S.V. Perelygin − Ph.D. (Eng.), 

Audiovisual Systems and Technologies Department

Saint-Petersburg State University of Film and Television (Saint-Petersburg, Russia)

E-mail: sergey.perelygin@gmail.com

M.B. Stolbov − Ph.D. (Eng.), Associate Professor, 

Information Technologies and Programming Faculty,

ITMO University (Saint-Petersburg, Russia)

The work is devoted to the issue of increasing the efficiency of acoustic information acquisition using microphone arrays in the presence of coherent noise and an isotropic noise field. An increase in the efficiency of speech extraction can be achieved by forming a beampattern of the microphone arrays taking into account information about the noise of the environment. The main attention is paid to the spatial characteristics of microphone arrays in the low-frequency band. It is shown that the application of the principle of Minimum Variance Distortionless Response allows one to suppress coherent interference and also increase the spatial selectivity of the microphone array in the low-frequency band. The results may be useful for improving the means of acoustic information capture based on microphone arrays.

Perelygin S.V., Stolbov M.B. Forming the spatial characteristics of dual-microphone arrays based on a priori information. Radiotekhnika. 2020. V. 84. № 8(16). P. 37−49. DOI: 10.18127/j00338486-202008(16)-05 (In Russian

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