87GBAdjusting Settingsx Sound OptimizerLets you enjoy clear and dynamic sound atlow volume levels. For details, see “Usingthe Sound Optimizer function” (page 53).• Normal• Low• Offx EqualizerLets you adjust the bass and treble level foreach speaker. For details, see “Adjustingthe Equalizer” (page 53).x Sound FieldLets you select a sound effect applied toinput signals. For details, see “EnjoyingSound Effects” (page 50).x A/V Sync. (Synchronizesaudio with video output)Lets you delay the output of audio tominimize the time gap between audiooutput and visual display.This function is useful when you use a largeLCD or plasma monitor or a projector.• HDMI Auto: The time gap betweenaudio output and visual display for themonitor connected via an HDMIconnection will be adjusted automaticallybased on the information for the TV. Thisfeature is available only when themonitor supports the A/V Sync function.• 0 ms – 300 ms: You can adjust the delayfrom 0 ms to 300 ms in 10 ms intervals.• This function does not work when “AnalogDirect” is being used.• The delay time may vary depending on audioformat, sound field, speaker pattern and speakerdistance settings.x Auto VolumeThis receiver can adjust the volumeautomatically depending on the inputsignal or content from the connectedequipment.This function is useful, for example, whenthe sound of a commercial is louder thanthe TV programs.• On• Off• Be sure to reduce the volume level before youturn on/off this function.• As this function is available only when DolbyDigital, DTS or Linear PCM signals are input,the sound may suddenly increase when youswitch to other formats.• This function does not work in the followingcases.– Linear PCM signals with a samplingfrequency of more than 48 kHz are beingreceived.– Dolby Digital Plus, Dolby TrueHD, DTS 96/24, DTS-HD Master Audio, or DTS-HD HighResolution Audio signals are being received.x Dual Mono (Digital broadcastlanguage selection)Lets you select the language you wantwhen you listen to the dual audio of adigital broadcast when available. Thisfeature only functions for Dolby Digitalsources.• Main/Sub: Sound of the main languagewill be output through the front leftspeaker and sound of the sub languagewill be output through the front rightspeaker simultaneously.• Main: Sound of the main language willbe output.• Sub: Sound of the sub language will beoutput.x D.Range Comp. (DynamicRange Compression)Lets you compress the dynamic range ofthe soundtrack. This may be useful whenyou want to watch movies at low volumeslate at night. Dynamic range compressionis possible with Dolby Digital sources only.• On: The dynamic range is compressed asintended by the recording engineer.• Auto: The dynamic range is compressedautomatically.NotesNotes