DE69732761D1 - Skalierbares Audiokodier/dekodierverfahren und Gerät - Google Patents

Skalierbares Audiokodier/dekodierverfahren und Gerät

Info

Publication number
DE69732761D1
DE69732761D1 DE69732761T DE69732761T DE69732761D1 DE 69732761 D1 DE69732761 D1 DE 69732761D1 DE 69732761 T DE69732761 T DE 69732761T DE 69732761 T DE69732761 T DE 69732761T DE 69732761 D1 DE69732761 D1 DE 69732761D1
Authority
DE
Germany
Prior art keywords
decoder
audio encoder
scalable audio
scalable
encoder
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.)
Expired - Lifetime
Application number
DE69732761T
Other languages
English (en)
Other versions
DE69732761T2 (de
Inventor
Yeon-Bae Kim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of DE69732761D1 publication Critical patent/DE69732761D1/de
Application granted granted Critical
Publication of DE69732761T2 publication Critical patent/DE69732761T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/184—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
DE1997632761 1997-04-02 1997-12-23 Verfahren und Vorrichtung zur kalkulierbaren Audiocodierung bzw.-decodie- rung Expired - Lifetime DE69732761T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR9712233 1997-04-02
KR19970012233 1997-04-02
KR1019970061300A KR100261254B1 (ko) 1997-04-02 1997-11-19 비트율 조절이 가능한 오디오 데이터 부호화/복호화방법 및 장치
KR9761300 1997-11-19

Publications (2)

Publication Number Publication Date
DE69732761D1 true DE69732761D1 (de) 2005-04-21
DE69732761T2 DE69732761T2 (de) 2006-04-13

Family

ID=26632642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997632761 Expired - Lifetime DE69732761T2 (de) 1997-04-02 1997-12-23 Verfahren und Vorrichtung zur kalkulierbaren Audiocodierung bzw.-decodie- rung

Country Status (12)

Country Link
US (2) US6094636A (de)
EP (1) EP0869622B1 (de)
JP (1) JP3354863B2 (de)
KR (1) KR100261254B1 (de)
CN (1) CN1154085C (de)
BR (1) BR9705838B1 (de)
DE (1) DE69732761T2 (de)
EG (1) EG21303A (de)
ID (1) ID19832A (de)
IL (1) IL122669A (de)
MY (1) MY117039A (de)
RU (1) RU2224302C2 (de)

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JPH10285042A (ja) 1998-10-23
BR9705838A (pt) 1999-07-13
CN1195160A (zh) 1998-10-07
IL122669A (en) 2000-12-06
EP0869622A2 (de) 1998-10-07
EP0869622A3 (de) 2000-09-06
BR9705838B1 (pt) 2010-06-29
KR19980079476A (ko) 1998-11-25
DE69732761T2 (de) 2006-04-13
US6094636A (en) 2000-07-25

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