GB2434876B - Audio signal discriminator - Google Patents

Audio signal discriminator

Info

Publication number
GB2434876B
GB2434876B GB0602032A GB0602032A GB2434876B GB 2434876 B GB2434876 B GB 2434876B GB 0602032 A GB0602032 A GB 0602032A GB 0602032 A GB0602032 A GB 0602032A GB 2434876 B GB2434876 B GB 2434876B
Authority
GB
United Kingdom
Prior art keywords
audio signal
signal discriminator
discriminator
audio
signal
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 - Fee Related
Application number
GB0602032A
Other versions
GB2434876A (en
GB0602032D0 (en
Inventor
Julian Whiffen
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.)
Thales Holdings UK PLC
Original Assignee
Thales Holdings UK 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
Application filed by Thales Holdings UK PLC filed Critical Thales Holdings UK PLC
Priority to GB0602032A priority Critical patent/GB2434876B/en
Publication of GB0602032D0 publication Critical patent/GB0602032D0/en
Publication of GB2434876A publication Critical patent/GB2434876A/en
Application granted granted Critical
Publication of GB2434876B publication Critical patent/GB2434876B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Burglar Alarm Systems (AREA)
GB0602032A 2006-02-01 2006-02-01 Audio signal discriminator Expired - Fee Related GB2434876B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0602032A GB2434876B (en) 2006-02-01 2006-02-01 Audio signal discriminator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0602032A GB2434876B (en) 2006-02-01 2006-02-01 Audio signal discriminator

Publications (3)

Publication Number Publication Date
GB0602032D0 GB0602032D0 (en) 2006-03-15
GB2434876A GB2434876A (en) 2007-08-08
GB2434876B true GB2434876B (en) 2010-10-27

Family

ID=36100853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0602032A Expired - Fee Related GB2434876B (en) 2006-02-01 2006-02-01 Audio signal discriminator

Country Status (1)

Country Link
GB (1) GB2434876B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112897262A (en) * 2021-02-26 2021-06-04 浙江理工大学 Elevator running state evaluation system and method based on sound feature extraction

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233390A1 (en) * 1986-02-14 1987-08-26 Automated Security (Holdings) Limited Method and apparatus for discriminating sounds due to the breakage of glass
GB2234078A (en) * 1989-05-18 1991-01-23 Medical Res Council Analysis of waveforms
EP0485315A2 (en) * 1990-11-05 1992-05-13 International Business Machines Corporation Method and apparatus for speech analysis and speech recognition
WO1997009701A1 (en) * 1995-09-01 1997-03-13 Digital Security Controls Ltd. Glass break sensor
GB2306649A (en) * 1993-12-01 1997-05-07 Visonic Ltd Glass breakage detector
EP1293961A1 (en) * 1998-03-13 2003-03-19 LEONHARD, Frank Uldall A signal processing method to analyse transients of a speech signal
US20050004797A1 (en) * 2003-05-02 2005-01-06 Robert Azencott Method for identifying specific sounds

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233390A1 (en) * 1986-02-14 1987-08-26 Automated Security (Holdings) Limited Method and apparatus for discriminating sounds due to the breakage of glass
GB2234078A (en) * 1989-05-18 1991-01-23 Medical Res Council Analysis of waveforms
EP0485315A2 (en) * 1990-11-05 1992-05-13 International Business Machines Corporation Method and apparatus for speech analysis and speech recognition
GB2306649A (en) * 1993-12-01 1997-05-07 Visonic Ltd Glass breakage detector
WO1997009701A1 (en) * 1995-09-01 1997-03-13 Digital Security Controls Ltd. Glass break sensor
EP1293961A1 (en) * 1998-03-13 2003-03-19 LEONHARD, Frank Uldall A signal processing method to analyse transients of a speech signal
US20050004797A1 (en) * 2003-05-02 2005-01-06 Robert Azencott Method for identifying specific sounds

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"The MathWorks: Data Acquisition Toolbox 2.8.1", downloaded from: http://www.mathworks.com/products/daq/demos.html?file=/products/demos/compiler/audio_analysis/index.html, 24th May 2006. *
D. COURTNEY, "Introduction to Spectrum Analysis", downloaded from: http://chandrakantha.com/articles/spectrum/spectrum.html, 24th May 2006; *

Also Published As

Publication number Publication date
GB2434876A (en) 2007-08-08
GB0602032D0 (en) 2006-03-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20210201