Harman Kardon AVR 347 Owner's Manual

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Harman Kardon AVR 347 Owner's Manual Manual pdf 42 page image

42 OPERATIONOperationWhen the digital source is playing, the AVR willautomatically detect whether it is a multichannelDolby Digital or DTS source or a conventionalPCM signal, which is the standard output fromCD players.Note that a digital input (e.g. coaxial) remainsassociated with any analog input (e.g. DVD) assoon as it is selected, thus the digital input neednot be re-selected each time the appropriateinput choice (e.g. DVD) is made.Digital Bitstream IndicatorsWhen a digital source is playing, the AVR sensesthe type of bitstream data that is present. Usingthis information, the correct surround mode willautomatically be selected. For example, DTS bit-streams will cause the unit to switch to DTSdecoding, and Dolby Digital bitstreams willenable Dolby Digital decoding. When the unitsenses PCM data, from CDs and LDs and somemusic DVDs or certain tracks on normal DVDs, itwill allow the appropriate surround mode to beselected manually. Since the range of availablesurround modes depends on the type of digitaldata that is present, the AVR uses a variety ofindicators to let you know what type of signal ispresent. This will help you to understand thechoice of modes and the input channels recordedon the disc.When a digital source is playing, the AVR willdisplay a variety of messages to indicate thetype of bitstream received. These messages willappear shortly after an input or surround modeis changed, and will remain in the MainInformation Display Ò for about fiveseconds before the display returns to the normalsurround mode indication.Surround Mode TypesFor Dolby Digital and DTS sources, a three digitindication will appear, showing the number ofchannels present in the data. An example of thistype of display is 3/2/.1.The first number indicates how many discretefront channel signals are present.• A 3 tells you that separate front left, centerand front right signals are available. This willbe displayed for Dolby Digital 5.1 and DTS 5.1programs.• A 2 tells you that separate front left and rightsignals are available, but there is no discretecenter channel signal. This will be displayed forDolby Digital bit streams that have stereoprogram material.• A 1 tells you that there is only a mono channelavailable in the Dolby Digital bitstream.The middle number indicates how many discretesurround channel signals are present.• A 2 tells you that separate surround left andright signals are available. This will be dis-played for Dolby Digital 5.1 and DTS 5.1 pro-grams.• A 1 tells you that there is only a single, sur-round encoded surround channel. This willappear for Dolby Digital bit streams that havematrix encoding.• A 0 indicates that there is no surround chan-nel information. This will be displayed for two-channel stereo programs.The last number indicates if there is a discrete LowFrequency Effects (LFE) channel. This is the “.1” inthe common abbreviation of “5.1” sound and it isa special channel that contains only bass frequen-cies.• A .1 tells you that an LFE channel is present.This will be displayed for Dolby Digital 5.1 andDTS 5.1 programs, as available.• A 0 indicates that there is no LFE channelinformation available. However, even whenthere is no dedicated LFE channel, low fre-quency sound will be present at the subwooferoutput when the speaker configuration is setto show the presence of subwoofer.• The information in the right side of the displaywill tell you if the digital audio data contains aspecial flag signal that will automaticallyactivate the appropriate 6.1 or 7.1 mode. Thiswill be shown as EX-ON or EX-OFF for DolbyDigital bitstreams and ES-ON or ES-OFF forDTS bitstreams.An UNLOCK message may appear in theLower Display Line Ò. This is your indicationthat the digital audio data stream has beeninterrupted or is no longer present. When thatoccurs, the unit’s digital signal processor has nosignal to lock onto, and is thus “unlocked.” Youmay see this message when a DVD is first start-ed until the stream is playing and the processordetermines which mode to apply; or any timethe data stream is stopped or paused, such aswhen the menus of some discs are displayed orwhen the player is switching between thedifferent sections of a disc. You may also see themessage when a satellite receiver, cable set-topor HDTV tuner is in use if the digital audio istemporarily interrupted when channels arechanged or when a cable box switches from achannel with a digital data stream to a channelwith analog audio only. The UNLOCK messageis normal, and does not indicate any problemwith your receiver. Rather, it tells you that theincoming data has simply been paused or is notpresent for a variety of possible reasons.For incoming Dolby Digital signals, the following modes are available:Incoming Bitstream Available Surround ModesDolby Digital 1/0/.0 or 1/0/.1 Dolby Digital, Dolby Digital Stereo, Dolby Virtual Speaker Reference (2 Speaker), Dolby Virtual Speaker Wide (2 Speaker)Dolby Digital 2/0/.0 or 2/0/.1 Dolby Pro Logic II (Movie, Music or Game), Dolby Pro Logic, Dolby Digital, Dolby Virtual Speaker Reference (2 or 3 Speaker),Dolby Virtual Speaker Wide (2, 3, 4 or 5 Speaker), Dolby Pro Logic IIx (Movie, Music or Game)Dolby Digital 3/0/.0 or 3/0/.1 Dolby Digital, Dolby Digital Stereo, Dolby Virtual Speaker Reference (2 or 3 Speaker), Dolby Virtual Speaker Wide(2 or 3 Speaker)Dolby Digital 2/1/.0 or 2/1/.1 Dolby Digital, Dolby Digital Stereo, Dolby Virtual Speaker Reference (2 or 3 Speaker), Dolby Virtual Speaker Wide(2, 3, 4 or 5 Speaker)Dolby Digital 2/2/.0 or 2/2/.1 Dolby Digital, Dolby Digital Stereo, Dolby Virtual Speaker Reference (2 Speaker), Dolby Virtual Speaker Wide(2 or 4 Speaker), Dolby Digital EX1, Dolby Pro Logic IIx1 (Movie or Music)Dolby Digital 3/2/.0, 3/2/.1 Dolby Digital, Dolby Digital Stereo, Dolby Virtual Speaker Reference (2 or 3 Speaker), Dolby Virtual Speaker Wide(2, 3, 4 or 5 Speaker), or EX Dolby Digital EX1, Dolby Pro Logic IIx1 (Movie or Music)