0:27
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Truck idling steadily
2:00
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Wind drone, desert, steady and constant
2:31
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Steady insect drone at night with some birds
2:24
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Grinding constant insect drone
2:10
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Chattering insects steady and intense with some birds
1:41
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Grinding constant insect drone
2:32
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Insect drone with bird calls
0:41
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Close and constant cicada drone
0:38
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Truck idling high and constant with a slight dip in tone
2:00
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Mechanical compressor running