Re: Underwater latency (not completely OT) ;-)

["samba -" <sambacomet@hotmail.com>]

Blue  Whales  sing in frq ranges  below human hearing and communicate over 
vast distances."Blue whales emit very loud, highly structured, repetitive 
low-frequency sounds that can travel form many miles underwater. They are 
probably the loudest animals alive, louder than a jet engine"

Nat Geo story on Fin whale songs-around 20 hz
"Each note in the song lasts only a second and sounds like a "gentle 
burp," 
said Clark. Then there is a 14-second pause before the fin whale hits the 
next note. The entire song lasts about eight to ten minutes. Only when the 
composition is played at about 60 times its actual speed is the rhythm and 
pitch variation apparent. Blue whale songs can last up to twenty minutes 
with a two-minute interval between notes." 
<http://news.nationalgeographic.com/news/2002/06/0619_020619_TVwhale.html>


fish tapes inc. freq ranges 
http://www.fishecology.org/soniferous/soundposter.htm