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Police siren pass by - fast doppler effect (4).
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0:17
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Police siren pass by - fast doppler effect (3).
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0:42
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Police siren pass by - slow doppler effect (2).
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0:18
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Police siren pass by - fast doppler effect (1).
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0:18
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Police siren pass by - fast doppler effect (2).
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0:41
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Police siren pass by - slow doppler effect (1).
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