Definitions for "Surround sound"
Comes in 3 basic types: Dolby Pro Logic, Dolby Digital and DTS. Dolby Digital and DTS are newer technologies that use 5 channels and a separate Low Frequency Effects channel.
Multi-channel audio providing a two-dimensional sound resulting from the use of loudspeakers at the front and rear. A typical example is 5.1 channels (used in DVD-Video titles) comprising three front and two rear channels plus a low frequency effects channel.
A sound architecture that includes Left Rear, Right Rear, and Center channels. This architecture allows mixes with greater directional effects.
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