I would like to know if there are known risks for hearing or any other possible health issue in case of long usage of ultrasonic (parametric) speakers (see an example) at low volume.
For long usage I ...
I live in an apartment where sometimes neighbors make noise at bedtime.
I have trouble sleeping, any noise, if it isn't a constant noise, bothers me.
So, I started listening to music before bed and it ...
I use noise isolating in ear headphones while working. I am considering instituting "music breaks" to reduce risks related to hearing loss.
A 10-20 minute review of websites haven't really given me ...
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