FR1406026A - New enhancements to voice analysis systems - Google Patents

New enhancements to voice analysis systems

Info

Publication number
FR1406026A
FR1406026A FR06007398A FR06007398A FR1406026A FR 1406026 A FR1406026 A FR 1406026A FR 06007398 A FR06007398 A FR 06007398A FR 06007398 A FR06007398 A FR 06007398A FR 1406026 A FR1406026 A FR 1406026A
Authority
FR
France
Prior art keywords
register
signal
contents
signals
digital signals
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
Application number
FR06007398A
Other languages
French (fr)
Inventor
Helmut Lamparter
Guenter Knauft
Wilhelm Spruth
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.)
Compagnie IBM France SAS
Original Assignee
Compagnie IBM France SAS
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 Compagnie IBM France SAS filed Critical Compagnie IBM France SAS
Priority to FR06007398A priority Critical patent/FR1406026A/en
Priority to CH664265A priority patent/CH435784A/en
Priority to GB2175465A priority patent/GB1059015A/en
Priority to DE19651472003 priority patent/DE1472003B2/en
Priority to SE683465A priority patent/SE307977B/xx
Application granted granted Critical
Publication of FR1406026A publication Critical patent/FR1406026A/en
Expired 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
    • 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)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

1,059,015. Vocoders. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 21, 1965 [May 26, 1964], No. 21754/65. Heading H4R. A vocoder analyser periodically produces a set of digital signals representative of characteristics, e.g. the aggregate function, of the input signal which are inserted into a store, each set of signals produced is compared with the previous set stored in the storage device and only transmitted if there is more than a predetermined difference between the two sets of signals. In the Figure a speech signal is applied over lead 1 to the spectrum analysing filters 21-2n, rectifiers 31-3n and low-pass filters 41-4n. The outputs of the low pass filters are sampled periodically by gates 51-5n, operated over lines 61-6n from the analyser control apparatus, and the samples fed via analogue to digital converters 71-7n into a storage register 8 as a set of digital signals defining the aggregate function of the speech signal. After each sample has been taken, comparison circuit 10 is actuated by a signal on line 12 to compare the digital signals in register 8 with a previous set of digital signals stored in register 9. If the signals differ by more than a predetermined amount, e.g. differences of more than two units in the numbers stored in respect of more than two channels, then a signal is transmitted via a decision circuit 11 to initiate the transfer either in serial or parallel form of the contents of register 8 to the output line 13 and also to replace the contents of register 9 by the contents of register 8 ready for further comparisons. If there is no substantial difference revealed by the comparison then the contents of register 8 are discarded, register 9 is undisturbed and a signal is transmitted via circuit 11 to indicate at the receiver that the previously transmitted aggregate function signal is to be re-used.
FR06007398A 1964-05-26 1964-05-26 New enhancements to voice analysis systems Expired FR1406026A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR06007398A FR1406026A (en) 1964-05-26 1964-05-26 New enhancements to voice analysis systems
CH664265A CH435784A (en) 1964-05-26 1965-05-12 Method and arrangement for processing the spectrum function in speech analysis
GB2175465A GB1059015A (en) 1964-05-26 1965-05-21 Improvements in analysers for acoustic signals
DE19651472003 DE1472003B2 (en) 1964-05-26 1965-05-24 PROCEDURE AND ARRANGEMENT FOR DERIVING SPECTRUM FUNCTION IN SPEECH ANALYSIS
SE683465A SE307977B (en) 1964-05-26 1965-05-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR06007398A FR1406026A (en) 1964-05-26 1964-05-26 New enhancements to voice analysis systems

Publications (1)

Publication Number Publication Date
FR1406026A true FR1406026A (en) 1965-07-16

Family

ID=1574602

Family Applications (1)

Application Number Title Priority Date Filing Date
FR06007398A Expired FR1406026A (en) 1964-05-26 1964-05-26 New enhancements to voice analysis systems

Country Status (5)

Country Link
CH (1) CH435784A (en)
DE (1) DE1472003B2 (en)
FR (1) FR1406026A (en)
GB (1) GB1059015A (en)
SE (1) SE307977B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2649259C2 (en) * 1976-10-29 1983-06-09 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Method for the automatic detection of disturbed telephone speech
CH645501GA3 (en) * 1981-07-24 1984-10-15

Also Published As

Publication number Publication date
SE307977B (en) 1969-01-27
CH435784A (en) 1967-05-15
DE1472003A1 (en) 1969-10-09
DE1472003B2 (en) 1976-09-16
GB1059015A (en) 1967-02-15

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