Indeed a review by Konkani and Oakley reveals that ambient noise levels
in typical NICUs can exceed 80 dB SPL .
Exceedance levels ([L.sub.n]) are calculated in addition to [L.sub.Aeq]; specifically, [L.sub.10] is the sound level exceeded 10% of the time, giving an approximate range of peak noise levels, while [L.sub.90] is the sound level exceeded 90% of the time, giving an approximate range of ambient noise levels
. Unfortunately, the material and environmental changes that were originally planned to the hospital ward under study were not fully implemented, which limited the significance of this project's findings regarding the benefit of the intervention.
Ambient noise levels
were measured at different locations selected on the basis of land use such as silence, heavy traffic and residential and commercial zones.
Once ambient noise levels
reach certain amplitude they can possibly cause the hearing threshold for one sound to be raised by the presence of another--the process known as masking (Richardson et al.
Liu, Zheji, "Reducing Compressor Station Ambient Noise Level
by Controlling Compressor Internal Noise Source," 2002 International Pipeline Conference, Sept 29--Oct 3, Calgary, Alberta, Canada.
When I removed the soft earplugs, I found the ambient noise level
was so high I even had less ability to understand the radios and ICS.
In locating a space for a video teleconferencing facility, the most important consideration is the ambient noise level
. Plan a space located at the building's interior.
State land use law allows noise from the proposed facility to increase the existing ambient noise level
by no more than 10 decibels.
She explained that the batching plant operator violated at least two articles of the city's Environment Code, such as the emission of particulate matter; cement mixing on roadsides; and activities that result in ambient noise level
higher than the standard prescribed by law, among others.
* The average ambient noise level
in a tested classroom was 47 dBA.
The JBL Ambient Aware app not only gives the athlete control of the ambient noise level
, but also custom EQ settings to create the perfect sound for your workout.