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 of operating the same. The method may include receiving an audio signal corresponding to ambient 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 the first audio data from which the candidate keyword is detected in 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 based on the similarity between the first speaker feature vector and the second speaker feature vector, and determining whether to wake up.