How to Extract Audio from DVD as AC3 5.1 Channel Audio File? Q: I teach listening in a college. To be able to develop the interests of my students making my class more vivid, I made the decision to try out the audios of hot movies on the class for listening training. I've, and keep pace with the times, some latest DVD movies but I wonder whether it is possible for getting audio from the DVD? - The solution is absolutely yes! You are able to directly rip audio over DVD for teaching or other purposes through the use of BlazeVideo DVD Copy. Merits of AC3 Format File AC3 (Dolby Audio Coding 3) comprises nearly 6 audio channels, specifically, 5 channels for normal-range speakers (20 - 20,000 Hz) and 1 channel (20 Hz - 120 Hz allotted audio) for your subwoofer driven low-frequency effects. In specific, the surround system furnished by Dolby AC3 typically is made of 5 pure frequency domain channels including left front, right front, center, left rear and right rear and 1 ultra-low track, called 5.1 channel. Generally, DVD accepts 3 types of audio formats: AC3, MPEG2 and DTS. In comparison with these two, AC3 mainly provides the strong points below: Good sound effect: AC3 audio comes into the world with good audio effect; it enables you to feel original DVD audio and multichannel;