On February 23, 2018 9:32:20 PM HST, Ralf Mardorf <ralf.mardorf@xxxxxxxxxxxxx> wrote: > On Fri, 23 Feb 2018 16:56:51 -1000, David W. Jones wrote: > >Yes, I understand that 4-foot thick solid stone walls are effective > >for that purpose ;) > > German WWII high-rise bunker provide very well sound reduction by the > walls-ceiling-floor combination, but unless you don't want to die from > a CO intoxication, the acoustic pitfalls are the ventilation shafts. The building that inspired my reference was that of a private home in Sacramento, CA, that had solid stone walls that thick. But it had windows and doors and was only a single floor, so much better ventilated than a bunker! -- David W. Jones gnome@xxxxxxxxxxxxx authenticity, honesty, community http://dancingtreefrog.com Sent from my Android device with F/LOSS K-9 Mail. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
