PURPOSE: A karaoke device using a bio signal of a user and a karaoke system thereof are provided to calculate a score by applying an emotional part or a mental part of a user by using various sensors recognizing bio signals. CONSTITUTION: A karaoke device (100) includes a bio signal receiving unit (110) receiving a sensing value of one or more bio signals, a voice signal receiving unit (120) receiving a voice signal from a connected micro phone, and an output unit (140) outputting a response to the voice signal. The device includes a control unit (160) generating the response to the voice signal received from the voice signal receiving unit according to a content characteristic designated for content played based on a level determined from the sensing value. The control unit generates different responses according to a plurality of content including the content characteristic. The bio signal is the pulse of a hand, the pressure of the hand, the humidity of the hand, or the temperature of the hand. [Reference numerals] (110) Bio signal receiving unit； (120) Voice signal receiving unit； (130) Input unit； (140) Output unit； (150) Storage unit； (160) Control unit본 발명은, 하나 이상의 생체 신호 값을 이용하여 사용자의 심리 상태나 신체 상태를 파악하고 이를 노래의 채점에 반영하거나 사용자에게 상태에 따라 반응할 수 있는, 노래 반주 장치 및 노래 반주 시스템에 관한 것이다.본 발명을 이용함으로써, 사용자의 상태에 따라 반응할 수 있고 사용자의 감성이나 심리 상태에 따라 노래 채점에 반영될 수 있도록 하는 효과가 있다.
