IT8568060A0 - Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bitdi codifica - Google Patents

Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bitdi codifica

Info

Publication number
IT8568060A0
IT8568060A0 IT8568060A IT6806085A IT8568060A0 IT 8568060 A0 IT8568060 A0 IT 8568060A0 IT 8568060 A IT8568060 A IT 8568060A IT 6806085 A IT6806085 A IT 6806085A IT 8568060 A0 IT8568060 A0 IT 8568060A0
Authority
IT
Italy
Prior art keywords
coding
decoding
sub
procedure
speech signal
Prior art date
Application number
IT8568060A
Other languages
English (en)
Other versions
IT1184023B (it
Inventor
Maurizio Copperi
Daniele Sereno
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT68060/85A priority Critical patent/IT1184023B/it
Publication of IT8568060A0 publication Critical patent/IT8568060A0/it
Priority to US06/934,302 priority patent/US4811398A/en
Priority to JP61296855A priority patent/JPS62147500A/ja
Priority to CA000525347A priority patent/CA1293569C/en
Priority to EP86117488A priority patent/EP0230001B1/en
Priority to DE198686117488T priority patent/DE230001T1/de
Priority to DE8686117488T priority patent/DE3673978D1/de
Application granted granted Critical
Publication of IT1184023B publication Critical patent/IT1184023B/it

Links

Classifications

    • 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
    • H04B1/667—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 a division in frequency subbands
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
IT68060/85A 1985-12-17 1985-12-17 Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica IT1184023B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT68060/85A IT1184023B (it) 1985-12-17 1985-12-17 Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica
US06/934,302 US4811398A (en) 1985-12-17 1986-11-24 Method of and device for speech signal coding and decoding by subband analysis and vector quantization with dynamic bit allocation
JP61296855A JPS62147500A (ja) 1985-12-17 1986-12-15 サブバンド分析およびダイナミツク・ビツト割当てによるベクトル量子化を用いた音声信号の符号化および復号化のための方法および装置
CA000525347A CA1293569C (en) 1985-12-17 1986-12-15 Method of and device for speech signal coding and decoding by subbband analysis and vector quantization with dynamic bit allocation
EP86117488A EP0230001B1 (en) 1985-12-17 1986-12-16 Method of and device for speech signal coding and decoding by subband analysis and vector quantization with dynamic bit allocation
DE198686117488T DE230001T1 (de) 1985-12-17 1986-12-16 Verfahren und einrichtung zur sprachcodierung und decodierung bei einer teilbandanalyse und vektorquantisierung mit dynamischer bitverteilung.
DE8686117488T DE3673978D1 (de) 1985-12-17 1986-12-16 Verfahren und einrichtung zur sprachcodierung und decodierung bei einer teilbandanalyse und vektorquantisierung mit dynamischer bitverteilung.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68060/85A IT1184023B (it) 1985-12-17 1985-12-17 Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica

Publications (2)

Publication Number Publication Date
IT8568060A0 true IT8568060A0 (it) 1985-12-17
IT1184023B IT1184023B (it) 1987-10-22

Family

ID=11307553

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68060/85A IT1184023B (it) 1985-12-17 1985-12-17 Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica

Country Status (6)

Country Link
US (1) US4811398A (it)
EP (1) EP0230001B1 (it)
JP (1) JPS62147500A (it)
CA (1) CA1293569C (it)
DE (2) DE230001T1 (it)
IT (1) IT1184023B (it)

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CA2088082C (en) * 1992-02-07 1999-01-19 John Hartung Dynamic bit allocation for three-dimensional subband video coding
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US5526464A (en) * 1993-04-29 1996-06-11 Northern Telecom Limited Reducing search complexity for code-excited linear prediction (CELP) coding
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Also Published As

Publication number Publication date
DE3673978D1 (de) 1990-10-11
DE230001T1 (de) 1987-11-26
EP0230001A1 (en) 1987-07-29
CA1293569C (en) 1991-12-24
US4811398A (en) 1989-03-07
IT1184023B (it) 1987-10-22
EP0230001B1 (en) 1990-09-05
JPS62147500A (ja) 1987-07-01

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