[AnneseeKels]

i feel that this is the best explanation. mile long air shafts with turbines on the other end could sound alot like giant trumpets.
however this also makes me wonder.... did they have the same underground facilities in biblical times??
some interviews talk about the people digging the underground bases coming across previous excavation sites.....
who knows? i suppose we'll learn more tonight!!!

another thought - this phenomenon seems to have been real to some extent, although much of what appears on youtube seems to have been cut and paste previously recorded soundtracks overlaid on newer vids. we have heard from david's sources that some underground bases were subjected to a twenty-fold increase in normal atmospheric pressure. might this alone have accounted for such huge 'trumpet' blasts from emergency ventilation shafts? mark