Harman-Kardon AVR 7550HD owner manual Table A13 - Surround Modes, Appendix, Description

APPENDIX

Table A13 – Surround Modes

Surround Mode	Description	Incoming Bitstream or Signal
Dolby Digital	Provides up to five separate main audio channels and a dedicated	• Dolby Digital 1/0/.0 or .1, 2/0/.0 or .1,
	low-frequency effects (LFE) channel.	3/0/.0 or .1, 2/1/.0 or .1, 2/2/.0 or .1,
		3/2/.0 or .1
		• Dolby Digital EX (played as 5.1)
		• Dolby Digital Plus decoded and delivered
		via coax or optical connection
Dolby Digital EX	An expansion of Dolby Digital 5.1 that adds a surround back channel	• Dolby Digital EX
	which may be played through one or two surround back speakers. May	• Dolby Digital 2/2/.0 or .1, 3/2/.0 or .1
	be manually selected when a non-EX Dolby Digital stream is detected.
Dolby Digital Plus	An enhanced version of Dolby Digital encoded more efficiently, Dolby	• Dolby Digital Plus via HDMI connection
	Digital Plus has the capacity for additional discrete channels and for	(source device decodes to Dolby Digital
	streaming audio from the Internet, all with enhanced audio quality. Source	when a coax or optical connection is used)
	material may be delivered via an HDMI connection, or decoded to Dolby
	Digital or PCM and transmitted via S/P-DIF coaxial or optical digital audio.
Dolby TrueHD	Dolby TrueHD is an expansion of MLP Lossless™ audio, the same format	• Blu-ray Disc or HD-DVD encoded with
	used on DVD Audio discs. Dolby TrueHD adds the features found in	Dolby TrueHD, delivered via HDMI
	Dolby Digital, such as night mode settings, while delivering fully lossless
	audio that is a true reproduction of the studio master recording.
Dolby Digital Stereo	Delivers a 2-channel downmix of Dolby Digital materials.	• Dolby Digital 1/0/.0 or .1, 2/0/.0 or .1,
		3/0/.0 or .1, 2/1/.0 or .1, 2/2/.0 or .1,
		3/2/.0 or .1
		• Dolby Digital EX
Dolby Pro Logic II	Analog decoder that derives five full-range, discrete main audio channels	See below
Mode Group	from matrix surround-encoded or 2-channel analog sources. Four variants
	are available.
Dolby Pro Logic II	Variant of Dolby Pro Logic II that is optimized for movie and	• Dolby Digital 2.0 or 2.1
Movie	television programs.	• Analog (2-channel)
		• Tuner
		• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
Dolby Pro Logic II	Variant of Dolby Pro Logic II that is optimized for music selections.	• Dolby Digital 2.0 or 2.1
Music	Allows adjustment of sound field presentation in three dimensions:	• Analog (2-channel)
	• Center Width (adjusts width of vocal soundstage)	• Tuner
	• Dimension (adjusts depth of soundstage)	• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
	• Panorama (adjusts wraparound surround effect)
Dolby Pro Logic II	Variant of Dolby Pro Logic II that emphasizes use of the surround	• Dolby Digital 2.0 or 2.1
Game	channels and subwoofer for total immersion in the video gaming	• Analog (2-channel)
	experience.	• Tuner
		• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)
Dolby Pro Logic	Original version of Dolby Pro Logic that steered a mono signal	• Dolby Digital 2.0 or 2.1
	containing information below 7kHz to the surround channels.	• Analog (2-channel)
		• Tuner
		• PCM (32kHz, 44.1kHz, 48kHz, 96kHz)

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