Sirius Satellite Radio 6.1ch Sirius-Ready A/V Surround Receiver manual About Dolby Pro Logic

Dolby Digital audio coding includes such consumer formats as DVD and DTV. As with film sound, Dolby Digital can provide up to five full-range channels for left, center, and right channels, independent left and right surround channels, and a sixth (“.1”) channel for low-frequency effects.

Dolby Surround Pro Logic II is an improved matrix decoding technology that provides better spatiality and directionality on Dolby Surround program material; provides a convincing three-dimensional sound field on conventional stereo music recordings; and is ideally suited to bring the surround experience to automotive sound. While conventional surround programming is fully compatible with Dolby Surround Pro Logic

IIdecoders, soundtracks can be encoded specifically to take full advantage of Pro Logic II playback, including separate left and right surround channels. (This is also compatible with conventional Pro Logic decoders.)

Dolby Digital EX creates six full-bandwidth output channels from 5.1- channel sources using a matrix decoder that drives three surround channels from the two in the original recording. For best results, Dolby Digital EX should be used with movie soundtracks recorded with Dolby Digital Surround EX.

About Dolby Pro Logic IIx

Dolby Pro Logic IIx technology delivers a natural and immersing 6.1 channel listening experience to the home theater environment. A product of Dolby’s expertise in surround sound and matrix decoding technologies, Dolby Pro Logic IIx is a complete surround-sound solution that maximizes the entertainment experience from stereo as well as 5.1 channel-encoded sources.

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