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Morse code, letter, "e"
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Morse code, letter "g"
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Morse code, "good job"
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Morse code, "good bye"
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Morse code, "erase"
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Morse code, emergency sos, twice
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Machine communication beeps.
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Transmission distortion, signal, ascend and descend
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Mid pitch tone quickly modulating with digital static in the background.
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Modulated vocal "The red light of death"