AC-3 File Format

Standard for NTSC DVDs and beyond.

AC-3 (AC3) is a Dolby file format engineered to provide high quality 6 discreet channels of audio. The encoding is compressed in order to maximize limited bandwidth of the delivery media. AC-3 also supports stereo left & right configuration as well as mono configuration.

The system is in widespread use in movie theaters, NTSC DVDs and Digital TV broadcasting.