WO2016020511A3 - Method for reducing the comprehensibility of speech signals, and separating component for influencing sound transmission - Google Patents

Method for reducing the comprehensibility of speech signals, and separating component for influencing sound transmission Download PDF

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Publication number
WO2016020511A3
WO2016020511A3 PCT/EP2015/068222 EP2015068222W WO2016020511A3 WO 2016020511 A3 WO2016020511 A3 WO 2016020511A3 EP 2015068222 W EP2015068222 W EP 2015068222W WO 2016020511 A3 WO2016020511 A3 WO 2016020511A3
Authority
WO
WIPO (PCT)
Prior art keywords
speech signal
sound
separating component
masking sound
actuators
Prior art date
Application number
PCT/EP2015/068222
Other languages
German (de)
French (fr)
Other versions
WO2016020511A2 (en
Inventor
Philip Leistner
Horst Drotleff
Andreas Liebl
Xiaoru Zhou
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
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 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
Priority to EP15750979.5A priority Critical patent/EP3178184B1/en
Publication of WO2016020511A2 publication Critical patent/WO2016020511A2/en
Publication of WO2016020511A3 publication Critical patent/WO2016020511A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
    • H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/45—Jamming having variable characteristics characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/12—Jamming or countermeasure used for a particular application for acoustic communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Transmitters (AREA)

Abstract

The invention relates to a method for reducing the comprehensibility of a speech signal, involving the following steps: a) detecting the amplitude, variation over time, and frequency of the speech signal (8); b) generating a masking sound (9) which is dependent on the amplitude, variation over time, and frequency of the speech signal (8) in such a way that an incomprehensible superimposed sound (12) is created by superimposing the masking sound (9) on the speech signal (8), said superimposed sound (12) not being significantly louder than the speech signal, the masking sound (9) being generated in a randomly changing manner, and the speech signal (8) being split into intervals, characterized in that the length of the intervals is randomly modified according to a randomization function. The invention also relates to a separating component for separating a room (2) from a room environment (3) using sensors (4), actuators (5) and a signal processing unit (6) in order to influence sound transmission, characterized in that the separating component (1) includes the following parts: sensors (4) for detecting the speech signals (8) from the room (2); actuators (5) for generating a masking sound that is dependent on the amplitude, variation over time, and frequency of the speech signal (8); the sensors (4) and the actuators (5) being located at a distance from one another so that the speech signal (8) has a certain propagation time until the masking sound (9) is superimposed thereupon in order to take into account propagation times of the speech signal (8) in the separating component (1).
PCT/EP2015/068222 2014-08-08 2015-08-07 Method for reducing the comprehensibility of speech signals, and separating component for influencing sound transmission WO2016020511A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15750979.5A EP3178184B1 (en) 2014-08-08 2015-08-07 Separating component for influencing sound transmission

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014111365.9 2014-08-08
DE102014111365.9A DE102014111365A1 (en) 2014-08-08 2014-08-08 Method for reducing the intelligibility of speech signals and separating component for influencing the sound transmission

Publications (2)

Publication Number Publication Date
WO2016020511A2 WO2016020511A2 (en) 2016-02-11
WO2016020511A3 true WO2016020511A3 (en) 2016-04-07

Family

ID=53879488

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/068222 WO2016020511A2 (en) 2014-08-08 2015-08-07 Method for reducing the comprehensibility of speech signals, and separating component for influencing sound transmission

Country Status (3)

Country Link
EP (1) EP3178184B1 (en)
DE (1) DE102014111365A1 (en)
WO (1) WO2016020511A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10134379B2 (en) 2016-03-01 2018-11-20 Guardian Glass, LLC Acoustic wall assembly having double-wall configuration and passive noise-disruptive properties, and/or method of making and/or using the same
US20170256251A1 (en) * 2016-03-01 2017-09-07 Guardian Industries Corp. Acoustic wall assembly having double-wall configuration and active noise-disruptive properties, and/or method of making and/or using the same
US10354638B2 (en) 2016-03-01 2019-07-16 Guardian Glass, LLC Acoustic wall assembly having active noise-disruptive properties, and/or method of making and/or using the same
US20180268840A1 (en) * 2017-03-15 2018-09-20 Guardian Glass, LLC Speech privacy system and/or associated method
US10373626B2 (en) 2017-03-15 2019-08-06 Guardian Glass, LLC Speech privacy system and/or associated method
US10304473B2 (en) 2017-03-15 2019-05-28 Guardian Glass, LLC Speech privacy system and/or associated method
US10726855B2 (en) 2017-03-15 2020-07-28 Guardian Glass, Llc. Speech privacy system and/or associated method
CN114474393B (en) * 2021-12-31 2024-01-19 三一汽车制造有限公司 Stock bin level monitoring method and device and stirring station

Citations (7)

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US3213199A (en) * 1962-01-02 1965-10-19 Bissett Berman Corp System for masking information
US5834647A (en) * 1994-10-20 1998-11-10 Comptoir De La Technologie Active device for attenuating the sound intensity
US20030002687A1 (en) * 1999-11-16 2003-01-02 Andreas Raptopoulos Apparatus for acoustically improving an environment and related method
WO2004107806A1 (en) * 2003-06-02 2004-12-09 Feonic Plc Audio system
US20050065778A1 (en) * 2003-09-24 2005-03-24 Mastrianni Steven J. Secure speech
WO2006076217A2 (en) * 2005-01-10 2006-07-20 Herman Miller, Inc. Method and apparatus of overlapping and summing speech for an output that disrupts speech
US20090175484A1 (en) * 2008-01-07 2009-07-09 Stephen Saint Vincent Embedded audio system in distributed acoustic sources

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826171C1 (en) 1998-06-13 1999-10-28 Daimler Chrysler Ag Active noise damping method for window e.g. for automobile window
CA2461148A1 (en) * 2004-01-27 2005-07-27 Rafik Goubran Adaptive sound scrambling system and method
DE102005044448B3 (en) 2005-09-09 2006-12-21 Universität Stuttgart Thin walled structure active/passive vibration control device, e.g. for disk of motor vehicle, has electromechanical transducer initiating forces into multi layer structure, where structure and transducer are translucent or transparent
US8045725B2 (en) * 2009-04-16 2011-10-25 GM Global Technology Operations LLC Vehicle interior active noise cancellation
US8972251B2 (en) * 2011-06-07 2015-03-03 Qualcomm Incorporated Generating a masking signal on an electronic device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213199A (en) * 1962-01-02 1965-10-19 Bissett Berman Corp System for masking information
US5834647A (en) * 1994-10-20 1998-11-10 Comptoir De La Technologie Active device for attenuating the sound intensity
US20030002687A1 (en) * 1999-11-16 2003-01-02 Andreas Raptopoulos Apparatus for acoustically improving an environment and related method
WO2004107806A1 (en) * 2003-06-02 2004-12-09 Feonic Plc Audio system
US20050065778A1 (en) * 2003-09-24 2005-03-24 Mastrianni Steven J. Secure speech
WO2006076217A2 (en) * 2005-01-10 2006-07-20 Herman Miller, Inc. Method and apparatus of overlapping and summing speech for an output that disrupts speech
US20090175484A1 (en) * 2008-01-07 2009-07-09 Stephen Saint Vincent Embedded audio system in distributed acoustic sources

Also Published As

Publication number Publication date
WO2016020511A2 (en) 2016-02-11
EP3178184A2 (en) 2017-06-14
EP3178184B1 (en) 2021-04-28
DE102014111365A1 (en) 2016-02-11

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