Open Access

ARTICLE

Frequencies Rotation at High Sound Pressure Levels Toward Low Frequencies

Hadi Negahdari¹, Sirus Javadpour^2,*, Faramarz Moattar³

1 Department of Environmental Engineering, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 Materials Science and Engineering Department, School of Engineering, Shiraz University, Shiraz, Iran
3 Department of Environmental Engineering, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran

* Corresponding Author: Sirus Javadpour. Email: