ERJ-145 acceptable decibel level?
#17
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Where were you sitting, and what phase of flight was the 115db reading? I agree that's very high, approaching pain threshold, but having spent more than my fair share of time on the JungleJet, I never found it to be remarkably noisy.
#18
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#19
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#21
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Jet engines are loud. If you're sensitive to the noise, the Bose QC35 is a particularly effective solution.
Though I seriously question the high end reading on that iPhone.
Though I seriously question the high end reading on that iPhone.
#22
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#23
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I disagree... While my preferred seats on the 145 are 18A/D when I wind up in 1A it's almost frighteningly quiet as long as you aren't doing sonethiso like a rapid descent. Given the aft-miubted engines I'd expect that the further back the more engine noise you pick up.
#24
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For the OP, I work in an industry which requires very expensive equipment with yearly certification. Plenty of apps out there, but aren't certified. If some app on iPhone even remotely matched what the multi thousand dollar equipment did, these vendors would be out of business. I trust some app about as much as I trust FB ensuring my privacy.
#25
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It doesn't look like any of the studies referenced relate directly to the ERJ-145, but all aircraft manufacturers measure cabin sound to ensure OSHA compliance, and it's also notable that OSHA and the FAA have received a grand total of 2 noise-related complaints in the last 5 years.
It's possible that there was a mechanical issue that increased the noise level, but it's more likely that your iPhone app was just inaccurate (and there are a number of reasons why a normal noise level would cause more discomfort than usual).
Last edited by Sykes; Feb 4, 2019 at 11:07 am
#26
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i May be wrong but I believe that sound is the cabin pressurization system at work.
#27
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That is definately an un-weighted spectrum. It’s loud, but not dangerously so.
Also phone apps are only suitable for measuring relative volume, not absolute volume.
Also phone apps are only suitable for measuring relative volume, not absolute volume.
#28
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OSHA's permissible levels are set for 8-hour exposure, day after day. I wouldn't want to spend 4 hours riding in the back of an E-145, to be sure.
#29
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I flew on a longer RJ145 flight a little over a year ago that I found uncomfortably loud enough that I also took our my phone and checked the SPL level and snapped a screen shot. My phone showed around 91-92 dB pretty consistently. It may not be a precise measurement, but I found it uncomfortably loud and my phone agreed that it was loud. I was in seat 18A on an ExpressJet UAX flight.
#30
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For kicks I downloaded the app and played with high db on both my new phone and wife’s old phone. I woke my kids with the highest level at 95.7, and the dogs as well. $20k system that will wake the neighborhood if I choose. At almost non existent low volume a simple breath into the phone raised the level to 106. So give me some certified true test data.