Yamaha RP-U100 Owner's Manual page 64

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DSP Sound Field Programs
The unique acoustic characteristics of a given space.
In locations such as a concert hall, we of course hear the direct sound coming for example from an instrument. But our
ears also pick up the so-called early reflections, which is the sound being reflected from boundaries such as walls,
floors and the ceiling. Finally, we hear reverberation, namely the sound being repeatedly bounced back and forth and
gradually decaying.
The early reflections and reverberation characteristics depend on factors such as the size and shape of the interior
space and the type of furnishing. The resulting acoustics are unique to a particular hall or room. This is what is called
a "sound field."
Yamaha has collected a vast amount of sound field data at famous concert halls, opera houses, and other venues
around the world. These data include the direction of reflections, their intensity, frequency characteristics, delay time,
and many other factors.
The RP-U100 incorporates sound field programs based on such sound field data. The programs let you select the
sound field of a famous concert hall or theater to be recreated on your personal computer equipment setup.
DSP sound field programs for music
The DSP programs for music create a sound field giving the realistic impression of being in a specific location. The
original signal is passed unchanged to the output, while sound field information is added by means of DSP processing.
Also with multichannel source material encoded in Dolby Digital, the decoded signal is reproduced unchanged with only
the ambience components added. This allows you to enjoy the sound of a world-famous concert hall, church, or other type
of location.
DSP sound field programs for Audio Visual
These DSP programs were specially developed for game or movie sound reproduction. The
action of surround decoders for Dolby Pro Logic and Dolby Digital is fused with the Yamaha
DSP, resulting in quality sound such as would be heard in the final mix of a completed movie.
The RP-U100 lets you reproduce this sound in your own personal space.
DSP Sound Field Program
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