Search for software:
Powered by RegNow
   Home | DVD Ripper Video Converter DVD Audio Ripper DVD Converter | 3GP | Audio ConverterGlossary SupportSite Map
 
     

AC3

   
AC3 file, a Dolby Digital audio file, can be found as the standard audio track on Digital Versatile Discs (DVD) and High Definition Television (HDTV). This coder has been designed to take maximum advantage of human auditory masking in that it divides the audio spectrum of each channel into narrow frequency bands of different sizes optimized with respect to the frequency selectivity of human hearing. This makes it possible to sharply filter coding noise so that it is forced to stay very close in frequency to the frequency components of the audio signal being coded. By reducing or eliminating coding noise wherever there are no audio signals to mask it, the sound quality of the original signal can be subjectively preserved.

Dolby Digital is the trademarked marketing name for Dolby Laboratories' 'lossy' AC-3 codec. The common version contains 5.1 channels (five primary speakers and an LFE channel), but the format supports Mono and Stereo usages as well.

Dolby Digital EX is very similar in practice to Dolby's earlier Pro-Logic format, which utilized Matrix technology to add a center and single rear surround channel to stereo soundtracks. EX adds an EXtension to the standard 5.1 channel Dolby Digital codec in the form of matrixed rear channels, creating 6.1 or 7.1 channel output. However, the format is not considered a true 6.1 or 7.1 channel codec because it lacks the capability to support a discrete 6th channel like the competing DTS-ES codec.

Dolby Digital Surround EX: Whereas Dolby's Pro-Logic IIx format creates 6.1 and 7.1 channel output from stereo 2 channel (2.0). Dolby formats, the Digital Surround EX codec adds a sixth and sometimes seventh channel to standard (non-EX) 5.1 channel Dolby Digital soundtracks.

Dolby Digital Plus is an enhanced coding system based on the AC-3 codec. It offers increased bitrates (up to 3 Mbit/s), support for more audio channels (up to 13.1), improved coding techniques to reduce compression artifacts, and backward compatibility with existing AC-3 hardware.

3GP AAC AC3 ASF ASX AUDIO_TS
AVI CDA Codec CSS D-VHS DAT
DivX DRM DTS DV DVD DVD10
DVD18 DVD5 DVD9 DVD-Audio DVD-MP3 FLAC
ID3 ISO M3U M4A M4P MIDI
miniDV miniDVD MOV MP2 MP3 MP3 ID3 Tag
MPEG MPEG1 MPEG2 MPEG4 MPEG7 NTSC
OGG OGG Vorbis PAL QuickTime RA RealVideo
Region codes RM RMVB Streaming SVCD SVHS
VCD VHS VHSRip VIDEO_TS VOB VQF
WAV WMA WMV XSVCD XviD  















 
     iPod Software
  DVD to iPod Converter  
  iPod Video Converter
DVD to iPod for Mac
iPod Convert for Mac
  DVD to iPad
  TV shows to iPod
  Flash Swf to iPod
  CD to iPod
  iPod2iPod
  iPod to PC
  iPod File Recovery
  iPod Software Sync
     DVD Ripper
 

DVD to DivX

 
Rip DVD to AVI
DVD to MP3
DVD to PSP
DVD to MPEG4
DVD to PPC
  DVD to XviD
  DVD to VCD
  DVD Rip SVCD
  Convert DVD to iPod
  Copy DVD to DVD
     DVD Converter
  AVI to DVD  
MPEG to DVD
DivX to DVD
XviD to DVD
miniDV to DVD
MPG to DVD
Photo to DVD
     DVD Audio Ripper
 

DVD Audio to MP3

 
DVD to WAV
  3GP Video Converter  
AVI MPEG WMV to iPod
PSP Converter
iPad converter
WMV to AVI
WMV to MPG
MOV to AVI
MOV to MPEG
AVI to MPG
AVI to RM
AVI to 3GP
AVI to MP4
MPEG to MP4
MPEG to RM
MPEG to 3GP
MP4 to MPEG
RMVB Converter
  AAC to MP3  
  APE to MP3
  M4A to MP3
  WMA to MP3
 
Copyright © 2004 - 2005 GoRipper.COM All Rights Reserved