AC-3

Technology / Television (TV) / 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.
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Dolby Digital - AC-3 Compatible

Technology / Television (TV) / 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 become the mo MORE

High Definition Television (HDTV)

Technology / Television (TV) / 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. HDTV also has MORE

Dolby Digital

Technology / Home Audio / Dolby Digital: Dolby's name for its format for the digital soundtrack system for motion picture playback. Utilizes their AC-3 method of digital compression. The signal is optically printed between the sprocket holes MORE