ProScan PS20112 Owner's Manual page 15

Expanded Stereo
_bur TV'includes an Expanded Stereo feature which adds
greater depth and dimension to stereo broadcasts. Your TV
electronically increases the audio separation perception of
tile speakers so you perceive an "expanded" more spacious
sl ereo sound effect.
.AJthough you can easily turn the expanded stereo feature
on and off as desired, you may prefer to leave it turned on.
"['hat way your TV will automatically process and expand
the stereo signals whenever a stereo broadcast is received
(or whenever a stereo tape is played through a stereo VCR
connected to the TV's audio/video jacks labeled iNPUT).
Because this feature expands stereo sound, it processes
only stereo signals. If a TV program is broadcast in mono
instead of stereo, your TV will automatically reproduce
monaural audio. You will not be able to hear Expanded
Stereo because expansion has no effect on monaural audio.
Stereo expansion enhances the ambience of music and
program material. Dramatic effects of spatial enhancement
can be experienced with music. Talk shows with
background crowd noise also benefit from expansion by
engulfing the listener in a wider sound field than would be
experienced without expanded stereo. The effect will vary
with program material.
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"['he perception of greater stereo separation is created by
cancelling the cross-coupled sound from the right speaker
that arrives at the left ear (and the left speaker that arrives
at the right ear). Like stereo headphones, stereo expansion
isolates the left and right signals that arrive at the ears. As
a result, the speakers seem to be farther away from the TV.
Notes: The Expanded Stereo feature will have no effect unless the
p rogram is broadcast in stereo.
When the Expanded Stereo feature is turned on, some sound will be
heard from each speaker regardless of the BALANCEcontrol setting.
Resettingthe Audio Functiont,_Hear ExpandedStereo
with or without remote
1 Press the MENUbutton repeatedly to select the AUDIOMENU
and then press + to display th(: audio menu.
I I I
;Tllilr¢l _n:u.
2 Press the MENUbutton repeatedly
to select the
EXPAND STEREO
display.
'Treble " "_'_ . ...... " ' ' "
Balance , _,,L;.L,;;;d,+ "
Stereo/SAP:Steieo, "
_:,. :,/::.
X_e. " ' ""- .......1 ........ +
Balance ,"-, .......I....... +
Stereo/SAP:' Stereo
Press either + or- to turn on Expanded Stere(). Each time
you press the + or-button, tl_e on-screen display will change
from ON to OFF, etc.
To Hear ExpandedStereo
1 The STEREO/SAP function must be set to
STEREO.
You will not
hear expanded stereo if this
function is set to MONOor
SAP. Details are on page 10.
The EXPAND STEREO function
must be set to ON. You will
not hear expanded stereo if
this function is set to OFF.
A stereo signal must be
present. You will not hear
expanded stereo on TV
programs if the TV station
is broadcasting monaural
audio. You can, however, hear expanded stereo if you play a
stereo tape on a stereo VCR that is connected to the TV's
audio/video jacks labeled INPUT.
Normally, you can leave the STEREO/SAPfunction set to
STEREOand the EXPAND STEREOfunction set to ON. Your TV
will then automatically produce either expanded stereo or
monaural sound, whichever is broadcast.
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