Sony DR-GA500 - Manual (Page 17)

17 GB Operation
To select your preferred sound field (EFFECT function)
The EFFECT switch allows you to select your preferred sound field.
With 5.1ch, 2ch, or USB is connected when “FPS” or “SURROUND” is selected, the built-in
Dolby Pro Logic IIx decoding will provide a similar sense of realism to 7.1ch. However, if the
INPUT switch position does not match the connection, the EFFECT function will not work
properly.
Front panel of the processor
Position of switch Sound field mode and suitable sound source
FPS (First Person Shooting) This setting provides clear localization of sounds respective of image.
This is the recommended setting for FPS where locality of sounds need to be
accurately perceived. The sound is listener-friendly, natural, clear and realistic. It
is characterized by very sharply perceived localization of all channels.
SURROUND This setting provides a seamless reproduction of all channels.
The overall sound is perceived more as a whole than with the FPS mode, and
provides the best sound field for playing multichannel surround games in general.
Also recommended for movie watching.
OFF 2ch sound is output.
A multichannel source (7.1ch/5.1ch) is downmixed to 2ch sound.
Note
The EFFECT function does not work for monaural sound sources.
About property of sound with the EFFECT function
 The EFFECT function may not be obtained from sound sources that do not incorporate video, such as
music CDs.
 VPT (Virtualphones Technology) simulates the average human HRTF (head-related transfer function)*.
The effect is perceived differently, depending on individual.
* HRTF = Head-Related Transfer Function. A mathematical measurement to show changes in sound
between the source and your ears.
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