Image processing apparatus having a voice control function and control method thereof

An image processing apparatus comprising:

• a voice input receiver configured to receive a voice input of user;
• a signal processor configured to recognize and process the received voice input received through the voice input receiver;
• a buffer configured to store the voice input;
• and
• a controller configured to generate a preset event for activating a voice recognition function in which the received voice input is converted into a command for the image processing apparatus, from an inactivated state and control the signal processor to recognize the voice input stored in the buffer in response to the voice recognition function being activated,
• wherein the controller is further configured to store the received voice input in the buffer in response to the received voice input being input through the voice input receiver while the voice recognition function is in the inactivated state, so that the received voice input is recognized by the signal processor when the voice recognition function is activated and the image processing apparatus is controlled based on the command.