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Re:A music-lover's guide to tinnitus by alok-g on Saturday June 24, 2017 @07:57AM (#14625297)
How to I map db to the volume on a smartphone?
Re:A music-lover's guide to tinnitus by tim333 on Saturday June 24, 2017 @08:19AM (#14625339)
There are apps. I just tried "Decibel Meter" by Xiangyi Liu on my iphone. Free. Seems to work.

Update - just tried it. 90-100db on the tube (Victoria line), 102 when they make announcements, 60db in the park, 25 in my room.