Speech-controlled apparatus for preventing false detections of keyword and method of operating the same

摘要

Provided are a voice control device capable of preventing keyword misrecognition and a method for operating the same. According to the present invention, the method comprises the steps of: receiving an audio signal corresponding to a surrounding sound and generating audio stream data; detecting a candidate keyword corresponding to a predefined keyword from the audio stream data and determining a first section corresponding to first audio data in which the candidate keyword is detected from the audio stream data; extracting a first speaker feature vector for the first audio data; extracting a second speaker feature vector for second audio data corresponding to a second section preceding the first section from the audio stream data; and determining whether the keyword is included in the first audio data on the basis of the similarity between the first and second speaker feature vectors and determining whether to perform wake-up.