@Arpiben yes completely true but without real specific medical research, government can not do much; plus this require a lot of time to see the real impact on us so... lastly the sound waves frequency should not be an issue other than may be headache on high/low frequency for people with...

Very interesting topic :) .... @leeperry "those who speak don't know and those who know don't speak" true lol :D this is what forced me to register and post... but nevertheless the thread is rich with useful infos :L3000:... i do work on telecom engineering and on other telecom health related...

Hi all am an audiophile willing to contribute ;)