"Noise measurements were made in cinemas during the showing of four films, to establish whether the noise levels from films might pose a risk of damage to hearing. The L Aeq levels for the full playing time of each film were all below 80 dB(A). Noise levels did sometimes exceed 90 dB(A) but this was never for more than a total of two minutes, and was usually for only a few seconds. Repeat L Aeq levels for the same films were shown to vary by 3-4 dB across different cinemas. Based on this limited sample of films and cinemas, there is no evidence that sound levels in cinemas cause permanent damage to hearing."
How to cite this URL:
Ferguson MA, Davis AC, Lovell EA. Cinemas - do they pose a risk to hearing?. Noise Health [serial online] 2000 [cited 2015 Dec 23];2:55-8. Available from:
http://www.noiseandhealth.org/text.asp?2000/2/8/55/31751
I don't think it helps to google things like "movies too loud" because you are going to find negative things without a doubt. It's like typing in "cycling is dangerous", "driving is dangerous", "which foods give you cancer". There is a lot of information out there about everything and anything. The problem is how you use that information because if you take things at face value you'd never do anything ever again. In fact you may as well just live in a padded cell.
The fact of the matter is cinemas run at around 70db-80db average, (in the uk) with occasional peaks that last a few seconds that can go up to 90db. With 10db ear plugs as a precaution you are totally safe. I'd say arguably without ear plugs you are safe, they are just not that loud. IMAX is a different story I've yet to use a meter in there so can't comment.
One thing I will say is don't trust what you read, buy a decibel meter and check the levels for yourselves. All I will say is catching a train/using the subway, HGV driving, doing long car journeys, restaurants, everyday sounds like lawnmowers being used (even if it's not you), shopping malls etc etc, the list is huge. They all run the same decibel figures as an average film, if you live your life worrying you will never do anything, and there is no need at these levels to stick ear plugs in all the time.
The danger levels have always been the real noisy environments such as work which requires muffs, concerts, band rehearsals, loud bars and clubs etc. These definitely without a doubt cause damage because they run well above 90db and well into the 100s.
I've never come out of a movie with ringing ears and I've never heard of people directly relating the onset of T to a visit to the cinema.
I'm not saying there's not a chance it can happen, I just think people go overboard in forums which definitely doesn't help psychologically. I think this is a HUGE problem for people, especially when T onset is new. People read all this doom and gloom and think they'll never leave the house again because they'll damage their ears. It's this kind of thinking that seriously holds people back.