Super Glossary

AC-3

Technology / Television (TV) / AC-3

AC-3: The 5.1-channel sound system specified in the Standard for Digital-HDTV. Also known as 'Dolby Digital,' AC-3 delivers CD-quality digital audio and provides five full-bandwidth channels for front left, front right, center, surround left and surround right speakers, plus an LFE (low frequency effect) subwoofer, for a total of 5.1 channels.

Related Words

Ac-3: (audio coding 3) Dolby's digital audio data compression algorithm adopted for HDTV transmission and used in dvds, laserdiscs and cds for 5.1 multichannel home theater use and automotive surr . . . View Full Definition

Dolby Digital - AC-3 Compatible: Formerly known as Dolby AC-3, or audiocoding-3, delivers the movie experience through a maximum of 5.1 channels of surround sound audio. Since the mid-1990's, this Dolby sound format has bec . . . View Full Definition

High Definition Television (HDTV): The generally agreed upon definition of HDTV is approximately twice the vertical and horizontal picture resolution of today's NTSC TV, which essentially makes the picture twice as sharp. HDT . . . View Full Definition

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