What is AC3?
AC3 is the audio
format utilized by ATSC and DigiCipher II.
AC3 is supported
as an optional audio standard by DVB and DSS. AC3 is also known
as Dolby Digital. The AC3 standard is being replaced with AAC (Advanced
Audio Coding), although AC3 will continue to live on for many decades
due to the number of systems and networks which currently utilize
it.
Make a summary of AC3: AC3 is Audio Coding 3. AC3 file
is a Dolby Digital audio file, can be found as the standard audio
track on Digital Versatile Discs (DVD) and High Definition Television
(HDTV), Replaced by marketing mavens when they realized that Dolby's
name was not in the title. Some RF modulated, 5.1-encoded laser
discs were labeled as AC3. Later versions were labeled as Dolby
Digital. AC3 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.
AC3 Software
Review:
- ImToo
DVD Audio Ripper - Extract DVD audio track, DVD
audio ripper rip DVD audio to mp3 wav AC3 LPCM audio.
- ImTOO
DVD to iPod Suite - Put DVD on iPod, Put Video on
iPod, Put Movie on iPod Software, support DVD AVI Mpeg WAV WMV
MP3 AC3 RA M4A OGG AAC etc.
- Xilisoft
DVD Ripper Platinum - Rip DVD to audio formats including
MP3, WAV, WMA, AAC, AC3, M4A, MP2, OGG, etc.
- Xilisoft
DVD to iPod Suite - Transfer DVD to iPod, Transfer
Video to iPOd, Transfer Movie to iPod Software, support AVI
Mpeg WAV WMV MP3 AC3 RA M4A OGG AAC etc.
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