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#1 |
Sea Lord
![]() Join Date: Sep 2006
Location: Adelaide, South Australia
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Another report stated that it sounded like steel wires being dragged along the hull.
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#2 | |
Old Gang
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#3 | ||
Sea Lord
![]() Join Date: Sep 2006
Location: Adelaide, South Australia
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![]() "Captain, were out of depthcharges, what should we do?" "......Ummmmm, let's throw some dirt at those Jerry mongrels." ![]() |
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#4 |
Seaman
![]() Join Date: Aug 2008
Location: Edmonton, AB
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That 16 kHz sound sounds like the noises I hear when the tv is on or with certain music and sounds on games. It's annoying as hell and no one else seems to notice it but me. I can tell if someone has the tv on two floors down and several rooms over, lol.
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#5 | |||
Old Gang
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#6 | ||
Navy Seal
![]() Join Date: Feb 2005
Location: York - UK
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you put a >20khz tuning fork against a sheet of metal. You can't hear the sound the tuning fork is making, but you can hear the fork bouncing off the metal. It might also be the sub's own harmonic at play. Think of knocking the tuning fork you can't hear against one you can. However, I rather doubt this. Sub's are big bells to ring and I don't think a 120-200dbl ping is enough to do it. To Laboe with steel wire, gravel and a microphone? Quote:
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