Harman Kardon AVR 7550HD Owner's Manual

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41ADVANCED FUNCTIONSThe first number indicates the number of front channels in the signal:“1” represents a monophonic recording, usually an older programthat has been digitally remastered or, more rarely, a modernprogram for which the director has chosen a special effect.“2” indicates the presence of the left and right channels, but nocenter channel.“3” indicates that all three front channels (left, right and center)are present.The second number indicates whether any surround channels arepresent:“0” indicates that no surround information is present.“1” indicates that a matrixed surround signal is present.“2” indicates discrete left and right surround channels.“3” is used with DTS-ES bitstreams to represent the presenceof the discrete surround back channel, in addition to the sidesurround left and right channels.“4” is used with 7.1-channel digital formats to indicate the presenceof two discrete side surround channels and two discrete backsurround channels.The third number is used for the LFE channel:“0” indicates no LFE channel.“.1” indicates that an LFE channel is present.The 6.1-channel signals – Dolby Digital EX and DTS-ES Matrixand Discrete – each include a flag meant to signal the receiver todecode the surround back channel, indicated as 3/2/.1 EX-ON forDolby Digital EX materials, and 3/3/.1 ES-ON for DTS-ES materials.Dolby Digital 2.0 signals may include a Dolby Surround flag indicatingDS-ON or DS-OFF, depending on whether the 2-channel bitstreamcontains only stereo information, or a downmix of a multichannelprogram that can be decoded by the AVR’s Dolby Pro Logic decoder.By default, these signals are played in Dolby Pro Logic IIx Movie mode.When a PCM signal is received, the PCM message and the samplingrate (32kHz, 44.1kHz, 48kHz or 96kHz) will appear.When only two channels – left and right – are present, the analogsurround modes may be used to decode the signal into the remain-ing channels. If you would prefer a different surround format thanthe native signal’s digital encoding, press the Surround ModesButton to display the Surround Modes menu (see Figure 26).The Auto Select option uses the native signal’s digital encoding,e.g., Dolby Digital, DTS, Dolby TrueHD or DTS-HD Master Audio.For 2-channel materials, the AVR defaults to Logic 7 Movie mode.If you prefer a different surround mode, select the surround modecategory: Virtual Surround, Stereo, Movie, Music or Video Game.Press the OK Button to change the mode.Each category is set to a default surround mode:• Virtual Surround: Dolby Virtual Speaker Reference• Stereo: 7-channel stereo• Movie: Logic 7 Movie• Music: Logic 7 Music• Video Game: Logic 7 GameYou may select a different mode. The choice of surround modesdepends on the number of speakers in your system.• Virtual Surround: Dolby Virtual Speaker Reference or Wide• Stereo: 2-channel stereo, 5-channel stereo or 7-channel stereo• Movie: Logic 7 Movie, DTS Neo:6 Cinema, Dolby Pro Logic IIMovie, Dolby Pro Logic IIx Movie• Music: Logic 7 Music, DTS Neo:6 Music, Dolby Pro Logic IIMusic, Dolby Pro Logic IIx Music• Video Game: Logic 7 Game, Dolby Pro Logic II Game, DolbyPro Logic IIx GameOnce you have programmed the surround mode for each type ofaudio, select the line from the Surround Modes menu to overridethe AVR’s automatic surround mode selection. The AVR will use thesame surround mode the next time the source is selected.Please refer to Table A13 in the appendix for more information onwhich surround modes are available with different bitstreams.Dolby Surround SettingsSome additional settings are available for Dolby modes. When theDolby Pro Logic II or IIx Music modes have been selected, choosethe Edit submenu to adjust the Center Width, Dimension andPanorama settings. See Figure 27.Figure 27 – Dolby Pro Logic II/IIx Music Mode SettingsCenter Width: This setting affects how vocals sound throughthe three front speakers. A higher number (up to 7) focuses thevocal information tightly on the center channel. Lower numbersbroaden the vocal soundstage. Use the 7/3 Buttons to adjust.Dimension: This setting affects the depth of the surround pres-entation, allowing you to “move” the sound toward the front or rearof the room. The setting of “0” is a neutral default. Setting “F-3”moves the sound toward the front of the room, while setting “R-3”moves the sound toward the rear. Use the 7/3 Buttons to adjust.Panorama: With the Panorama mode turned ON, some of thesound from the front speakers is moved to the surround speakers,creating an enveloping “wraparound” effect. Each press of the OKButton toggles the setting on or off.MANUAL SPEAKER SETUPThe AVR 7550HD is flexible and may be configured for most speakers,and to compensate for the acoustic characteristics of your room.The EzSet/EQ II process automatically detects the capabilities ofeach speaker, and optimizes the AVR 7550HD’s performance. If you