Storm video to see avi video images and sounds are not synchronized

Reader's letter: Storm video to watch avi format video images and sounds are not synchronized, but also cards, please tell me in detail, thank you.

The engineer replied: When playing video files, the sound and the screen are out of sync is a problem we often encounter. Storm Video provides a solution to this problem. In the "Audio Switcher" window, check the "Enable Built-in Audio Switching Filter" and "Sound Delay Time (ms)" options, then calculate the time value based on the time of the out-of-synchronization and enter it into the box. The value is delayed playback of the sound, and the positive value is played in advance. Finally click on the "Apply" button. This will cause the sound to play in advance or delayed.