20AVR 158 Operating Your AVR, continued,and Advanced FunctionsListening to FM and AM RadioSelect the AM/FM source. use the tuning up/down buttons to tune a station, which willbe shown on the front-panel display and the tV screen.the AVr defaults to automatic tuning, meaning each press of the tuning up/downbuttons scans until a station with acceptable signal strength is found. to switch tomanual tuning, in which each press of a tuning button steps through a single frequencyincrement, press the tuning Mode button. each press of the tuning Mode button togglesbetween the automatic and manual tuning modes.once you have tuned an FM station, toggling the tuning Mode setting also switches theradio between stereo and monaural reception. (Mono reception may improve receptionof weaker stations.)Preset StationsA total of 30 stations (AM and FM combined) may be stored as presets. when the desiredstation has been tuned in, press the Memory button on the remote, and two dashes willflash on the front-panel Message display. use the number buttons to enter the desiredpreset number.to tune a preset station, press the preset up/down buttons or enter the preset numberusing the number buttons.Selecting a Surround ModeSelecting a surround mode can be as simple or sophisticated as your individual systemand tastes. Feel free to experiment, and you may find a few favourites for certain sourcesor program types. You can find more detailed information on surround modes inAudioprocessing and Surround Sound, on this page.to select a surround mode, press the oSd button on the remote to display the Mastermenu:** MASTER MENU **INPUT SETUPSURROUND MODEMANUAL SETUPSYSTEM SETUPuse the up/down and ok buttons to select Surround Mode. the Surround Mode menuwill appear:* MODE : MUSIC *DOLBY PLII MUSICCENTER WIDTH :3DIMENSION :0PANORAMA :OffBACK TO MASTER MENUuse the up/down and ok buttons to select the desired surround-mode category.Auto Select: For a digital program, such as a movie recorded with a dolby digital ordtS soundtrack, the AVr will automatically use the soundtrack’s native surround format.For two-channel analogue and pcM programs, the AVr uses the logic 7 Movie, logic 7Music or logic 7 game mode, depending on the source.Virtual Surround: when only two main speakers are present in the system, you canuse hArMAn virtual surround to create an enhanced sound field that virtualises themissing speakers.Stereo: when you want two-channel playback, select the number of speakers you wantto use for playback:“2 ch Stereo” uses two speakers.•“5 ch Stereo” plays the left-channel signal through the front left and surround left•speakers, the right-channel signal through the front right and surround right speakers,and a summed mono signal through the centre speaker.Movie: Select from the following when you want a surround mode for movie playback:logic 7 Movie or dolby pro logic II Movie.Music: Select from the following when you want a surround mode for music playback:logic 7 Music or dolby pro logic II Music. the dolby pro logic II Music mode providessome additional settings. SeeAudio processing and Surround Sound, on this page, formore information.Video Game: Select from the following when you want a surround mode for gameplayback: logic 7 game or dolby pro logic II game.After you select the surround-mode category, the Mode menu will appear:* MODE : MUSIC *DOLBY PLII MUSICCENTER WIDTH :3DIMENSION :0PANORAMA :OffBACK TO MASTER MENUuse the left/right buttons to change the surround mode.You can also select surround modes using the AVr’s front-panel buttons:press the Surr Mode button. the Message display will show the surround-mode1.category and surround mode.to change the surround mode within the surround-mode category, press the Surround2.Select up/down buttons. each press will change to the next surround mode.to change the surround-mode category, press the Surr Mode button. each press will3.change to the next surround-mode category.Advanced FunctionsMuch of the adjusting and configuration your AVr requires is handled automatically, withlittle intervention required on your part. You can also customise your AVr to suit yoursystem and your tastes. In this section, we will describe some of the more advancedadjustments available to you.Audio Processing and Surround SoundAudio signals can be encoded in a variety of formats that can affect not only the qualityof the sound but also the number of speaker channels and the surround mode. You mayalso manually select a different surround mode, when available.Analogue Audio SignalsAnalogue audio signals usually consist of two channels – left and right. Your AVr offerstwo options for analogue playback:DSP Surround Off Mode: the dSp Surround off mode digitises the incoming signal andapplies the bass-management settings, including speaker configuration, delay timesand output levels. Select this mode when your front speakers are small, limited-rangesatellites and you are using a subwoofer. to select this mode, use a digital audio input orturn the tone control setting off, then select 2 ch Stereo mode.Analogue Surround Modes: Your AVr is able to process two-channel audio signals toproduce multichannel surround sound, even when no surround sound has been encodedin the recording. Among the available modes are the dolby pro logic II, hArMAn virtualspeaker, logic 7 and 5 ch Stereo modes. to select one of these modes, seeSelecting aSurround Mode, on this page.Digital Audio Signalsdigital audio signals offer greater flexibility and capacity than analogue signals andallow the encoding of discrete channel information directly into the signal. the result isimproved sound quality and startling directionality, since each channel’s information istransmitted discretely. high-resolution recordings sound extraordinarily distortion-free,especially in the high frequencies.