DE69127339D1 - Method and device for coding and decoding a sampled analog signal with repetition properties - Google Patents

Method and device for coding and decoding a sampled analog signal with repetition properties

Info

Publication number
DE69127339D1
DE69127339D1 DE69127339T DE69127339T DE69127339D1 DE 69127339 D1 DE69127339 D1 DE 69127339D1 DE 69127339 T DE69127339 T DE 69127339T DE 69127339 T DE69127339 T DE 69127339T DE 69127339 D1 DE69127339 D1 DE 69127339D1
Authority
DE
Germany
Prior art keywords
components
decoding
coding
analog signal
stp
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
DE69127339T
Other languages
German (de)
Other versions
DE69127339T2 (en
Inventor
John Gerard Beerends
Frank Muller
Ravesteijn Robertus Lamber Van
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 KPN NV
Original Assignee
Koninklijke PTT Nederland 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 PTT Nederland NV filed Critical Koninklijke PTT Nederland NV
Publication of DE69127339D1 publication Critical patent/DE69127339D1/en
Application granted granted Critical
Publication of DE69127339T2 publication Critical patent/DE69127339T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L19/04—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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
  • Electrically Operated Instructional Devices (AREA)

Abstract

Frequency components are calculated from the STP-filtered speech signal. The amplitudes of these are combined in a manner such that the resultant values are associated with frequencies which are situated equidistantly on a linear Bark scale. Said components are quantised, possibly after scaling. In the decoder, the components are again distributed over the frequency spectrum. In the coder, the fundamental regularity D is determined with an LTP technique, after which it is transmitted. In the decoder the phases of the reconstructed signal at the spacing D in the past are determined. These phases are combined with the amplitudes already present in the frequency spectrum, after which transformation back to the time domain takes place. Inverse STP filtering is then carried out.
DE69127339T 1990-10-23 1991-10-16 Method and device for coding and decoding a sampled analog signal with repetition properties Expired - Lifetime DE69127339T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9002308A NL9002308A (en) 1990-10-23 1990-10-23 METHOD FOR CODING AND DECODING A SAMPLED ANALOGUE SIGNAL WITH A REPEATING CHARACTER AND AN APPARATUS FOR CODING AND DECODING ACCORDING TO THIS METHOD

Publications (2)

Publication Number Publication Date
DE69127339D1 true DE69127339D1 (en) 1997-09-25
DE69127339T2 DE69127339T2 (en) 1998-01-29

Family

ID=19857866

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127339T Expired - Lifetime DE69127339T2 (en) 1990-10-23 1991-10-16 Method and device for coding and decoding a sampled analog signal with repetition properties

Country Status (11)

Country Link
EP (1) EP0482699B1 (en)
JP (1) JP2958726B2 (en)
AT (1) ATE157188T1 (en)
CA (1) CA2053133C (en)
DE (1) DE69127339T2 (en)
DK (1) DK0482699T3 (en)
ES (1) ES2106051T3 (en)
FI (1) FI105623B (en)
NL (1) NL9002308A (en)
NO (1) NO305188B1 (en)
PT (1) PT99294A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114519996A (en) * 2022-04-20 2022-05-20 北京远鉴信息技术有限公司 Method, device and equipment for determining voice synthesis type and storage medium

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07261797A (en) * 1994-03-18 1995-10-13 Mitsubishi Electric Corp Signal encoding device and signal decoding device
JPH09127995A (en) * 1995-10-26 1997-05-16 Sony Corp Signal decoding method and signal decoder
JP2000165251A (en) * 1998-11-27 2000-06-16 Matsushita Electric Ind Co Ltd Audio signal coding device and microphone realizing the same
FI116992B (en) 1999-07-05 2006-04-28 Nokia Corp Methods, systems, and devices for enhancing audio coding and transmission
EP1113432B1 (en) * 1999-12-24 2011-03-30 International Business Machines Corporation Method and system for detecting identical digital data

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5650398A (en) * 1979-10-01 1981-05-07 Hitachi Ltd Sound synthesizer
US4742550A (en) * 1984-09-17 1988-05-03 Motorola, Inc. 4800 BPS interoperable relp system
JP2892462B2 (en) * 1990-08-27 1999-05-17 沖電気工業株式会社 Code-excited linear predictive encoder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114519996A (en) * 2022-04-20 2022-05-20 北京远鉴信息技术有限公司 Method, device and equipment for determining voice synthesis type and storage medium

Also Published As

Publication number Publication date
JPH05268098A (en) 1993-10-15
NO914105D0 (en) 1991-10-18
NL9002308A (en) 1992-05-18
EP0482699B1 (en) 1997-08-20
JP2958726B2 (en) 1999-10-06
FI914993A0 (en) 1991-10-23
ES2106051T3 (en) 1997-11-01
CA2053133C (en) 1996-05-21
FI105623B (en) 2000-09-15
EP0482699A3 (en) 1992-08-19
DK0482699T3 (en) 1998-03-30
NO914105L (en) 1992-04-24
NO305188B1 (en) 1999-04-12
CA2053133A1 (en) 1992-04-24
PT99294A (en) 1994-01-31
ATE157188T1 (en) 1997-09-15
DE69127339T2 (en) 1998-01-29
FI914993A (en) 1992-04-24
EP0482699A2 (en) 1992-04-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE KPN N.V., GRONINGEN, NL