GB1170306A - Apparatus for Analysing Complex Waveforms - Google Patents

Apparatus for Analysing Complex Waveforms

Info

Publication number
GB1170306A
GB1170306A GB52146/67A GB5214667A GB1170306A GB 1170306 A GB1170306 A GB 1170306A GB 52146/67 A GB52146/67 A GB 52146/67A GB 5214667 A GB5214667 A GB 5214667A GB 1170306 A GB1170306 A GB 1170306A
Authority
GB
United Kingdom
Prior art keywords
speech
average
time intervals
period
waveform
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
GB52146/67A
Inventor
Robert Walter Alister Scarr
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to GB51246/67A priority Critical patent/GB1106762A/en
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB52146/67A priority patent/GB1170306A/en
Priority to US770690A priority patent/US3573612A/en
Priority to DE19681809296 priority patent/DE1809296A1/en
Publication of GB1170306A publication Critical patent/GB1170306A/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
    • 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)
  • 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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

1,170,306. Speech analysis. STANDARD TELEPHONES & CABLES Ltd. 16 Nov., 1967, No. 52146/67. Heading G4R. Apparatus measures the average, over a gated period, of the times between successive occurrences of a characteristic in a complex waveform. In a speech analysis system, the time intervals between successive zero-crossings of a band-pass filtered speech waveform are measured using a ramp generator feeding a sample- and-hold circuit. A peak amplitude detector also responds to the filter output to cause the average to be taken of those of these time intervals which end in a fixed period following the beginning of the voicing period of the speech.
GB52146/67A 1964-02-15 1967-11-16 Apparatus for Analysing Complex Waveforms Expired GB1170306A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB51246/67A GB1106762A (en) 1964-02-15 1965-02-15 Improvements in or relating to explosive devices
GB52146/67A GB1170306A (en) 1967-11-16 1967-11-16 Apparatus for Analysing Complex Waveforms
US770690A US3573612A (en) 1967-11-16 1968-10-25 Apparatus for analyzing complex waveforms containing pitch synchronous information
DE19681809296 DE1809296A1 (en) 1966-11-30 1968-11-16 Circuit arrangement for speech recognition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB52146/67A GB1170306A (en) 1967-11-16 1967-11-16 Apparatus for Analysing Complex Waveforms

Publications (1)

Publication Number Publication Date
GB1170306A true GB1170306A (en) 1969-11-12

Family

ID=10462807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52146/67A Expired GB1170306A (en) 1964-02-15 1967-11-16 Apparatus for Analysing Complex Waveforms

Country Status (2)

Country Link
US (1) US3573612A (en)
GB (1) GB1170306A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145864A (en) * 1983-09-01 1985-04-03 King Reginald Alfred Voice recognition

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6492936B1 (en) * 1969-12-19 2002-12-10 The United States Of America As Represented By The Secretary Of The Navy Frequency spectrum analyzer
US3860759A (en) * 1970-09-23 1975-01-14 California Inst Of Techn Seismic system with data compression
US3670107A (en) * 1970-12-14 1972-06-13 Meguer V Kalfaian Word and letter spacing arrangement for human-speech typewriters
IT1014614B (en) * 1974-04-24 1977-04-30 Sits Soc It Telecom Siemens CIRCUIT FOR DETECTING THE PRESENCE OF ACTIVITY IN THE PHONE BAND IN A TELEPHONE JOINT
FR2494017B1 (en) * 1980-11-07 1985-10-25 Thomson Csf METHOD FOR DETECTING THE MELODY FREQUENCY IN A SPEECH SIGNAL AND DEVICE FOR CARRYING OUT SAID METHOD
US4706293A (en) * 1984-08-10 1987-11-10 Minnesota Mining And Manufacturing Company Circuitry for characterizing speech for tamper protected recording
US4783807A (en) * 1984-08-27 1988-11-08 John Marley System and method for sound recognition with feature selection synchronized to voice pitch
EP0280827B1 (en) * 1987-03-05 1993-01-27 International Business Machines Corporation Pitch detection process and speech coder using said process
US6647132B1 (en) * 1999-08-06 2003-11-11 Cognex Technology And Investment Corporation Methods and apparatuses for identifying regions of similar texture in an image

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3335225A (en) * 1964-02-20 1967-08-08 Melpar Inc Formant period tracker
GB1012765A (en) * 1964-03-06 1965-12-08 Standard Telephones Cables Ltd Apparatus for the analysis of waveforms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145864A (en) * 1983-09-01 1985-04-03 King Reginald Alfred Voice recognition

Also Published As

Publication number Publication date
US3573612A (en) 1971-04-06

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