AU2001285936A1 - Audio signal processing with adaptive noise-shaping modulation - Google Patents

Audio signal processing with adaptive noise-shaping modulation

Info

Publication number
AU2001285936A1
AU2001285936A1 AU2001285936A AU8593601A AU2001285936A1 AU 2001285936 A1 AU2001285936 A1 AU 2001285936A1 AU 2001285936 A AU2001285936 A AU 2001285936A AU 8593601 A AU8593601 A AU 8593601A AU 2001285936 A1 AU2001285936 A1 AU 2001285936A1
Authority
AU
Australia
Prior art keywords
signal processing
audio signal
adaptive noise
shaping modulation
shaping
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.)
Abandoned
Application number
AU2001285936A
Other languages
English (en)
Inventor
Petrus A. C. M. Nuijten
Derk Reefman
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 AU2001285936A1 publication Critical patent/AU2001285936A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/478—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication
    • H03M3/48—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication characterised by the type of range control, e.g. limiting
    • H03M3/482—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication characterised by the type of range control, e.g. limiting by adapting the quantisation step size
    • 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
    • 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
    • G11B20/00007—Time or data compression or expansion
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/062—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM]
    • H04B14/064—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM] with adaptive feedback
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/402—Arrangements specific to bandpass modulators
    • H03M3/404—Arrangements specific to bandpass modulators characterised by the type of bandpass filters used
    • H03M3/406—Arrangements specific to bandpass modulators characterised by the type of bandpass filters used by the use of a pair of integrators forming a closed loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
    • H03M3/422—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having one quantiser only
    • H03M3/43—Structural details of delta-sigma modulators, e.g. incremental 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
    • H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
    • H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
    • H03M3/452—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with weighted feedforward summation, i.e. with feedforward paths from more than one filter stage to the quantiser input
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/478—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication
    • H03M3/488—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication using automatic control
    • H03M3/49—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication using automatic control in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (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)
AU2001285936A 2000-09-08 2001-09-06 Audio signal processing with adaptive noise-shaping modulation Abandoned AU2001285936A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00203097 2000-09-08
EP00203097 2000-09-08
PCT/EP2001/010340 WO2002021526A1 (en) 2000-09-08 2001-09-06 Audio signal processing with adaptive noise-shaping modulation

Publications (1)

Publication Number Publication Date
AU2001285936A1 true AU2001285936A1 (en) 2002-03-22

Family

ID=8171989

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001285936A Abandoned AU2001285936A1 (en) 2000-09-08 2001-09-06 Audio signal processing with adaptive noise-shaping modulation

Country Status (8)

Country Link
US (3) US20020165631A1 (ko)
EP (2) EP1328938A1 (ko)
JP (2) JP2004508755A (ko)
KR (2) KR20020052203A (ko)
CN (2) CN1388965A (ko)
AU (1) AU2001285936A1 (ko)
BR (1) BR0107191A (ko)
WO (2) WO2002021526A1 (ko)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020052203A (ko) * 2000-09-08 2002-07-02 요트.게.아. 롤페즈 오디오 신호 압축
WO2004004174A1 (en) * 2002-06-28 2004-01-08 Koninklijke Philips Electronics N.V. Adaptive rate matching method
US8718298B2 (en) * 2003-12-19 2014-05-06 Lear Corporation NVH dependent parallel compression processing for automotive audio systems
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
US7009540B1 (en) * 2005-01-04 2006-03-07 Faraday Technology Corp. Method for designing a noise shaper with a single loop distributed feedback delta-sigma modulator
US20070147518A1 (en) * 2005-02-18 2007-06-28 Bruno Bessette Methods and devices for low-frequency emphasis during audio compression based on ACELP/TCX
US8249861B2 (en) * 2005-04-20 2012-08-21 Qnx Software Systems Limited High frequency compression integration
US8086451B2 (en) * 2005-04-20 2011-12-27 Qnx Software Systems Co. System for improving speech intelligibility through high frequency compression
US7813931B2 (en) * 2005-04-20 2010-10-12 QNX Software Systems, Co. System for improving speech quality and intelligibility with bandwidth compression/expansion
CN101189678A (zh) * 2005-05-30 2008-05-28 皇家飞利浦电子股份有限公司 具有最小存储要求的直接流数字音频
EP1900102A2 (en) * 2005-06-27 2008-03-19 Qualcomm Flarion Technologies, Inc. Methods and apparatus for implementing and/or using amplifiers and/or for performing various amplification related operations
US7289050B1 (en) * 2005-06-27 2007-10-30 Qualcomm Incorporated Amplification method and apparatus
US20080000431A1 (en) * 2006-06-29 2008-01-03 Stephen Longo Dog leash assembly
CN101479790B (zh) * 2006-06-29 2012-05-23 Nxp股份有限公司 噪声合成
TW200813816A (en) * 2006-09-11 2008-03-16 Princeton Technology Corp Optimal parameter adjusting method and system
BRPI0720266A2 (pt) * 2006-12-13 2014-01-28 Panasonic Corp Dispositivo de decodificação de aúdio e método de ajuste de potência
CN101179716B (zh) * 2007-11-30 2011-12-07 华南理工大学 一种压缩域的传输数据流音频自动增益控制方法
WO2011145044A1 (en) * 2010-05-17 2011-11-24 Green Sql Ltd Database translation system and method
FR3011408A1 (fr) * 2013-09-30 2015-04-03 Orange Re-echantillonnage d'un signal audio pour un codage/decodage a bas retard
EP3267587B1 (en) * 2015-03-03 2021-05-19 Sony Corporation Compression encoding device, compression encoding method, decoding device, decoding method and program
WO2017203976A1 (ja) * 2016-05-24 2017-11-30 ソニー株式会社 圧縮符号化装置及び方法、復号装置及び方法、並びにプログラム

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2744006B2 (ja) * 1988-03-15 1998-04-28 株式会社東芝 非線形ａ／ｄ変換回路及び非線形ａ／ｄ変換方法
JPH0311811A (ja) * 1989-06-09 1991-01-21 Fujitsu Ltd 適応型雑音整形フィルタ
US5594598A (en) 1992-10-19 1997-01-14 Canon Kabushiki Kaisha Information recording apparatus having variable compression ratio
JP3465401B2 (ja) * 1994-03-03 2003-11-10 ソニー株式会社 オーデイオ信号処理装置及びオーデイオ記録装置
US5608400A (en) * 1995-08-24 1997-03-04 Martin Marietta Corporation Selectable intermediate frequency sigma-delta analog-to-digital converter
US6434246B1 (en) * 1995-10-10 2002-08-13 Gn Resound As Apparatus and methods for combining audio compression and feedback cancellation in a hearing aid
US6097824A (en) * 1997-06-06 2000-08-01 Audiologic, Incorporated Continuous frequency dynamic range audio compressor
JP3327114B2 (ja) 1996-04-24 2002-09-24 ソニー株式会社 信号処理装置、信号記録装置及び信号再生装置
US6269338B1 (en) * 1996-10-10 2001-07-31 U.S. Philips Corporation Data compression and expansion of an audio signal
CN1179348C (zh) * 1996-11-07 2004-12-08 皇家菲利浦电子有限公司 比特流信号的数据处理
JP3328532B2 (ja) * 1997-01-22 2002-09-24 シャープ株式会社 デジタルデータの符号化方法
EP0922334A2 (en) * 1997-06-04 1999-06-16 Koninklijke Philips Electronics N.V. Data compression and expansion of an n-level information signal
JP3807036B2 (ja) * 1997-07-17 2006-08-09 ソニー株式会社 ディジタルデータ処理装置及び方法
US6218972B1 (en) * 1997-09-11 2001-04-17 Rockwell Science Center, Inc. Tunable bandpass sigma-delta digital receiver
EP0907258B1 (en) * 1997-10-03 2007-01-03 Matsushita Electric Industrial Co., Ltd. Audio signal compression, speech signal compression and speech recognition
US5966688A (en) * 1997-10-28 1999-10-12 Hughes Electronics Corporation Speech mode based multi-stage vector quantizer
GB2341763B (en) * 1998-09-15 2000-09-13 3Com Technologies Ltd Data receiver including hybrid decision feedback equalizer
JP4075167B2 (ja) * 1998-10-09 2008-04-16 ソニー株式会社 ディジタル信号再生装置及び処理装置
US6326912B1 (en) * 1999-09-24 2001-12-04 Akm Semiconductor, Inc. Analog-to-digital conversion using a multi-bit analog delta-sigma modulator combined with a one-bit digital delta-sigma modulator
KR20020052203A (ko) 2000-09-08 2002-07-02 요트.게.아. 롤페즈 오디오 신호 압축
US7277554B2 (en) * 2001-08-08 2007-10-02 Gn Resound North America Corporation Dynamic range compression using digital frequency warping

Also Published As

Publication number Publication date
US20020165631A1 (en) 2002-11-07
JP2004508755A (ja) 2004-03-18
JP2004508598A (ja) 2004-03-18
CN1388964A (zh) 2003-01-01
US6819275B2 (en) 2004-11-16
WO2002021526A1 (en) 2002-03-14
US20020163455A1 (en) 2002-11-07
BR0107191A (pt) 2002-07-16
US20040230427A1 (en) 2004-11-18
KR20020052203A (ko) 2002-07-02
KR20020051933A (ko) 2002-06-29
CN1308949C (zh) 2007-04-04
JP4950407B2 (ja) 2012-06-13
EP1328938A1 (en) 2003-07-23
CN1388965A (zh) 2003-01-01
EP1317754A1 (en) 2003-06-11
WO2002021525A1 (en) 2002-03-14

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