Vehicle warning system for hearing-impaired person and control method thereof

A warning system for a hearing-impaired person of a vehicle, the warning system comprising:

• a sound sensing unit disposed at a vehicle and configured to sense sound outside of the vehicle;
• a database configured to store characteristic information of a plurality of specific sounds and visual information corresponding to the characteristic information of the specific sounds;
• an output unit configured to output the visual information;
• and
• a control unit configured to:
• determine whether the sensed sound needs to be visualized,
• extract characteristic information of the sound sensed by the sound sensing unit when the sensed sound needs to be visualized,
• determine a type of the sound by comparing the extracted characteristic information with the characteristic information of the plurality of specific sounds stored in the database, and
• output visual information corresponding to the determined type of the sound through the output unit,
• wherein when the control unit determines that the sensed sound needs to be visualized, the control unit is configured to:
• collect the sound a predetermined number of times through the sound sensing unit,
• extract characteristic information of the sound collected the predetermined number of times,
• select a specific number of items of the characteristic information from the extracted characteristic information, and
• compare the selected specific number of items of the characteristic information with the characteristic information of the plurality of specific sounds stored in the database.