method for encoding and decoding video data
US8885706B2 (en) 2011-09-16 2014-11-11 Google Inc. Apparatus and methodology for a video codec system with noise reduction capability
US9131073B1 (en) 2012-03-02 2015-09-08 Google Inc. Motion estimation aided noise reduction
US9344729B1 (en) 2012-07-11 2016-05-17 Google Inc. Selective prediction signal filtering
US10102613B2 (en) 2014-09-25 2018-10-16 Google Llc Frequency-domain denoising
US10735794B2 (en) 2016-03-28 2020-08-04 Sony Corporation Information processing device, information processing method, and information processing system
CN105869647B (zh) * 2016-05-05 2019-10-08 西安睿芯微电子有限公司 一种智能手机原生dsd音频解码方法、系统及智能手机
WO2018035046A1 (en) 2016-08-15 2018-02-22 President And Fellows Of Harvard College Treating infections using idsd from proteus mirabilis
CN106504759B (zh) * 2016-11-04 2019-07-26 维沃移动通信有限公司 一种混音处理方法及终端设备
US10074378B2 (en) * 2016-12-09 2018-09-11 Cirrus Logic, Inc. Data encoding detection
JP2018129663A (ja) * 2017-02-08 2018-08-16 旭化成エレクトロニクス株式会社 信号処理装置
JP7099447B2 (ja) * 2017-04-26 2022-07-12 ソニーグループ株式会社 信号処理装置、信号処理方法、およびプログラム
JP7140119B2 (ja) * 2017-07-05 2022-09-21 ソニーグループ株式会社 信号処理装置、信号処理方法、および、プログラム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09153806A (ja) * 1995-11-29 1997-06-10 Sony Corp 信号処理装置
JP3371672B2 (ja) * 1996-03-22 2003-01-27 ソニー株式会社 マスタリング装置
US6160953A (en) * 1997-04-21 2000-12-12 Victor Company Of Japan, Ltd. DVD-compatible optical recording disk conveying audio signals encoded both as PCM data and as single bit stream data generated by sigma-delta modulation, and encoder apparatus and decoder apparatus for same
CN1098518C (zh) * 1997-07-11 2003-01-08 三星电子株式会社 与数字通用盘视频标准兼容的数字音频处理系统
US6204793B1 (en) * 1999-04-15 2001-03-20 C-Media Electronics Inc. Sigma-Delta CODEC system
JP4454109B2 (ja) * 2000-06-14 2010-04-21 日本テキサス・インスツルメンツ株式会社 パルス密度変調信号（ｐｄｍ）のデジタル−アナログ変換処理におけるｓｎ比改善の方法および装置
CN100337405C (zh) * 2000-08-11 2007-09-12 皇家菲利浦电子有限公司 用于同步∑△调制器的方法和装置
AU2001285936A1 (en) * 2000-09-08 2002-03-22 Koninklijke Philips Electronics N.V. Audio signal processing with adaptive noise-shaping modulation
JP2003060509A (ja) * 2001-08-10 2003-02-28 Teac Corp ディジタル信号のエラー補償装置及び方法
US6982662B2 (en) * 2003-03-06 2006-01-03 Texas Instruments Incorporated Method and apparatus for efficient conversion of signals using look-up table
US20040213350A1 (en) * 2003-04-24 2004-10-28 Frith Peter J. Interface format for PCM and DSD devices
GB2408858B (en) * 2003-12-05 2006-11-29 Wolfson Ltd Word length reduction circuit

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Publication number Publication date
US20090287493A1 (en) 2009-11-19
WO2006129215A2 (en) 2006-12-07
CN101189678A (zh) 2008-05-28
KR20080017392A (ko) 2008-02-26
TW200705394A (en) 2007-02-01
EP1891639A2 (en) 2008-02-27
WO2006129215A3 (en) 2007-04-26
JP2008546014A (ja) 2008-12-18
BRPI0610905A2 (pt) 2008-12-02

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