In article <35f2eea7.45635052@netnews.worldnet.att.net>, James Meyer <notjimbob@worldnet.att.net> writes >On Fri, 4 Sep 1998 07:49:50 +0100, John Woodgate ><jmw@jmwa.demon.co.uk> wrote: > > >>No, becuase even if your hypothesis were true, you have no way of >>knowing whether the tones started simultaneously or not, so you could >>not determine the significance of any observed time-delay. > > But then.... why do you hear a high frequency "crack" before >you hear the low frequency "rumble" that happens with a lightning >strike? If you're not too close, that is. > The 'crack' is the sound arriving directly from the discharge, while the 'rumble' is reverberant sound that has been reflected from clouds and the ground, which takes time. The spectral content is weighted to low frequencies because the higher ones are absorbed and diffracted to a greater extent. -- Regards, John Woodgate, Phone +44 (0)1268 747839 Fax +44 (0)1268 777124. OOO - Own Opinions Only. You can fool all of the people some of the time, but you can't please some of the people any of the time.
Date: Sun, 6 Sep 1998 17:39:46 +0100
Original Subject: Re: 3-D sound effect