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Old 05-09-2016, 06:38 AM   #47
Bruce B
Guru
 
Join Date: Jun 2014
Posts: 1,274
In the beginning of this thread there was a link to the logSPL app that I decided to download and play with. It turns your iPad or iPhone into a sound meter and it is reported as accurate...
Anyway, yesterday we drove 200 miles in my Cummins powered Ram and I had the phone on indicating sound levels with the app.
In general, driving at speeds between 0 mph and 70 mph depending upon throttle position, we saw a general range of between 60 dBa and about 80 dBa...
Now I intend to compare those numbers with the sound levels measured on the AT 395 with the Cummins 6.7 on Wednesday.
I'm not sure I fully understand the ins and outs of using decibels for sound measurement but perhaps this will help me build on the understanding...
Bruce
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