FI914993A - FOERFARANDE FOER KODNING OCH DEKODNING AV EN ANALOGISK SIGNAL, SOM AER SAMPLAD OCH SOM AER TILL SIN NATUR AOTERKOMMANDE OCH EN ANORDNING FOER KODNING OCH DEKODNING UTNYTTJANDE DETTA FOERFARANDE. - Google Patents

FOERFARANDE FOER KODNING OCH DEKODNING AV EN ANALOGISK SIGNAL, SOM AER SAMPLAD OCH SOM AER TILL SIN NATUR AOTERKOMMANDE OCH EN ANORDNING FOER KODNING OCH DEKODNING UTNYTTJANDE DETTA FOERFARANDE. Download PDF

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Publication number
FI914993A
FI914993A FI914993A FI914993A FI914993A FI 914993 A FI914993 A FI 914993A FI 914993 A FI914993 A FI 914993A FI 914993 A FI914993 A FI 914993A FI 914993 A FI914993 A FI 914993A
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FI
Finland
Prior art keywords
och
kodning
dekodning
foerfarande
foer
Prior art date
Application number
FI914993A
Other languages
Finnish (fi)
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FI914993A0 (en
FI105623B (en
Inventor
John Gerard Beerends
Frank Muller
Ravesteijn Robertus Lamber Van
Original Assignee
Nederland Ptt
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.)
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Publication date
Application filed by Nederland Ptt filed Critical Nederland Ptt
Publication of FI914993A0 publication Critical patent/FI914993A0/en
Publication of FI914993A publication Critical patent/FI914993A/en
Application granted granted Critical
Publication of FI105623B publication Critical patent/FI105623B/en

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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

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  • 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.
FI914993A 1990-10-23 1991-10-23 A method of encoding and decoding an analog signal which is sampled and which is inherently repetitive and a device for encoding and decoding utilizing this method FI105623B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9002308 1990-10-23
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 (3)

Publication Number Publication Date
FI914993A0 FI914993A0 (en) 1991-10-23
FI914993A true FI914993A (en) 1992-04-24
FI105623B FI105623B (en) 2000-09-15

Family

ID=19857866

Family Applications (1)

Application Number Title Priority Date Filing Date
FI914993A FI105623B (en) 1990-10-23 1991-10-23 A method of encoding and decoding an analog signal which is sampled and which is inherently repetitive and a device for encoding and decoding utilizing this method

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)

Families Citing this family (6)

* 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
CN114519996B (en) * 2022-04-20 2022-07-08 北京远鉴信息技术有限公司 Method, device and equipment for determining voice synthesis type and storage medium

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

Also Published As

Publication number Publication date
FI914993A0 (en) 1991-10-23
EP0482699B1 (en) 1997-08-20
FI105623B (en) 2000-09-15
CA2053133C (en) 1996-05-21
NL9002308A (en) 1992-05-18
DE69127339T2 (en) 1998-01-29
EP0482699A3 (en) 1992-08-19
JP2958726B2 (en) 1999-10-06
DK0482699T3 (en) 1998-03-30
NO914105L (en) 1992-04-24
ATE157188T1 (en) 1997-09-15
EP0482699A2 (en) 1992-04-29
NO914105D0 (en) 1991-10-18
JPH05268098A (en) 1993-10-15
PT99294A (en) 1994-01-31
CA2053133A1 (en) 1992-04-24
NO305188B1 (en) 1999-04-12
DE69127339D1 (en) 1997-09-25
ES2106051T3 (en) 1997-11-01

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