Method and apparatus for adjusting synchronization of audio and video

The present invention discloses an audio / video signal from the video system with audio / video synchronization to automatically adjust the synchronization errors between the audio signal automatic adjustment device and method. The present invention is a video output to the process, from the generation time of the audio test signal, the measuring of the audio delay amount between the audio test signal is output through a speaker, a display device from generating time point of the video test signal for generating a video and audio test signal, the process, based on the audio delay amount for the measuring of the video delay amount between the test signal, subtracting the audio delay amount from the video delay amount determining the audio delay amount to adjust the delay of the audio signal generated by the audio / video source devices it involves.