So at 85 dB 8 hours you can get hearing damage. Most of us agree that standard is high for people with damaged ears and we say 4 hours can cause hearing damage.
It seems like some people that went to a noisy bar for a couple of hours. Maybe the music hovering around 85 db has had spikes.
So in case of the person that had a permanent increase did that also associate with hearing loss too.
It doesn't make sense if there was no change in your hearing after 2 hours of 85 dB that it can give a permanent increase in tinnitus.
It seems like some people that went to a noisy bar for a couple of hours. Maybe the music hovering around 85 db has had spikes.
So in case of the person that had a permanent increase did that also associate with hearing loss too.
It doesn't make sense if there was no change in your hearing after 2 hours of 85 dB that it can give a permanent increase in tinnitus.