: pp.17-22
Lviv Politechnic National University
Lviv Polytechnic National University, Ukraine

The authors investigated the effect of changes in the acoustic signal propagation speed and the accuracy of sensor positioning on the accuracy of sound source localization. The mean absolute error grows with the displacement of the microphones relative to the nominal coordinates (X, Y). The same trend is observed with an increase in the actual acoustic signal velocity deviation from the velocity under normal environmental conditions.

The authors propose two ways to reduce the error caused by these factors. The first method is to introduce a correction factor for the speed of the acoustic signal. The second method is to reduce the distance between the system's sensors. This makes it possible to place them more accurately relative to each other

  1. J. Stachurski, L. Netsch, R. Cole, “Sound source localization for video surveillance camera”, 10th IEEE International Conference on Advanced Video and Signal Based Surveillance, 93–98, 2013. Available:
  2. V. Behar, H. Kabakchiev, I. Garvanov, “Sound source localization in a security system using a microphone array”, in Second International Conference on Telecom- munications and Remote Sensing, Netherlands, 2013. Available: source_localization_in_a_security_system_using_a_micro phone_array.
  3. O. Zavdy, L. Fostick, N. Fink, “The effect of hearing aids on sound localization in mild unilateral conductive hearing loss”, Journal of the American Academy of Audiology, 2022. Available: 1889-6578.
  4. S. I. Artemuk, I. P. Mykytyn, “Methods of determining the coordinates of the acoustic signal sourc”, Bulletin ofCherksy State Technological University, No. 3,    59–72, 2022. Available: 2022.260586.
  5. S. I. Artemuk, I. P. Mykytyn, “System for determining the coordinates of the acoustic signal source based on the difference-time method and machine learning methods”, Measuring and computing devices in technological pro- cesses, No. 3, 7–18, 2023. Available: 10.31891/2219-9365-2023-75.
  6. M. Uradziński, M. Bakuła, “Achieving centimeters-level GPS positioning accuracy using a smartphone for mapping applications”, Remote Sensing and Spatial Information Sciences, Vols. XLVIII-1/W1-2023, 525– 529, 2023. Available: archives-XLVIII-1-W1-2023-525-2023.
  7. K. Elglmady, O. Terra, H. Hussein, M. Medhat, “Calibration of laser distance meter using Opto-Electronic oscillator”, Results in Optics, Vol. 9, 2022. Available:
  8. L. E. Kinsler, A. R. Frey, A. B. Coppens, J. V. Sanders, Fundamentals of Acoustics, New York: John Wiley & Sons., 2000. Available: 37532940/Fundamentals_of_Acoustics_L_Kinsler.
  9. L. Crovini, A. Actis, G. Coggiola, A. Mangano, “Accurate thermometry by means of industrial platinum resistance thermometers”, Measurement, Vol. 10, No. 1, 31–38, 1992. Available: