FR2741744B1 - Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits - Google Patents

Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits

Info

Publication number
FR2741744B1
FR2741744B1 FR9513944A FR9513944A FR2741744B1 FR 2741744 B1 FR2741744 B1 FR 2741744B1 FR 9513944 A FR9513944 A FR 9513944A FR 9513944 A FR9513944 A FR 9513944A FR 2741744 B1 FR2741744 B1 FR 2741744B1
Authority
FR
France
Prior art keywords
vocoder
subband
evaluating
energy
flow
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 - Fee Related
Application number
FR9513944A
Other languages
English (en)
Other versions
FR2741744A1 (fr
Inventor
Pierre Andre Laurent
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR9513944A priority Critical patent/FR2741744B1/fr
Publication of FR2741744A1 publication Critical patent/FR2741744A1/fr
Application granted granted Critical
Publication of FR2741744B1 publication Critical patent/FR2741744B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
FR9513944A 1995-11-23 1995-11-23 Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits Expired - Fee Related FR2741744B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9513944A FR2741744B1 (fr) 1995-11-23 1995-11-23 Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9513944A FR2741744B1 (fr) 1995-11-23 1995-11-23 Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits

Publications (2)

Publication Number Publication Date
FR2741744A1 FR2741744A1 (fr) 1997-05-30
FR2741744B1 true FR2741744B1 (fr) 1998-01-02

Family

ID=9484860

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9513944A Expired - Fee Related FR2741744B1 (fr) 1995-11-23 1995-11-23 Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits

Country Status (1)

Country Link
FR (1) FR2741744B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2476043B (en) * 2009-12-08 2016-10-26 Skype Decoding speech signals

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875341A (en) * 1972-02-24 1975-04-01 Int Standard Electric Corp System for transferring wideband sound signals
IT1180126B (it) * 1984-11-13 1987-09-23 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante tecniche di quantizzazione vettoriale
CA1333425C (fr) * 1988-09-21 1994-12-06 Kazunori Ozawa Systeme de communication pouvant ameliorer la qualite des paroles par classification des signaux vocaux
JPH0782360B2 (ja) * 1989-10-02 1995-09-06 日本電信電話株式会社 音声分析合成方法
DE68914147T2 (de) * 1989-06-07 1994-10-20 Ibm Sprachcodierer mit niedriger Datenrate und niedriger Verzögerung.
JPH05119796A (ja) * 1991-10-29 1993-05-18 Nippon Telegr & Teleph Corp <Ntt> 評価用標準音声信号発生方法

Also Published As

Publication number Publication date
FR2741744A1 (fr) 1997-05-30

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CD Change of name or company name
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