Yamaha RX-V340 Owner's Manual

Also see for HTR-5630RDS: Service manual Owner's manual

Contents

EnglishBASICOPERATION27DIGITAL SOUND FIELD PROCESSING (DSP)Understanding sound fieldsA sound field is defined as the “characteristic sound reflections of aparticular space.” In concert halls and other music venues, we hearearly reflections and reverberations as well as the direct soundproduced by the artist(s). The variations in the early reflections andother reverberations among the different music venues is what giveseach venue its special and recognizable sound quality.YAMAHA sent teams of sound engineers all around the world tomeasure the sound reflections of famous concert halls and musicvenues, and collect detailed sound field information such as thedirection, strength, range, and delay time of those reflections. Thenwe stored this enormous amount of data in the ROM chips of thisunit. Recreating a sound fieldRecreating the sound field of a concert hall or an opera house requires localizing the virtual sound sources in yourlistening room. The traditional stereo system that uses only two speakers is not capable of recreating a realistic soundfield. YAMAHA’s DSP requires four effect speakers to recreate sound fields based on the measured sound field data.The processor controls the strength and delay time of the signals output from the four effect speakers to localize thevirtual sound sources and fully encompass the listener.Hi-Fi DSP programsThe following list gives you a brief description of the sound fields produced by each of the DSP programs. Keep inmind that most of these are precise digital recreations of actual acoustic environments.No.1234ProgramCONCERT HALLJAZZ CLUBROCK CONCERTENTERTAINMENT/DiscoENTERTAINMENT/5ch StereoFeaturesA large round concert hall with a rich surround effect. Pronounced reflections from all directionsemphasize the extension of sounds. The sound field has a great deal of presence, and your virtualseat is near the center, close to the stage.This is the sound field at stage front in “The Bottom Line”, a famous New York jazz club, thatseats up to 300 people. Its wide left to right seating arrangement offers a real and vibrant sound.The ideal program for lively, dynamic rock music. The data for this program was recorded at LA’s“hottest” rock club. The listener’s virtual seat is at the center-left of the hall.This program recreates the acoustic environment of a lively disco in the heart of a big city. Thesound is dense and highly concentrated. It is also characterized by a high-energy, “immediate”sound.Using this program increases the listening position range. This is a sound field suitable forbackground music at parties, etc.