What is AC-3, what is AC-3 format made for, Convert Video/DVD to AC-3 format

What is AC-3 format

AC-3 (short for Arc Consistency Algorithm #3) is a type of Dolby Digital audio format. And the Dolby Digital is the common version containing up to six discrete channels of sound. The most elaborate mode in common usage involves five channels for normal-range speakers(20 - 20,000 Hz) (right front, center, left front, right, left surround)and one channel (20 Hz - 120 Hz allotted audio) for the subwoofer driven low-frequency effects. Mono and stereo modes are also supported. AC-3 supports audio sample-rates up to 48 kHz.

Although commonly associated with the 5.1 channel configuration, Dolby Digital allows a number of different channel selections. The options are:

Mono (Center only)
2-channel stereo (Left + Right), optionally carrying matrixed Dolby Surround
3-channel stereo (Left, Center, Right)
2-channel stereo with mono surround (Left, Right, Surround)
3-channel stereo with mono surround (Left, Center, Right, Surround)
4-channel quadraphonic (Left, Right, Left Surround, Right Surround)
5-channel surrounding (Left, Center, Right, Left Surround,Right Surround)

These configurations optionally include the extra Low Frequency Effect (LFE) channel. The last two with stereo surrounds optionally use Dolby Digital EX matrix encoding to add an extra Rear Surround channel.
Many Dolby Digital decoders are equipped with down-mixing to distribute encoded channels to speakers. This includes such functions as playing surround information through the front speakers if surround speakers are unavailable, and distributing the center channel to left and right if no center speaker is available. When outputting to separate equipment over a 2-channel connection, a Dolby Digital decoder can optionally encode the output using Dolby Surround to preserve surround information.The '.1' in 5.1, 7.1 etc. refers to the LFE channel, which is also a discrete channel.

Generally speaking, DVD's audio is AC-3 orDTS format, which is featured 5.1 surround sound. When you play and watch DVD movie through the home theater system, this multi-dimensional audio effect will make you immersive feel the fantastic of DVD movie. Meanwhile, AC-3 and DTS audio format can also be converted and stored into video files like MPEG and AVI. When playback them on your media player, it can also achieve the 5.1 Dolby Digital Surround Sound.


Related Software

WinX DVD Ripper: Free DVD to AC-3 converter which is made for help users convert DVD to AC-3, AAC, MP3, AVC, AVI, FLV, MPEG format with no fees involved.

WinX DVD Ripper Platinum: Advanced version of WinX DVD Ripper, apart from convert DVD to AC-3 at fastest speed and excellent quality, also capable of converting DVD to AC-3, MP3, AVC, MOV, iPhone, iPod, iPad, etc. Makes perfect 1:1 copy with 5 minutes. Constantly update to defeat upcoming DVD copy protections.

WinX DVD Ripper for Mac: Mac version WinX DVD Ripper Platinum, runs perfectly on Mac OS X Tiger/Leopard/Snow Leopard, convert DVD to AC-3, MP3, AVC, MP4, MOV, iPhone, iPad, iPod, etc.

Related Source

DVD,DTS, Mplayer, MPEG, AVI, VLC, Windows Media Player

Related External Source

    AAC Knowledge from WikiPedia

Best Sell Software

WinX DVD Ripper Platinum

#1 DVD Ripper
Enable you Backup & Rip DVD content to AVI, MP4, FLV, MPEG, MOV, WMV. Enjoy any DVDs on iPhone, iPad, iPod, iTouch, PSP, Zune, Zen and mobile phones.

Download WinX DVD Ripper PlatinumDownload WinX DVD Ripper for Mac

WinX HD Video Converter Deluxe

Fastest Video Converter
Convert all SD & HD Videos, AVCHD, Blu-ray, AVI, MPEG4, HD DV, MOV, MKV, MP4, WMV, MPEG, M2TS, H264/AVC, FLV. Grab Video from YouTube, Burn your Video to DVD.

Download HD Video Converter DeluxeDownload WinX HD Video Converter for Mac

Common Tasks

AVI MP4 H264 MPEG-4 DVD MPEG MKV AVC Free Video Converter MOV FLV TS WMV AAC DivX XviD iPod DVD Ripper Free Download VCD PAL NTSC PSP MPlayer XBOX Rip DVD Blu-ray NTSC iPad PS3 Zune PDA VLC M2TS Zen Apple TV DVD Rip Blackberry iPhone Quicktime MOD Windows Media Player CD FFDShow Aspect Ratio The KMPlayer HD Video MPEG-PS AVCHD HDTV AC-3 DTS Free DVD Ripper HandBrake