The invention discloses a voice wake-up method and
system. The method comprises the steps of step 1) acquiring input real-time audio
stream data, detecting the input real-time audio
stream data by using a voice detection
algorithm, if
voice data is found, starting a wake-up word detection
algorithm, otherwise, stopping the wake-up word detection
algorithm, and continuing to detect; step 2) using the wake-up word detection algorithm to analyze and detect an input
voice data stream, and calculating the similarity between the
voice data and a given wake-up
word model; if the similarity is greaterthan a given threshold T1, considering that wake-up words are detected, starting a wake-up word confirmation algorithm, introducing the voice data of assumed wake-up words, and otherwise, continuously detecting the wake-up words until the voice
data stream ends; step 3) using the wake-up word confirmation algorithm to analyze and calculate the obtained voice
data stream which is judged as the wake-up words by the wake-up word detection algorithm, and calculating the confidence coefficient of the wake-up words on a voice segment.