scholarly journals EXPERIMENTAL INVESTIGATIONS OF THE INFLUENCE OF SCREENS AND PROTECTIVE EQUIPMENT ON THE LEVEL OF ACOUSTIC SIGNAL IN A ROOM WITH GLASS AND METAL PLASTIC

2021 ◽  
Vol 12 (4) ◽  
pp. 117-131
Author(s):  
Volodymyr Astapenia ◽  
Maksym Martseniuk ◽  
Svitlana Shevchenko ◽  
Pavlo Skladannyi ◽  
Yevhen Martseniuk
Keyword(s):  
Acoustic Signal ◽  
Information Leakage ◽  
Public Institutions ◽  
Experimental Investigations ◽  
Acoustic Oscillations ◽  
Acoustic Information ◽  
Information Activity ◽  
Technical Intelligence ◽  
Constant Change ◽  
Information Circulation

In the digital stage of world development, information is constantly expanding its facets. That is why the exchange of information is a leading component of constant change in life. Although humanity is gradually moving to the use of electronic technology, acoustic information still plays a key role in information circulation. This applies to official communication in public institutions up to the highest level, business contacts in commercial structures and private communication between people. The process of transmitting information in acoustic form has dangerous consequences. The use of appropriate devices, such as directional acoustic microphones or technical intelligence acoustic antennas, which may be outside the scope of the information activity, makes it possible to obtain unauthorized information that should not reach third parties. Therefore, the task of detecting and protecting information leakage channels, including acoustic ones, is gaining a new degree of importance every day. The protection of the premises or building, where acoustic information regularly circulates, provides a set of organizational and technical measures and means of protection of information circulation, taking into account the peculiarities of the location and arrangement of the object. This study involves the study of the dependence of the level of the acoustic signal on ways to prevent leakage of information through the acoustic channel, which includes vibration noise by means of technical protection and coverage of improvised materials (shielding) of enclosing structures of information activities (OID). The experiment determines the degree of influence of density, sound-absorbing properties of materials and their combinations on acoustic oscillations, the source of which is in the OID. The object of the study was a basic room, where the enclosing structures are walls with windows and doors, ceiling and floor. It is also worth noting that the acoustic signal measurements were not performed in complete silence, which directly affected the accuracy of the results. This step was taken in order to best reproduce the conditions in which criminals often work.

scholarly journals EXPERIMENTAL STUDIES OF THE STAND OF SIMULATION MODELING OF LASER MICROPHONE OPERATION FOR REMOVAL OF ACOUSTIC INFORMATION

2021 ◽  
Vol 2 (14) ◽  
pp. 131-147
Author(s):  
Maksym Martseniuk ◽  
Pavlo Skladannyi ◽  
Volodymyr Astapenya
Keyword(s):  
Acoustic Signal ◽  
Membrane Surface ◽  
Experimental Studies ◽  
Information Leakage ◽  
Research Process ◽  
Technical Intelligence ◽  
Variable Nature ◽  
Signal Amplifier ◽  
Management And Development ◽  
Types Of Information

He who possesses information owns the world. This statement is becoming more relevant every day. It is information that has become a tool for modern management and development. Therefore, the role of information technology is also constantly growing along with the risk of their malicious use. Attackers use all possible methods and means of technical intelligence to use potentially possible and create new types of information leakage channels to intercept it. object of information activities. Such oscillations caused by a certain speech (acoustic) signal can be intercepted by means of long-range intelligence. Most often, a laser microphone is used as such. The essence of its action is to emit a laser on the surface of the selected OID, which circulates a speech signal that creates sound vibrations on this surface. The movement of the surface leads to the modulation of the wave by phase, which is manifested in the variable nature of the sound signal Doppler shift of the frequency of the received signal. Often, such a surface is the glass of the windows, which reflects the beam to the receiver, to which is connected a detector that can reproduce the sound from the OID. This study aims to study the dependence of the laser microphone on such factors as: the location of the radiation source and the beam receiver from the membrane; membrane surface material; receiver type; materials of fencing constructions OID. The goal is to create a stand to demonstrate the operation of a laser microphone. The research process is carried out on a smaller scale, which is why an improvised room in the form of a cardboard box was chosen as the OID. Available tools were used to reproduce the operation of the laser microphone, so a laser pointer was chosen as the illuminator, and devices such as a solar panel, a light sensor and a signal amplifier microphone were used as the receiver. The study of the influence of selected factors was performed by measuring the voltage and volume of the acoustic signal using a multimeter and a certified program on the tablet, respectively.

The Politics of Neoliberal Rituals

2021 ◽  
pp. 306-324
Author(s):  
Anna Leander
Keyword(s):  
Crucial Role ◽  
Public Institutions ◽  
Trade Fair ◽  
Political Performance ◽  
The Core ◽  
Enterprise Technology ◽  
Constant Change ◽  
The Future ◽  
Decentralized Governance

Exploring the similarities between the Future of Enterprise Technology trade fairs and the ITU AI for Food Summit, this chapter focuses on trade fairs as spaces of political performance. It explores how trade fairs do politics and what the implications of this are. The chapter begins by showing that trade fairs play a crucial role in generating and enshrining the legitimacy and authority of decentralized, distributed market orders that are in constant change. The trade fairs are rituals where a “tournament of values” is performed through which the hierarchies of this order are negotiated. This helps manage but also enshrine the uncertainties associated with decentralized governance. Second, as ritual performances more generally, trade fairs engage the sacred and magical and the affective and embodied to anchor order not only broadly but deeply and individually. Finally, the chapter discusses the quality of the ordering performed in trade fairs, suggesting that what is performed in the trade fair is a form of institutionalized liminality. However, and contrary to the hopes Victor Turner placed in institutionalized liminality, here it is far from progressive. It builds inegalitarian instability into our societies. Precisely because of this, tending to trade fairs is of fundamental import. The trade fair form has become pervasive in governance, including when it involves public institutions (as epitomized by the AI for Good Summit). Understanding trade fairs as ritual political performance at the core of neoliberalism is therefore a condition intervening politically and for realizing the urgency of imagining alternative forms of governing.

scholarly journals METHODS FOR ASSESSMENT AND FORECASTING OF ELECTROMAGNETIC RADIATION LEVELS IN URBAN ENVIRONMENTS

2021 ◽  
Vol 11 (1) ◽  
pp. 24-27
Author(s):  
Denys Bakhtiiarov ◽  
Oleksandr Lavrynenko ◽  
Nataliia Lishchynovska ◽  
Ivan Basiuk ◽  
Tetiana Prykhodko
Keyword(s):  
Electromagnetic Radiation ◽  
Radio Channel ◽  
Technical Information ◽  
Information Leakage ◽  
Urban Environments ◽  
Radio Interference ◽  
Structural Diagram ◽  
Electromagnetic Environment ◽  
Acoustic Information

Methods for synthesis a structural diagram of the processes for detecting and locating technical information leakage channels are analysed. Software for defining a controlled room zone was also presented. A proprietary approach to search the electromagnetic environment under radio interference has been developed to detect devices for unauthorized control of acoustic information using microphones and transmission of this information using a radio channel.

scholarly journals Directions for the development of the existing concept of assessing the relevance of information leakage through technical channels in the current trends of improving technical intelligence

2021 ◽  
Vol 31 (1) ◽  
pp. 74-83
Author(s):  
S. V. Skryl ◽  
M. P. Sychev ◽  
A. V. Mazin ◽  
T. V. Meshcheryakova ◽  
O. A. Gulyaev ◽  
...  
Keyword(s):  
Electromagnetic Radiation ◽  
Information Leakage ◽  
Aviation Industry ◽  
Aircraft Industry ◽  
Technical Intelligence ◽  
Current Trends ◽  
Manufactured Products ◽  
Electromagnetic Emissions ◽  
Production Technologies ◽  
Practical Implications

Problem statement. The rationale for confidentiality requirements in the process of manufacturing and production testing of aviation equipment samples. There is a need to assess the effectiveness of measures to prevent information leakage through the channels of incidental electromagnetic radiation and interference and vibroacoustic channels. This situation is characteristic both for the technological equipment of the aviation industry enterprises and the equipment of the produced aircraft models.Objective. The rationale for developing the existing concept of assessing the relevance of the threats of information leakage through technical channels in the current trends of improving technical reconnaissance.Results. The article presents the analysis results of the existing regulatory and existing base of FSTEC Russia for sufficient assessment of measures to prevent information leakage through the channels of incidental electromagnetic radiation and interference and vibroacoustic channels at the enterprises of the aircraft industry in the implementation of production technologies and testing of manufactured products.Practical implications. The substantiated directions of improving the methodological basis for determining the current threats can be used in the development of methods and models for assessment of measures to prevent information leakage through the channels of electromagnetic emissions and interference and vibroacoustic channels at aircraft industry enterprises in the implementation of production technologies and testing of manufactured products.

Luisteren is Gokken

1986 ◽  
Vol 25 ◽  
pp. 28-36
Author(s):  
J.C.T. Ringeling
Keyword(s):  
Foreign Language ◽  
Acoustic Signal ◽  
Acoustic Information ◽  
Listening Proficiency ◽  
Listening Strategies ◽  
Adequate Communication

This article describes global listening strategies as a promising approach to perception. In a number of demonstrations it is shown that global specification of the acoustic signal and a global perceptual approach may be quite sufficient for adequate communication, depending on the nature of the subtle interplay between speaker and hearer. The author emphasizes that it is this interplay which eventually determines the relative contributions of acoustic information and linguistic expectancy to the process of communication. Listening proficiency in a foreign language is also discussed in this context.

CHARACTERISTICS AND CLASSIFICATION OF ACOUSTIC INFORMATION LEAKAGE THROUGH TECHNICAL CHANNELS

2019 ◽  
Vol 11 (4) ◽  
pp. 35-40
Author(s):  
Владимир Зольников ◽  
Vladimir Zolnikov ◽  
Александр Фомичев ◽  
Aleksandr Fomichev
Keyword(s):  
Information Leakage ◽  
Acoustic Information

Acoustic Cues to Place of Articulation and the McGurk Effect

1997 ◽  
Vol 40 (3) ◽  
pp. 646-665 ◽  
Author(s):  
Kerry P. Green ◽  
Linda W. Norrix
Keyword(s):  
Acoustic Signal ◽  
Simultaneous Presentation ◽  
Mcgurk Effect ◽  
Acoustic Cues ◽  
Dynamic Information ◽  
Acoustic Information ◽  
Place Of Articulation ◽  
Vowel Context ◽  
Perceptual Salience ◽  
Low Pass

The McGurk effect demonstrates that the perceived place of articulation of an auditory consonant (such as /bi/) can be influenced by the simultaneous presentation of a videotape of a talker saying a conflicting consonant such as /gi/. Usually, such a presentation is perceived by observers as “di” or “ð” (known as fusion responses). The reverse pairing (auditory /gi/ paired with a visual /bi/) results in “bgi” percepts. These are known as combination responses. In the current study, three experiments examined how acoustic information about place of articulation contained within the release bursts, aspiration, and voiced formants and transitions of a consonant contribute to the McGurk effect. In the first experiment, the release bursts and aspiration were deleted from the acoustic signal. This manipulation resulted in a smaller impact on McGurk “fusion” tokens relative to the McGurk “combination” tokens. This asymmetry may be related to the perceptual salience of the release bursts and aspiration for velar compared to the bilabial tokens used in this experiment and their importance for obtaining the combination percept. In Experiment 2, the release bursts and aspiration were increased in amplitude. Results revealed either no effect or a stronger McGurk effect for the manipulated tokens than for the intact tokens. This finding suggests that the McGurk effect for fusion tokens does not occur simply because the release bursts and aspiration are weak. In Experiment 3, low-pass filtering the second and higher formants and transitions was associated with the largest overall impact on the McGurk effect. This suggests that dynamic information contained within these formants is of primary importance in obtaining the McGurk effect. These cues are, however, context-dependent and vary as a function of talker and vowel context.

scholarly journals Acoustic wave response to groove arrays in model ears

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0260020
Author(s):  
Brian W. Keeley ◽  
Annika T. H. Keeley
Keyword(s):  
Acoustic Wave ◽  
Acoustic Signal ◽  
Signal Strength ◽  
Acoustic Signals ◽  
Total Amplitude ◽  
Acoustic Information ◽  
Multiple Factors ◽  
Frequency Responses ◽  
Spectral Components ◽  
Smooth Model

Many mammals and some owls have parallel grooved structures associated with auditory structures that may be exploiting acoustic products generated by groove arrays. To test the hypothesis that morphological structures in the ear can manipulate acoustic information, we expose a series of similar-sized models with and without groove arrays to different sounds in identical conditions and compare their amplitude and frequency responses. We demonstrate how two different acoustic signals are uniquely influenced by the models. Depending on multiple factors (i.e., array characteristics, acoustic signal used, and distance from source) the presence of an array can increase the signal strength of select spectral components when compared to a model with no array. With few exceptions, the models with arrays increased the total amplitude of acoustic signals over that of the smooth model at all distances we tested up to 160 centimeters. We conclude that the ability to uniquely alter the signal based on an array’s characteristics is evolutionarily beneficial and supports the concept that different species have different array configurations associated with their biological needs.

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