Capturing and Transferring of Acoustic Information in a Closed Room via Wireless Acoustic Sensor Network

Recent researches and discoveries in acoustic sensors and acoustic sensor networks provide many opportunities for explorers and engineers to create new sensing systems and to improve the existing ones. There are a lot of applications including noise pollution monitoring, acoustic calibration of closed rooms, search missions, environment monitoring, accident detection etc. But these networks are different from the classical wireless sensor networks because of their characteristics. It is a challenge to combine a low-energy and less complicated protocols for data transfer and processing of acoustic information with the privacy of the data and a secure communication. To find a solution of this issue it is necessary to develop efficient algorithms. The main task of one acoustic sensor node is to detect acoustic signals from different transmission points or in various receiving points and to provide the needed information for an acoustic environment analysis. The aim of the article is to develop a methodology for measuring test audio signals at multiple points in an enclosed space using a wireless acoustic sensor network. The captured test audio signals should be transmitted to a computer (server of the wireless acoustic sensor network) for the purpose of their processing and analysis for determination of the acoustic parameters and the acoustic picture of the closed room.