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DSP SURROUND SIMULATION
• The AVR-2801/981 is equipped with a high performance DSP (Digital Signal Processor) which uses digital signal processing to synthetically
recreate the sound field. One of six preset surround modes can be selected according to the program source and the parameters can be
adjusted according to the conditions in the listening room to achieve a more realistic, powerful sound. These surround modes can also be used
for program sources not recorded in Dolby Surround Pro Logic or Dolby Digital.
Surround modes and their features
1
MONO MOVIE
(NOTE 1)
Select this when watching monaural movies for a greater sense of expansion.
2
ROCK ARENA Use this mode to achieve the feeling of a live concert in an arena with reflected sounds coming from all directions.
3
JAZZ CLUB
This mode creates the sound field of a live house with a low ceiling and hard walls. This mode gives jazz a very
vivid realism.
6
VIDEO GAME Use this to enjoy video game sources.
4
MATRIX
Select this to emphasize the sense of expansion for music sources recorded in stereo. Signals consisting of the
difference component of the input signals (the component that provides the sense of expansion) processed for
delay are output from the surround channel.
5
5CH STEREO
In this mode, the signals of the front left channel are output from the left surround channel, the signals of the front
right channel are output from the right surround channel, and the same (in-phase) component of the left and right
channels is output from the center channel. This mode provides all speaker surround sound, but without directional
steering effects, and works with any stereo program source.
*
Depending on the program source being played, the effect may not be very noticeable.
In this case, try other surround modes, without worrying about their names, to create a sound field suited to your tastes.
NOTE 1: When playing sources recorded in monaural, the sound will be one-sided if signals are only input to one channel (left or right), so input
signals to both channels. If you have a source component with only one audio output (monophonic camcorder, etc.) obtain a “Y” adaptor
cable to split the mono output to two outputs, and connect to the L and R inputs.
NOTE:
Only the DIRECT mode can be used when playing PCM signals with a sampling frequency of 96 kHz (such as from DVD-Video discs that
contain 24 bit, 96 kHz audio). If such signals are input during playback in one of the other surround modes, the mode automatically switches
to DIRECT.
Personal Memory Plus
This set is equipped with a personal memorize function that automatically memorizes the surround modes and input modes selected for the
input different sources. When the input source is switched, the modes set for that source last time it was used are automatically recalled.
*
The surround parameters, tone control settings and playback level balance for the different output channels are memorized for each
surround mode.