Yamaha DSP-AZ2 - Manual (Page 36)

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DIGITAL SOUND FIELD PROCESSING (DSP)
Understanding Sound Fields
A sound field is defined as the “characteristic sound reflections of a
particular space.” In concert halls and other music venues, we hear
early reflections and reverberations as well as the direct sound
produced by the artist(s). The variations in the early reflections and
other reverberations among the different music venues is what gives
each venue its special and recognizable sound quality.
YAMAHA sent teams of sound engineers all around the world to
measure the sound reflections of famous concert halls and music
venues, and collect detailed sound field information such as the
direction, strength, range, and delay time of those reflections. Then
we stored this enormous amount of data in the ROM chips of this
unit.
Hi-Fi DSP Programs
Recreating the sound field of a concert hall or an opera house requires localizing the virtual sound sources in your
listening room. The traditional stereo system that uses only two speakers is not capable of recreating a realistic sound
field. 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 the
virtual sound sources in a full circle around the listener.
CINEMA-DSP
Filmmakers intend the dialog to be located right on the screen, the effect sound a little farther back, the music spread
even farther back, and the surround sound around the listener. Of course, all of these sounds must be synchronized with
the images on the screen.
CINEMA-DSP is an upgraded version of YAMAHA DSP specially designed for movie soundtracks. CINEMA-DSP
integrates the DTS, Dolby Digital, and Dolby Pro Logic surround sound technologies with YAMAHA DSP sound field
programs to provide the surround sound field. It recreates the most complete movie sound design in your audio room. In
CINEMA-DSP sound field programs, YAMAHA’s exclusive DSP processing is added to the right and left Main and
Center channels, so the listener can enjoy realistic dialogue, depth of sound, smooth transition between sound sources,
and a surround sound field that goes beyond the screen.
When a DTS or Dolby Digital signal is detected, the CINEMA-DSP sound field processor automatically chooses the
most suitable sound field program for that signal.
L SURROUND SOUND FIELD
R SURROUND SOUND FIELD
PRESENCE SOUND FIELD
DIALOG EFFECT MUSIC
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