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Sci-fi designed atmosphere with machinery or engine, fluttering with steady modulation 1.
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Sci-fi designed atmosphere with dark deep rumbles in outer space or on an alien spaceship.
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Sci-fi designed atmosphere with whistling disconnection noises and very disturbing high-pitched distortion.
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Sci-fi designed atmosphere with whistling ventilation, hypnotic space tone.
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Sci-fi designed atmosphere with high-pitched white noise.
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Sci-fi designed atmosphere in an alien spaceship with fluttering and modulation and loud alarm in a large ...
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Sci-fi designed alien world atmosphere with strange crickets and troubling high-pitched tone.
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Sci-fi designed room tone atmosphere with a massive fan with a tense low rumble, alien world or abandoned ...
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Sci-fi designed room tone atmosphere with a low rumble with subtle disturbing distorted noises, in outer ...
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Sci-fi designed room tone atmosphere with a steady rumble, or abandoned space or outer space.
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Sci-fi designed atmosphere on an alien world in an abandoned space in a nuclear facility with a ...
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Sci-fi designed atmosphere on an alien world in an abandoned space with a dark rumble and subtle distortion.
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Sci-fi designed atmosphere on an alien world with a disquieting rumble in an abandoned space or a ...
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Sci-fi designed atmosphere — alien spaceship fluttering with modulation in a hall, dark tone.
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Sci-fi designed atmosphere — alien spaceship with short oscillation and computer activity in a large ...
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Sci-fi designed atmosphere — alien spaceship fluttering with a soft alarm in large corridor.