Dolby Pro Logic Surround
The Dolby Pro Logic Surround Decoder program lets you
experience the dramatic realism and impact of Dolby Surround movie
theater sound in your own home. Dolby Pro Logic gets its name from
its professional-grade steering logic circuitry, which provides greater
effective channel separation for a much higher degree of realism than
the “passive” Dolby Surround circuits found in today’s typical home
audio/video equipment. Dolby Pro Logic Surround provides a true
center channel, so that there are four independent channels, unlike
passive Dolby Surround, which has in effect only three channels: left,
right, and rear. This center channel allows listeners seated in even
less-than-ideal positions to hear the dialog originating from the action
on the screen while experiencing good stereo imaging.
This Dolby Pro Logic Surround Decoder employs a digital signal
processing system. This system improves the stability of sound at
each channel and crosstalk between channels, so that positioning of
sounds around the room is more accurate compared with
conventional analog signal processing systems.
In addition, this unit features a built-in automatic input balance
control. This always assures you the best performance without
manual adjustment.
Manufactured under license from Dolby Laboratories Licensing
Corporation. Additionally licensed under one or more of the
following patents: U.S. number 3,950,590; Canadian numbers
1,004,603 and 1,037,877. “Dolby”, “Pro Logic”, and the double-D
symbol are trademarks of Dolby Laboratories Licensing
Corporation.
Dolby Pro Logic Surround + DSP
You can also enjoy Dolby Pro Logic with two modes of Digital
Sound field processing. These combinations expand the surround
effect. One is the “ENHANCED” Dolby Pro Logic Surround, which
recreates the surround effect of the 35 mm film movie theater. The
other is the sound field program “MOVIE THEATER”, which recreates
the listening experience of a 70 mm film theater.
Directional Enhancement Circuit + DSP
The YAMAHA directional enhancement (DIR. ENHANCEMENT)
circuit expands and focuses the digital sound field.
This effect puts you in the midst of the action, while centering and
focusing your attention to the screen. This circuit is available on
Sound Field programs “CONCERT VIDEO” and “TV THEATER”.
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