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AU582962B2 - Process for differentiating speech signals from signals of noise-free or noise-affected speech pauses - Google Patents

Process for differentiating speech signals from signals of noise-free or noise-affected speech pauses

Info

Publication number
AU582962B2
AU582962B2 AU72823/87A AU7282387A AU582962B2 AU 582962 B2 AU582962 B2 AU 582962B2 AU 72823/87 A AU72823/87 A AU 72823/87A AU 7282387 A AU7282387 A AU 7282387A AU 582962 B2 AU582962 B2 AU 582962B2
Authority
AU
Australia
Prior art keywords
value
speech
noise
signals
values
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.)
Ceased
Application number
AU72823/87A
Other versions
AU7282387A (en
Inventor
Peter-Grauer Jensen
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of AU7282387A publication Critical patent/AU7282387A/en
Application granted granted Critical
Publication of AU582962B2 publication Critical patent/AU582962B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems
    • H04M3/533—Voice mail systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Noise Elimination (AREA)
  • Telephonic Communication Services (AREA)
  • Digital Magnetic Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

Speech signal-produced peak-values of speech levels and speech signal-produced minimum-values of speech levels are recorded in such a way that, after recording of a peak value or minimum value, this value is gradually reduced or increased until a new peak value exceeds the instantaneous recording threshold or a new minimum value falls below the instantaneous recording threshold. From the relevant current peak-value recording threshold values or minimum-value recording threshold values, a level regulation value is obtained by an adjustable reduction or increase, whereby the two level regulating values are combined together to form a level threshold value.
AU72823/87A 1986-03-18 1987-03-18 Process for differentiating speech signals from signals of noise-free or noise-affected speech pauses Ceased AU582962B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3609066 1986-03-18
DE3609066 1986-03-18

Publications (2)

Publication Number Publication Date
AU7282387A AU7282387A (en) 1987-10-09
AU582962B2 true AU582962B2 (en) 1989-04-13

Family

ID=6296670

Family Applications (1)

Application Number Title Priority Date Filing Date
AU72823/87A Ceased AU582962B2 (en) 1986-03-18 1987-03-18 Process for differentiating speech signals from signals of noise-free or noise-affected speech pauses

Country Status (7)

Country Link
EP (1) EP0238075B1 (en)
JP (1) JPS63500560A (en)
AT (1) ATE66539T1 (en)
AU (1) AU582962B2 (en)
DE (1) DE3772230D1 (en)
ES (1) ES2023836B3 (en)
WO (1) WO1987005734A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9912577D0 (en) * 1999-05-28 1999-07-28 Mitel Corp Method of detecting silence in a packetized voice stream

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052568A (en) * 1976-04-23 1977-10-04 Communications Satellite Corporation Digital voice switch
US4351983A (en) * 1979-03-05 1982-09-28 International Business Machines Corp. Speech detector with variable threshold
US4357491A (en) * 1980-09-16 1982-11-02 Northern Telecom Limited Method of and apparatus for detecting speech in a voice channel signal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449190A (en) * 1982-01-27 1984-05-15 Bell Telephone Laboratories, Incorporated Silence editing speech processor
DE3276732D1 (en) * 1982-04-27 1987-08-13 Philips Nv Speech analysis system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052568A (en) * 1976-04-23 1977-10-04 Communications Satellite Corporation Digital voice switch
US4351983A (en) * 1979-03-05 1982-09-28 International Business Machines Corp. Speech detector with variable threshold
US4357491A (en) * 1980-09-16 1982-11-02 Northern Telecom Limited Method of and apparatus for detecting speech in a voice channel signal

Also Published As

Publication number Publication date
WO1987005734A1 (en) 1987-09-24
ATE66539T1 (en) 1991-09-15
DE3772230D1 (en) 1991-09-26
EP0238075A1 (en) 1987-09-23
JPS63500560A (en) 1988-02-25
AU7282387A (en) 1987-10-09
EP0238075B1 (en) 1991-08-21
JPH0379908B2 (en) 1991-12-20
ES2023836B3 (en) 1992-02-16

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