FR2394933A1 - DIGITAL MESH FILTER FOR SIGNAL OR SPEECH SYNTHESIS - Google Patents

DIGITAL MESH FILTER FOR SIGNAL OR SPEECH SYNTHESIS

Info

Publication number
FR2394933A1
FR2394933A1 FR7818289A FR7818289A FR2394933A1 FR 2394933 A1 FR2394933 A1 FR 2394933A1 FR 7818289 A FR7818289 A FR 7818289A FR 7818289 A FR7818289 A FR 7818289A FR 2394933 A1 FR2394933 A1 FR 2394933A1
Authority
FR
France
Prior art keywords
signal
speech synthesis
mesh filter
multiplier
output
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.)
Granted
Application number
FR7818289A
Other languages
French (fr)
Other versions
FR2394933B1 (en
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of FR2394933A1 publication Critical patent/FR2394933A1/en
Application granted granted Critical
Publication of FR2394933B1 publication Critical patent/FR2394933B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0283—Filters characterised by the filter structure
    • H03H17/0285—Ladder or lattice filters
    • 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
    • G10L13/00—Speech synthesis; Text to speech systems
    • G10L13/02—Methods for producing synthetic speech; Speech synthesisers
    • G10L13/04—Details of speech synthesis systems, e.g. synthesiser structure or memory management
    • G10L13/047—Architecture of speech synthesisers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/04—Recursive filters
    • 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)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Complex Calculations (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

L'invention concerne un filtre numérique du type utilisé dans des circuits générateurs de formes d'ondes complexes. Ce filtre comporte un multiplicateur, un additionneur connecté à la sortie du multiplicateur et des circuits à retard connectés à la sortie de l'additionneur. Une mémoire à registre est reliée à la sortie de l'un des circuits à retard. Les coefficients du filtre sont mémorisés dans une mémoire reliée à une entrée du multiplicateur. L'invention s'applique notamment à la synthèse de la parole humaine.The invention relates to a digital filter of the type used in circuits generating complex waveforms. This filter comprises a multiplier, an adder connected to the output of the multiplier and delay circuits connected to the output of the adder. A register memory is connected to the output of one of the delay circuits. The coefficients of the filter are stored in a memory connected to an input of the multiplier. The invention applies in particular to the synthesis of human speech.

FR7818289A 1977-06-17 1978-06-19 DIGITAL MESH FILTER FOR SIGNAL OR SPEECH SYNTHESIS Granted FR2394933A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80746177A 1977-06-17 1977-06-17

Publications (2)

Publication Number Publication Date
FR2394933A1 true FR2394933A1 (en) 1979-01-12
FR2394933B1 FR2394933B1 (en) 1983-09-30

Family

ID=25196423

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7818289A Granted FR2394933A1 (en) 1977-06-17 1978-06-19 DIGITAL MESH FILTER FOR SIGNAL OR SPEECH SYNTHESIS

Country Status (20)

Country Link
JP (1) JPS547838A (en)
AR (1) AR218313A1 (en)
AU (1) AU520897B2 (en)
BE (1) BE868205A (en)
BR (1) BR7803856A (en)
CA (1) CA1118104A (en)
CH (1) CH633922A5 (en)
CS (1) CS266303B2 (en)
DE (1) DE2826570A1 (en)
ES (3) ES470853A1 (en)
FR (1) FR2394933A1 (en)
GB (1) GB1603993A (en)
IL (1) IL54878A (en)
IT (1) IT1156831B (en)
MX (1) MX144810A (en)
NL (1) NL186425C (en)
PL (1) PL116404B1 (en)
SE (1) SE437747B (en)
SU (1) SU886760A3 (en)
ZA (1) ZA783305B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443114A1 (en) * 1978-04-28 1980-06-27 Texas Instruments Inc DEVICE FOR DIGITAL SPEECH SYNTHESIS
NL8005449A (en) * 1979-10-03 1981-04-07 Nippon Telegraph & Telephone SYNTHESIS DEVICE FOR SOUND.

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6054680B2 (en) * 1981-07-16 1985-11-30 カシオ計算機株式会社 LSP speech synthesizer
AU588334B2 (en) * 1985-07-18 1989-09-14 Raytheon Company Digital sound synthesizer and method
AU620384B2 (en) * 1988-03-28 1992-02-20 Nec Corporation Linear predictive speech analysis-synthesis apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199427A5 (en) * 1972-09-12 1974-04-05 Ibm France
US3979557A (en) * 1974-07-03 1976-09-07 International Telephone And Telegraph Corporation Speech processor system for pitch period extraction using prediction filters
US4022974A (en) * 1976-06-03 1977-05-10 Bell Telephone Laboratories, Incorporated Adaptive linear prediction speech synthesizer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7506141A (en) * 1975-05-26 1976-11-30 Philips Nv DIGITAL FILTER.
US3980873A (en) * 1975-06-27 1976-09-14 Aeronutronic Ford Corporation Digital convolutional filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199427A5 (en) * 1972-09-12 1974-04-05 Ibm France
US3979557A (en) * 1974-07-03 1976-09-07 International Telephone And Telegraph Corporation Speech processor system for pitch period extraction using prediction filters
US4022974A (en) * 1976-06-03 1977-05-10 Bell Telephone Laboratories, Incorporated Adaptive linear prediction speech synthesizer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/68 *
EXBK/74 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443114A1 (en) * 1978-04-28 1980-06-27 Texas Instruments Inc DEVICE FOR DIGITAL SPEECH SYNTHESIS
NL8005449A (en) * 1979-10-03 1981-04-07 Nippon Telegraph & Telephone SYNTHESIS DEVICE FOR SOUND.
FR2466826A1 (en) * 1979-10-03 1981-04-10 Nippon Telegraph & Telephone SYNTHESIZER OF SOUNDS

Also Published As

Publication number Publication date
GB1603993A (en) 1981-12-02
SU886760A3 (en) 1981-11-30
AU520897B2 (en) 1982-03-04
ES477928A1 (en) 1979-10-16
NL186425C (en) 1990-11-16
ES470853A1 (en) 1979-10-01
IT7849909A0 (en) 1978-06-16
SE437747B (en) 1985-03-11
BE868205A (en) 1978-10-16
ZA783305B (en) 1980-01-30
AR218313A1 (en) 1980-05-30
DE2826570A1 (en) 1979-01-04
DE2826570C2 (en) 1988-10-20
NL186425B (en) 1990-06-18
BR7803856A (en) 1979-04-17
NL7806366A (en) 1978-12-19
CH633922A5 (en) 1982-12-31
IL54878A0 (en) 1978-08-31
CS266303B2 (en) 1989-12-13
AU3701778A (en) 1979-12-20
JPS547838A (en) 1979-01-20
IL54878A (en) 1980-07-31
PL207704A1 (en) 1979-04-09
PL116404B1 (en) 1981-06-30
CA1118104A (en) 1982-02-09
SE7806380L (en) 1978-12-18
FR2394933B1 (en) 1983-09-30
CS401978A2 (en) 1989-02-10
MX144810A (en) 1981-11-23
ES477929A1 (en) 1979-10-16
IT1156831B (en) 1987-02-04
JPS6144320B2 (en) 1986-10-02

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