2007-10-08 05:30:43 · 3 answers · asked by sil 2 in Consumer Electronics ➔ Other - Electronics
It's the encoding of the audio with multiple channels.
See the link below.
2007-10-08 05:39:00 · answer #1 · answered by Anonymous · 2⤊ 0⤋
AC-3 (Audio Code number 3) refers to a multichannel music and cinema audio compression technology that was developed by Dolby Laboratories.
The goal of this digital compression technology was to produce a digital representation of an audio signal which, when decoded and reproduced, sounds the same as the original signal, while using a minimum of digital information (bit-rate) for the compressed (or encoded) representation, providing true surround sound.
In the first few years after it introduction, Dolby Laboratories used the term 'Dolby Digital' to refer to this digital system in the film and theatre industries, and used the term 'Dolby Surround AC-3' to refer to the system in the home theatre market
In practice both the cinema and home theatre applications are variations of the same basic technology (with slightly different data rates). So to minimize the possibility of confusion by consumers, the Company decided that Dolby's consumer multichannel digital format would be known by the same name used in the film industry i.e. 'Dolby Digital'.
2007-10-08 06:51:22 · answer #2 · answered by Nightworks 7 · 1⤊ 0⤋
its a form of audio on the dvd,more often you'll see 5.1 or 5.1 dts,its just what its been encoded with,you wont appreciate the sound as intended if you havent got the required decoder.
2007-10-08 05:43:41 · answer #3 · answered by =)) 3 · 1⤊ 0⤋