0:03
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Navy PA announcement. Young man says, "Sonar con target is at 170."
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0:04
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Navy PA announcement. Middle aged man says, "Maintain a heading of 172 at 23 knots."
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0:02
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Navy PA announcement. Middle aged man says, "Aye aye."
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1:59
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Ambiance of underground train, arriving at station, doors opening and closing, train PA
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0:59
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Crowded airport baggage area with announcer speaking over an intercom. Vintage recording.
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