Dolby Surround

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Dolby Surround

A digital audio encoding system from Dolby that provides four channels. Derived from the Dolby Stereo technology used in movie theaters, Dolby Surround was introduced in the early 1980s for video soundtracks, audio cassettes, CDs, TV broadcasts, video games and PC software.

Dolby Pro Logic
The original Dolby Surround decoders in consumer equipment only played back the surround channels. Dolby Pro Logic was introduced shortly after for playback of the center channel as well. Pro Logic II added left and right surround channels (5.1), and Pro Logic IIx added support for 6.1 and 7.1 channels. See Dolby Digital.
References in periodicals archive ?
To celebrate, we're giving away a Pioneer 32in LCD TV with a Dolby Pro Logic and DTS Home Cinema System, courtesy of Revolver Entertainment.
It is based on the individual acoustics of the Vantage's interior and uses a 700-watt amplifier with Dolby Pro Logic II home cinema technology and a new subwoofer to enhance bass performance.
I though that the best DSP work to deliver a surround effect was done by the Dolby Pro Logic II circuits in my main system, although the "jazz-club" simulations I tried with my middle system were very effective also.
Criterion has added a number of improvements to the new version of the developer software including support for Dolby Pro Logic II, dictionary editing and memory management features.
Dolby Pro Logic II produces five full channels of surround sound through the conventional stereo connectors included with all game consoles.
If movie-theater sound isn't as important to you, you can save money by holding off on the THX, an upgraded version of Dolby Pro Logic receivers.
It doesn't hook up to a TV and speakers to give Dolby Pro Logic sound.
Conventional surround-sound systems such as Dolby Pro Logic contain four channels of sound - front left, front right, center and rear surrounds - to create a lifelike sound environment for home-movie viewing.
Introduced last year on audio-video receivers (AVRs) from Denon, Integra, Marantz, and Onkyo, Dolby Pro Logic IIz is now available in select new AVRs from Sony.
There will also be a 910-watt Dynaudio Premium audio system with Dolby Pro Logic II surround sound on SE Lux models.
The soundstage is wide and detailed in stereo, and with assorted DSP ambiance emendations applied, including Dolby Pro Logic II in my main system, the sense of live-music space was definite.