Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Laboratory Complex "Figurative Analysis and Protection of Speech Information in Intelligent Systems" S.V. DVORYANKIN The problem of ensuring the security of interpersonal communications by protecting the audio-visual information accompanying them remains very relevant. One of the effective ways to solve it is seen in the use of intelligent systems with mutual conversion procedures, analysis and processing of audio and video data arrays without losing their informative content, which is confirmed by the increase in the number of publications on this topic in recent years. All this made it necessary to create a laboratory complex on the one hand as a workshop for use in the educational process and on the other as a stand for testing new scientific approaches and solutions being developed and proposed. The main idea, implemented in the complex in the form of basic laboratory work, consists in converting an acoustic speech signal into graphic images of dynamic spectrograms, applying progressive and effective methods of digital image processing and intelligent visual data analysis to the latter, followed by a reverse transition to the waveform of the signal to solve a particular problem of protecting and processing acoustic speech information. The composition of the complex can be refined and expanded taking into account the interests of the trainees, the requirements of the programs of the disciplines and forms of education taught, the results of scientific research. One of the advantages of the proposed complex is the presence of a game component that motivates students to independent research in the subject area, deep mastering of the material and high-quality laboratory work. Keywords: intelligent systems, visual analysis, information protection, speech information, laboratory complex. DOI: 10.25791/pribor.6.2023.1419 Pp. 66-72.