Thanks for reminding me about this Ken.. Several years ago when a major meteor shower was forcast I got up at 3am to have a look. As luck would have it, the sky was completly clouded over. Anyway I sat outside for a while in the quiet and was amazed to hear what sounded like a meteor go over in a north south direction. I would describe the sound as a low frequency 'drone' with doppler shift. About 2 or 3 seconds duration only.
This started me on a mission with Google lasting about 6 months and a dark and lonely path it was. Ended up learning more about electrophonic bolides, ball lightning, Tesla energy transmission, weather caused earthquakes etc etc. than I really needed to know. I even ended up communication with a bloke in Russia on the subject..