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Using PowerTouch
Audio-Video Receiver KRF-X9992D 17
• Stereo: Stereo listen mode provides standard stereo sound to
the front left and right speakers.
• Dolby 3 Stereo: Use Dolby 3 Stereo for systems that do not
have surround speakers. When in the Dolby 3 Stereo mode,
surround information is redirected to the front left and right
speakers. This mode is designed for use with Dolby Surround
sources, but can also improve sound imaging and definition
for programs that are not Dolby Surround encoded.
• Dolby Pro Logic: Dolby Pro Logic is a decording process
which provides theater-like surround sound from Dolby
Surround encoded sources (such as videotape and LaserDisc
software that are marked with the Dolby Surround logo). It
offers excellent sound movement across the front of the room
and a surround ambiance that seems to immerse you in a
movie. Your receiver is equipped with a Dolby Pro Logic
surround decoder to let you enjoy the wide variety of cur-
rently available Dolby Surround home video software.
• DSP (Digital Signal Processing): DSP allows you to create
your own custom surround sound environments and use
them with any source (except Dolby Digital and MPEG). You
can select the ambience of an Arena, Jazz Club or Theater,
and then modify the parameters to ‘fine-tune’ the environ-
ment to your taste. (See “Applying Digital Signal Processor
(DSP) Effects” on page␣ 22 for details about making DSP
adjustments.)
• Dolby Digital (AC-3): Dolby Digital uses an encode/decode
process based on its theatrical digital surround sound
technology. The five main channels are full-frequency and
independent, so sound can completely envelop you or soar
anywhere in the room, just like at the movies.
Compared with Dolby Pro Logic, Dolby Digital has more
clarity, greater surround envelopment, and more realistic
sound movement between channels.
How Do I Adjust the Sound?