73EnglishINTRODUCTION PREPARATIONBASICOPERAIONTADVANCEDOPERATIONADDITIONALINFORMATION APPENDIXGLOSSARY Dolby SurroundDolby Surround uses a four analog channel recordingsystem to reproduce realistic and dynamic sound effects:two left and right main channels (stereo), a center channelfor dialog (monaural), and a rear channel for specialsound effects (monaural). The rear channel reproducessound within a narrow frequency range.Dolby Surround is widely used with nearly all video tapesand laser discs, and in many TV and cable broadcasts aswell. The Dolby Pro Logic decoder built into this unitemploys a digital signal processing system thatautomatically stabilizes the volume on each channel toenhance moving sound effects and directionality. Dolby DigitalDolby Digital is a digital surround sound system thatgives you completely independent multi-channel audio.With three front channels (left, center and right), and tworear stereo channels, Dolby Digital provides five full-range audio channels. With an additional channelespecially for bass effects, called LFE (low frequencyeffect), the system has a total of 5.1 channels (LFE iscounted as 0.1 channel).Using two-channel stereo for the rear speakers, moreaccurate moving sound effects and surround soundenvironment are possible than with Dolby Surround. Thewide dynamic range (from maximum to minimumvolume) reproduced by the five full-range channels andthe precise sound orientation generated using digitalsound processing provide listeners with previouslyunheard of excitement and realism.With this unit, any sound environment from monaural upto a 5.1-channel configuration can be freely selected foryour enjoyment. Dolby Pro LogicDolby Pro Logic is the improved technique to decodevast numbers of existing Dolby Surround programs. Thisnew technology enables a discrete 5-channel playbackwith two left and right main channels, a center channel,and two left and right rear channels compared with onelimited rear channel for the conventional Pro Logictechnology. Also the music mode is available for 2-channel sources in addition to the movie mode. DTS (Digital Theater Systems)Digital SurroundDTS digital surround was developed to replace the analogsoundtracks of movies with a six-channel digital soundtrack, and is now rapidly gaining popularity in movietheaters around the world. Digital Theater Systems Inc.has developed a home theater system so that you canenjoy the depth of sound and natural spatialrepresentation of DTS digital surround in your home.This system is practically distortion-free, clear 6-channelsound (technically, a left, right and center channels, tworear channels, plus an LFE 0.1 channel as a subwoofer,for a total of 5.1 channels). DTS Neo: 6Neo: 6 decodes the conventional 2-channel sources for 6channel playback by the specific decoder. It enablesplayback with the full-range channels with higherseparation just like digital discrete signal playback. Twomodes are available; “Music mode” for playing musicsources and “Cinema mode” for movies. LFE 0.1 channelThis channel is for the reproduction of low bass signals.The frequency range for this channel is 20 Hz to 120 Hz.This channel is counted as 0.1 because it only enforces alow frequency range compared to the full-rangereproduced by the other 5 channels in a Dolby Digital orDTS 5.1 channel systems. CINEMA DSP D I G I T A LSince the Dolby Surround and DTS systems wereoriginally designed for use in movie theaters, their effectis best felt in a theater having many speakers anddesigned for acoustic effects. Since home conditions,such as room size, wall material, number of speakers, andso on, can differ so widely, it’s inevitable that there aredifferences in the sound heard as well. Based on a wealthof actually measured data, YAMAHA CINEMA DSP usesYAMAHA original sound field technology to combineDolby Pro Logic, Dolby Digital and DTS systems toprovide the visual and audio experience of movie theaterin the listening room of your own home. SILENT CINEMA DSPYAMAHA has developed a natural, realistic sound effectDSP algorithm for headphones.Parameters for headphones have been set for each soundfield so that accurate representations of all the sound fieldprograms can be enjoyed on headphones.