Patent ID: 11170767

Abstract:
Disclosed is a portable device for controlling an external device. The portable device comprises: a first microphone, disposed on one surface of a portable device, for receiving an audio signal including user voice uttered by a user; a second microphone, disposed on the other surface of the portable device opposite to the one surface of the portable device, for receiving the audio signal including the user voice; a signal processing unit for processing the audio signal; a communication unit for communicating with an external device; and a processor which determines the user utterance distance between the portable device and the user on the basis of the audio signal received through the first and second microphones, if it is determined that the user utterance distance is a short distance utterance, controls the signal processing unit to process only the audio signal received through the microphone disposed at a relatively further distance from the user from among the first and second microphones, and controls the communication unit to transmit the processed audio signal to the external device.