Audio Interface Characterists

Telephony -

Line In Use Detector Circuit

DLS -

dsl Saga: A Story of Mass Confusion

Music -

Equally Tempered Scale w/ Note Frequencies
High Noon (the movie) - discussion of its famous song.

Weather -

Weather Station at Arlington, Virginia, USA
     38º 54' 16.1" N, 77º 07' 11.0"

Electric Field Mills

Sonic Anemometer & Wind Vane
     employing a "no wind" speed of sound reference

Misc -

Snake Oil

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