FR1415553A - Improvements to voice analysis systems - Google Patents

Improvements to voice analysis systems

Info

Publication number
FR1415553A
FR1415553A FR7397A FR06007397A FR1415553A FR 1415553 A FR1415553 A FR 1415553A FR 7397 A FR7397 A FR 7397A FR 06007397 A FR06007397 A FR 06007397A FR 1415553 A FR1415553 A FR 1415553A
Authority
FR
France
Prior art keywords
contents
register
sum
produced
zero
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
FR7397A
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 FR7397A priority Critical patent/FR1415553A/en
Priority to CH667265A priority patent/CH430802A/en
Priority to DE19651271203 priority patent/DE1271203B/en
Priority to SE683365A priority patent/SE308544B/xx
Priority to GB2234865A priority patent/GB1041948A/en
Application granted granted Critical
Publication of FR1415553A publication Critical patent/FR1415553A/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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

1,041,948. Frequency digitizers. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 26, 1965 [May 26, 1964], No. 22348/65. Heading G4H. The excitation function is produced from vocal signals by apparatus which includes means for eliminating the effects of spurious zero-crossings caused by harmonics. The signals are passed through a low-pass filter 2, Fig. 6 (not shown), to a zero-crossing detector 3. Counter 5 is continuously advanced by clock pulses and is reset by detector 3, the output of which also opens gate 6 to pass the contents of the counter to register 11. If no spurious zero crossings have occurred adder/subtractor 9 and decision circuit 10 determine that the sum of the contents of registers 11 and 12 is significantly greater than the contents of register 13 and a shift signal is produced to transfer the contents of each register to the next, register 13 feeding mean value circuit 8. If a spurious zero-crossing occurs, the sum of the contents of registers 11 and 12 is approximately the same as the contents of register 13, no shift signal is produced and the contents of 12 are replaced by the sum from 11 and 12, the next digitized value subsequently being substituted in 11. Circuit 8 includes a shift register 14 containing the last ten digitized values, a register 16 containing the sum of the last ten values (s), adder 15 deriving the new sum (s+tn-tn-10), and a divider 17 dividing the sum by 10 to obtain the mean value.
FR7397A 1964-05-26 1964-05-26 Improvements to voice analysis systems Expired FR1415553A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7397A FR1415553A (en) 1964-05-26 1964-05-26 Improvements to voice analysis systems
CH667265A CH430802A (en) 1964-05-26 1965-05-12 Method and arrangement for obtaining the excitation function in speech analysis according to the vocoder principle
DE19651271203 DE1271203B (en) 1964-05-26 1965-05-24 Method and arrangement for obtaining the excitation function in channel vocoders
SE683365A SE308544B (en) 1964-05-26 1965-05-25
GB2234865A GB1041948A (en) 1964-05-26 1965-05-26 Improvements in or relating to apparatus for determining the fundamental frequency or period of an electrical signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7397A FR1415553A (en) 1964-05-26 1964-05-26 Improvements to voice analysis systems

Publications (1)

Publication Number Publication Date
FR1415553A true FR1415553A (en) 1965-10-29

Family

ID=39791065

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7397A Expired FR1415553A (en) 1964-05-26 1964-05-26 Improvements to voice analysis systems

Country Status (5)

Country Link
CH (1) CH430802A (en)
DE (1) DE1271203B (en)
FR (1) FR1415553A (en)
GB (1) GB1041948A (en)
SE (1) SE308544B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0127892A1 (en) * 1983-06-03 1984-12-12 The Variable Speech Control Company ("VSC") Method and apparatus for pitch period controlled voice signal processing
US4700391A (en) * 1983-06-03 1987-10-13 The Variable Speech Control Company ("Vsc") Method and apparatus for pitch controlled voice signal processing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611969A1 (en) * 1987-02-24 1988-09-09 Boulanger Marc Voice recognition device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109142A (en) * 1960-10-06 1963-10-29 Bell Telephone Labor Inc Apparatus for encoding pitch information in a vocoder system
US3102928A (en) * 1960-12-23 1963-09-03 Bell Telephone Labor Inc Vocoder excitation generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0127892A1 (en) * 1983-06-03 1984-12-12 The Variable Speech Control Company ("VSC") Method and apparatus for pitch period controlled voice signal processing
US4700391A (en) * 1983-06-03 1987-10-13 The Variable Speech Control Company ("Vsc") Method and apparatus for pitch controlled voice signal processing

Also Published As

Publication number Publication date
SE308544B (en) 1969-02-17
GB1041948A (en) 1966-09-07
CH430802A (en) 1967-02-28
DE1271203B (en) 1968-06-27

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