DEVICE AND A METHOD FOR AUTOMATICALLY SELECTING AN EXTERNAL INPUT AUDIO SIGNAL IN A TIMELAPSE VCR, PARTICULARLY FOR ALARMING/DISPLAYING A VIDEO SCREEN WHERE AN ABNORMAL AUDIO SIGNAL IS GENERATED, AND AUTOMATICALLY SELECTING THE ABNORMAL AUDIO SIGNAL TO OUTPUT THE SIGNAL

摘要

PURPOSE: A device and a method for automatically selecting an external input audio signal in a timelapse VCR are provided to automatically select an abnormal audio signal when the abnormal audio signal is detected on a quad 4-splitting screen, and to output the selected abnormal audio signal, then to display a video screen with the audio signal, thereby more reliably executing a security monitoring process. CONSTITUTION: When a timelapse recording is requested by a user(S200), a timelapse VCR unit records a video signal inputted from an external camera on a recording tape(S202). If an external audio signal automatic select mode is set, the VCR unit checks whether a certain audio signal exceeds a reference level(S204). If so, the VCR unit displays a video signal where the audio signal is inputted(S206), and automatically selects the audio signal with an external output audio signal to output the selected signal with a video screen(S208).