Volume 13 Number 4 December 2023

    
Measuring Acoustics Wave Analysis In Rigid Walls

Ekaterinoslav Sirakov and Hristo Zhivomirov

https://doi.org/10.6025/jes/2023/13/4/91-95

Abstract In this paper, we studied the analysis of acoustic waves and how they move theoretically. This process is applicable inside the rigid walls. The values of sound waves in the cylindrical box are measured, and calculated, and modal frequencies are drawn. The results are presented with graphics and also in table forms. ... Read More


Heuristic-based Dynamic Voltage & Frequency Scaling Algorithm for Fault Tolerant Real-time Systems

Sandra Djosic, Milun Jevtic and Milunka Damnjanovic

https://doi.org/10.6025/jes/2023/13/4/96-102

Abstract In real-time systems, the power consumption of the fault-tolerant values is measured. We look at real-time systems where fault tolerance is reached by running the job affected by the transient fault one more time using time redundancy Power consumption analysis is performed using a heuristic-based dynamic voltage & frequency scaling algorithm, which we developed. The simulation results demonstrate that our... Read More


One-dimensional Signal for Adaptive Linear Prediction

Rumen P. Mironov

https://doi.org/10.6025/jes/2023/13/4/103-111

Abstract A software model of adaptive linear prediction code for the one-dimensional signal is created. The pre-programmed codec is tested on Simulink for MATLAB 6.5. The results of the decoded signal are compared with the results of the real sound signal by calculating the MSE and the SNR.... Read More