Noise source characteristics in the ISO 362 vehicle pass-by noise test: Literature review

Firefighters' noise exposure: A literature review

AIM  To review the literature about the effects of environmental noise on the hearing ability of firefighters. METHOD  The PubMed and Scielo databases were searched and studies from 2002 to 2012 that included the keywords firefighters, noise, and hearing loss were identified. Initially, 24 studies were selected, but only 10 met the inclusion criteria of investigating the effects of occupation...

Vehicle Cabin Noise Simulation due to High-frequencies Stimulation

In this paper, the acoustic environment in a vehicle cabin under the influence of highfrequencies aerodynamic sources has been studied. Some panels on the windshield, the roof, the doors, the front pillars, and the floor of a vehicle simulated as input source of noise when the car is moving at high speed, i.e. 112 km/h. The status of vehicle cabin in each of these modes has been studied and com...

I. Noise Source: Scream

The Effectiveness of White Noise on Test Anxiety in Elementary Students

This research is aimed at investigating the effect of white noise on elementary students’ anxiety. The research is a semi-experimental study with pretest-posttest design and control group. The population includes all the students of secondary elementary of Bavi city in the first semester of the academic year 2019-20. Out of the mentioned population, 40 students were selected by Multi-stage clus...

Transient Noise Source Localization

Conventional beamforming systems for noise source localization are mostly based on frequency domain calculations. Additionally, narrowband assumptions concerning signal characteristics are often made to simplify the calculations, i.e. to be able to express a single time delay as a sole phase shift in the frequency domain as well. If necessary, a broadband system is then modeled as a composition...