Sharp Aquos AN-ACS1U Operation Manual page 24

Enjoying surround sound (sound mode)
Dolby Virtual Speaker (DVS) sound mode
The Dolby Virtual Speaker (DVS) creates virtual surrounds comparable to the 5.1ch sound produced by the 2.1ch speaker.
When DVS is set to "ON" for 2 channel stereo signals, Dolby Pro Logic brings out virtual sound effects through the signals
converted into 5.1ch. (Page 20)
To set DVS to "ON", press DOLBY VIRTUAL
SPEAKER.
The Dolby Virtual Speaker indicator lights up.
Press DOLBY VIRTUAL SPEAKER again to return to "OFF".
NOTE
• When the DVS mode is set to "ON", the preset sound mode and Audistry (SOUND SPACE mode, MONO TO STEREO mode) are canceled.
(The NATURAL BASS mode and the INTELLIGENT VOLUME mode are not canceled.)
• Monaural signals do not generate surround effects.
• DVS sound effect may not be obtained depending on signal types (the
In such a case, set the DVS mode to "OFF".
22
ON
The Dolby Virtual Speaker creates multichannel-like sound
effects.
Compared with the MOVIE mode, the bass sound level is
slightly reduced.
The Dolby Pro Logic indicator also lights up if 2ch sound
signals are detected.
OFF
The Dolby Virtual Speaker is deactivated.
VS indicator blinks).