To begin with, the Momentum Free is not very loud - despite the 118 dB rated maximum sound pressure
level, the peak volume is discernibly low in comparison to other in-ear headphones.
For example our 1MW QAC 1250 generator has a maximum sound pressure
level (LPA) of only 67 dB(A) making it ideal for residential and quiet applications.
If the upstream mass injection operates at a frequency different from the frequency of the dominant resonance (which has the maximum sound pressure
level), the large-scale vortices in the cavity shear layer could be broken up into a smaller length scale.
Maximum sound pressure
level measurement methodology.
These are now the maximum sound pressure
levels that must be maintained.
Recreational boats fitted with inboard or stern drive engines without integral exhaust, jet skis and outboard engines as well as stern drive engines with integral exhaust must be designed, built and assembled so that noise emissions do not exceed the current limit values of level 67 of maximum sound pressure
Total acoustic energy (TAE) and maximum sound pressure
level (SPL), and chorus duration and maximum SPL, were positively and significantly correlated for all sites and seasons (Table 1).
This was the maximum sound pressure
level that could be reached with the available apparatus.
When processing 3 mm long LDPE pellets with a diameter of 3 mm, the maximum sound pressure
level is 85 dBA.
Occupational exposure limits specify the maximum sound pressure
levels and exposure times to which nearly all workers may be repeatedly exposed without adverse effect on their ability to hear and understand normal speech.
For governed tools, the maximum sound pressure
level is usually at peak horsepower.