FR2074813A1 - - Google Patents

Info

Publication number
FR2074813A1
FR2074813A1 FR7003429A FR7003429A FR2074813A1 FR 2074813 A1 FR2074813 A1 FR 2074813A1 FR 7003429 A FR7003429 A FR 7003429A FR 7003429 A FR7003429 A FR 7003429A FR 2074813 A1 FR2074813 A1 FR 2074813A1
Authority
FR
France
Prior art keywords
filters
parameters
phonemes
store
speech
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.)
Withdrawn
Application number
FR7003429A
Other languages
French (fr)
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.)
LANNIONNAIS ELECTRONIQUE
Original Assignee
LANNIONNAIS ELECTRONIQUE
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 LANNIONNAIS ELECTRONIQUE filed Critical LANNIONNAIS ELECTRONIQUE
Priority to FR7003429A priority Critical patent/FR2074813A1/fr
Priority to DE19712104012 priority patent/DE2104012C3/en
Priority to GB2079671A priority patent/GB1303417A/en
Publication of FR2074813A1 publication Critical patent/FR2074813A1/fr
Withdrawn legal-status Critical Current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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders

Landscapes

  • 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)
  • Auxiliary Devices For Music (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
  • Complex Calculations (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

1303417 Speech recognition SOC LANNIONNAISE D'ELECTRONIQUE 19 April 1971 [30 Jan 1970] 20796/71 Heading G4R [Also in Division H3] A speech analyser employs a set of digital filters to analyse the phonemes in a spoken word. Each data word representative of a portion of the spoken word is applied to selected ones of the filters, the parameters of these selected filters being set so that the filters have a transfer function suitable for the analysis of a particular phoneme. The filters selected, and the parameters, are changed cyclically so that the filters are suitable for the analysis of n phonemes in turn. The parameters are selected according to the speech characteristics of the speaker. The speech waveform is sampled, the samples passing to an analogdigital converter which provides digital signals representing the frequency variation of the successive samples. The signals pass to a store having a capacity equivalent to the duration of about one phoneme. The signals pass from the store to selected digital filters via a switching circuit. In the case of a language having 36 phonemes the switching circuit selects in turn 36 different combinations of filters selected from a group of 16 filters-as described the filters are Lerner filters. In synchronism with the switching of the filters the parameters of the filters are altered under the control of a store containing the parameters required to set the selected filters, for each position of the switch, to present a transfer function suitable for the analysis of a corresponding one of the phonemes. The filters provide digital signals indicative of the phonemes. To accommodate different speakers the contents of the parameter store may be replaced by parameters pertinent to the particular speaker.
FR7003429A 1970-01-30 1970-01-30 Withdrawn FR2074813A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7003429A FR2074813A1 (en) 1970-01-30 1970-01-30
DE19712104012 DE2104012C3 (en) 1970-01-30 1971-01-28 Electrical device for recognizing speech sounds
GB2079671A GB1303417A (en) 1970-01-30 1971-04-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7003429A FR2074813A1 (en) 1970-01-30 1970-01-30

Publications (1)

Publication Number Publication Date
FR2074813A1 true FR2074813A1 (en) 1971-10-08

Family

ID=9049881

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7003429A Withdrawn FR2074813A1 (en) 1970-01-30 1970-01-30

Country Status (3)

Country Link
DE (1) DE2104012C3 (en)
FR (1) FR2074813A1 (en)
GB (1) GB1303417A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478355A1 (en) * 1980-03-14 1981-09-18 Itt SPECTRUM ANALYZER, IN PARTICULAR FOR SPEECH RECOGNITION IN A VOICE-CONTROLLED TELEPHONE DEVICE

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1056504A (en) * 1975-04-02 1979-06-12 Visvaldis A. Vitols Keyword detection in continuous speech using continuous asynchronous correlation
US4351032A (en) 1978-12-04 1982-09-21 General Electric Company Frequency sensing circuit
CN103177723A (en) * 2011-12-20 2013-06-26 上海博泰悦臻电子设备制造有限公司 Speech processing device, vehicle-mounted terminal device and speech processing method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1163567B (en) * 1958-10-31 1964-02-20 E H K Kuepfmueller Dr Ing Device for recognizing speech sounds
GB1055371A (en) * 1964-03-06 1967-01-18 Standard Telephones Cables Ltd Apparatus for the recognition of speech
US3466394A (en) * 1966-05-02 1969-09-09 Ibm Voice verification system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478355A1 (en) * 1980-03-14 1981-09-18 Itt SPECTRUM ANALYZER, IN PARTICULAR FOR SPEECH RECOGNITION IN A VOICE-CONTROLLED TELEPHONE DEVICE

Also Published As

Publication number Publication date
DE2104012C3 (en) 1981-05-27
GB1303417A (en) 1973-01-17
DE2104012A1 (en) 1971-08-05
DE2104012B2 (en) 1980-08-07

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ST Notification of lapse