Electronic device and electronic method of starting specific functions

An electronic device and an electronic method of starting specific functions are provided. The electronic device comprises a loudspeaker, a sound signal processor and an application processor. The sound signal processor is able to sense the change of the sound condition of the loudspeaker, and the application processor is able to respond to the sensed sound condition change to generate high or low logic signals, explain the high or low logic signals to be control signals and execute instruction according to the control signals.