CY1106164T1 - Εξομαλυνση απολαβης σε αποκωδικοποιητη σηματος ηχου και ομιλιας ευρειας ζωνης - Google Patents

Εξομαλυνση απολαβης σε αποκωδικοποιητη σηματος ηχου και ομιλιας ευρειας ζωνης

Info

Publication number
CY1106164T1
CY1106164T1 CY20061101344T CY061101344T CY1106164T1 CY 1106164 T1 CY1106164 T1 CY 1106164T1 CY 20061101344 T CY20061101344 T CY 20061101344T CY 061101344 T CY061101344 T CY 061101344T CY 1106164 T1 CY1106164 T1 CY 1106164T1
Authority
CY
Cyprus
Prior art keywords
gain
smoothing
smoothed
code vector
signal
Prior art date
Application number
CY20061101344T
Other languages
English (en)
Inventor
Bruno Bessette
Redwan Salami
Roch Lefebvre
Original Assignee
Voiceage Corporation
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4164645&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CY1106164(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voiceage Corporation filed Critical Voiceage Corporation
Publication of CY1106164T1 publication Critical patent/CY1106164T1/el

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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Circuits Of Receivers In General (AREA)
  • Stereophonic System (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Η μέθοδος εξομάλυνσης απολαβής και η συσκευή τροποποιούν το πλάτος ενός κωδικο-διανύσματος ανανέωσης σε σχέση με το θόρυβο βάθους που υπήρχε σε ένα προηγούμενο δειγματοληπτούμενο σήμα ευρείας ζώνης. Η συσκευή εξομάλυνσης απολαβής περιλαμβάνει έναν υπολογιστή εξομάλυνσης απολαβής για τον υπολογισμό μιας εξομαλυμένης απολαβής σε απόκριση ως προς έναν παράγοντα αντιπροσωπευτικού της φώνησης στο δειγματοληπτούμενο σήμα ευρείας ζώνης, ενός παράγοντα αντιπροσωπευτικού της σταθερότητας ενός συνόλου συντελεστών φίλτρων γραμμικής πρόβλεψης και μιας απολαβής προσαρμόσιμου κωδικο-βιβλίου. Η συσκευή εξομάλυνσης απολαβής περιλαμβάνει επίσης έναν ενισχυτή για την ενίσχυση του κωδικο-διανύσματος ανανέωσης με την εξομαλυμένη απολαβή ώστε να παραχθεί ένα κωδικο-διάνυσμα ανανέωσης με εξομαλυμένη απολαβή. Η λειτουργία της συσκευής εξομάλυνσης απολαβής βελτιώνει το αντιληπτό συνθεσιοποιημένο σήμα όταν υπάρχει θόρυβος βάθους στο δειγματοληπτούμενο σήμα ευρείας ζώνης.
CY20061101344T 1999-11-18 2006-09-20 Εξομαλυνση απολαβης σε αποκωδικοποιητη σηματος ηχου και ομιλιας ευρειας ζωνης CY1106164T1 (el)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002290037A CA2290037A1 (en) 1999-11-18 1999-11-18 Gain-smoothing amplifier device and method in codecs for wideband speech and audio signals
PCT/CA2000/001381 WO2001037264A1 (en) 1999-11-18 2000-11-17 Gain-smoothing in wideband speech and audio signal decoder

Publications (1)

Publication Number Publication Date
CY1106164T1 true CY1106164T1 (el) 2011-06-08

Family

ID=4164645

Family Applications (1)

Application Number Title Priority Date Filing Date
CY20061101344T CY1106164T1 (el) 1999-11-18 2006-09-20 Εξομαλυνση απολαβης σε αποκωδικοποιητη σηματος ηχου και ομιλιας ευρειας ζωνης

Country Status (13)

Country Link
US (1) US7191123B1 (el)
EP (1) EP1232494B1 (el)
JP (1) JP4662673B2 (el)
CN (1) CN1229775C (el)
AT (1) ATE336060T1 (el)
AU (1) AU1644401A (el)
CA (1) CA2290037A1 (el)
CY (1) CY1106164T1 (el)
DE (1) DE60029990T2 (el)
DK (1) DK1232494T3 (el)
ES (1) ES2266003T3 (el)
PT (1) PT1232494E (el)
WO (1) WO2001037264A1 (el)

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Also Published As

Publication number Publication date
CN1229775C (zh) 2005-11-30
ATE336060T1 (de) 2006-09-15
AU1644401A (en) 2001-05-30
ES2266003T3 (es) 2007-03-01
PT1232494E (pt) 2006-10-31
WO2001037264A1 (en) 2001-05-25
JP2003514267A (ja) 2003-04-15
DK1232494T3 (da) 2006-11-13
EP1232494B1 (en) 2006-08-09
US7191123B1 (en) 2007-03-13
JP4662673B2 (ja) 2011-03-30
DE60029990T2 (de) 2006-12-07
CA2290037A1 (en) 2001-05-18
CN1391689A (zh) 2003-01-15
DE60029990D1 (de) 2006-09-21
EP1232494A1 (en) 2002-08-21

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