0:18
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Police siren warbles and wails.
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0:08
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Crowd chants "Yes we can" at political rally for presidential candidate Barack Obama.
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0:01
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Two quick police sirens.
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0:11
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Comedic fire alarm - tinkling hollow metal or cowbell.
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0:14
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Emergency ambulance siren, steady pattern, ambulance interior perspective (2).
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0:14
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Emergency ambulance siren, steady pattern, ambulance interior perspective (1).
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0:04
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Emergency ambulance siren, rising and falling loop, ambulance interior perspective (2).
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0:04
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Emergency ambulance siren, rising and falling loop, ambulance interior perspective (1).
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0:07
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Emergency ambulance siren, various abrupt alerts, ambulance interior perspective (2).
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0:07
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Emergency ambulance siren, various abrupt alerts, ambulance interior perspective (1).
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0:02
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Emergency ambulance siren, short descending burst, ambulance interior perspective (2).
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0:02
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Emergency ambulance siren, short descending burst, ambulance interior perspective (1).
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0:05
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Emergency ambulance siren, various short chirps, ambulance interior perspective (2).
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0:05
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Emergency ambulance siren, various short chirps, ambulance interior perspective (1).
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0:04
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Emergency ambulance siren, various short chirps, ambulance interior perspective (2).
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0:04
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Emergency ambulance siren, various short chirps, ambulance interior perspective (1).
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0:05
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Emergency ambulance siren, various blasts, ambulance interior perspective (2).
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0:05
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Emergency ambulance siren, various blasts, ambulance interior perspective (1).
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0:23
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Emergency ambulance siren, various busy blaring, ambulance interior perspective (2).
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0:23
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Emergency ambulance siren, various busy blaring, ambulance interior perspective (1).
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