Automatic-equalization button (auto EQ)
Press this button for automatic correction of the sound-field. When this
button is pressed , the indicator will illuminate; when the function
is
completed , illumination will stop . If a microphone is not connected , this
button will not function.
(See page 1 0
.)
t Lock button (lock)
This button
is
used to lock the direct-equalization level-control function .
When this button
is
pressed, the indicator will illuminate; when it
is
pressed once again, the lock is released .
Preset-memory buttons (preset memory)
These buttons are used to preset the equalization curves into
the memory. After curves have been preset into the memory, it
is
then possible to quickly and easily select the desired curve
by simply pressing the corresponding button.
There are eight memory areas: three are for fixed-equalization-
level memory, and five are for use by the user.
(See page 12.)
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Equalization button (EQ)
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This button
is
used to switch the equalization correction
function
ON
and OFF.
When this button
is
pressed, the indicator will illuminate; when
it
is
pressed once again, the function is switched OFF, and the
equalization function is not applied .
'---_~_
__________
Display mode buttons (display mode)
These buttons are used to select either the display of the
spectrum or of the equalization level.
EQ
level : When this button
is
pressed , the
equalization level is shown
on
the dis-
play.
Equalization-add button
(EQ
plus)
spectrum analyzer: When this button
is
pressed , the spec-
trum
is
shown on the display.
Press this button to combine
two or more equalization
curves.
(See page 13
.)
Memory button (memory)
To enter
an
equalization curve into the memory,
first press this button, and then, while the
indica-
tor
is
flashing (about 4 seconds), press one of the
preset-memory buttons to complete the
memori-
zation of the equalization curve. (See page 12.)
Pink-noise button (pink noise
This button can be used to switch
ON
and OFF the
" pink" noise used when measuring the sound-field
frequency response or correcting the sound-field.
If a microphone is not connected, this button will not
function .
(See page 1 0.)
-7-
Pink noise
•Pink
noise is used for measurement and
correction of the sound field frequency
re-
sponse because it
is
mostly within the audi-
ble range, its energy distribution is uniform ,
and it has a wide frequency band.
•Because
pink noise has large instantaneous
level fluctuations, the display may fluctuate .
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