Sansui SE-99 Instruções de Operação Página 13
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COMPENSATE
NOISE
REC
Automatic
tape
characteristic
compensation
function
The frequency characteristics obtained during
re
cording and playback
using a tape deck sometimes have marked peaks and troughs due
to
the
frequency characteristics
of
the tape deck or the tape used .
This
unit
can
be
used
to
analyse
the
peaks and troughs in the fre-
quency characteristics and automatically set
an
equalizer curve hav-
ing reverse characte
ri
stics, enabling
flat
frequency characteristics to
be
obtained.
1. Operate the tape deck and
start
recording.
2.
Pr
ess the NOISE
REC
switch
ON
(the indicator above the
switch
will
light).
Pink noise
will
be
output
from the TAPE
REC
terminal, and after
the
lapse
of
the period
which
is necessary
for
measurement (ap-
prox.
10
seconds),
an
electronic tone
will
be
emitted.
3. When the electronic tone is emitted, stop recording on the tape
deck. then pre
ss
the
NOISE
REC
switch
OFF
(indicator will go out).
4. Press
the
1 or 2 TAPE MONITOR
sw
it
ch
ON
(the indicator above
the
switch
will
light). Press
the
switc
h corresponding
to
the ter-
minal
to
which
the tape deck is connected.
5. While playing back recorded pink noise, either pre
ss
the
light
pen
against the
COMPENSATE-TAPE indicat
or
and press the
switch
,
or press the
COMPENSATE-TAPE
button
on the remote control
microphone. The
COMPENSATE-TAPE indicate will flash .
Next. set the reverse recording
or
playback characteris
tic
s as
flat
data using the same procedure
as
that
used for automatic space
sound compensation.
* You can memorize flat data
in
the same
way
as
data for a normal
equalizing curve
in
the user's memory circuit s
(1
to
5)
.
* Because
of
the
characteristics
of
the tape,
16
Hz
and
32
kHz are
set
to
0 dB
without
applying compensation.
12
If
you change the tape deck or use a
different
type
of
tape, per-
form measurement again.
In the following cases, the UNDER LEVEL indicator
will
fla
sh
and
an e
le
ctronic tone will be emitted.
-If
the COMPENSATE-TAPE mode is activated before pink noise
is emitted.
In this case, repeat step 5.
-If
the
pink noise recording
le
vel is
low
.
In this case, raise the recording level. and repeat steps 1
to
5.
Note
that
if
the NOISE
REC
swi
tch is set
to
ON
. the COMPEN-
SATE TAPE mode cannot
be
activated.
I'
COMPENSATE
- TAPE
.11111111.
TAPE MONITOR
1 SOURCE 12
'Reverberation
time
measuring
function
This
unit
is pr
ov
id
ed
wi
th a function which indicates reverberation
time
as
r
ea
l time for each frequency. This func
ti
on allows you to ob-
tain a near-optimum reverberation time
by
rearranging furniture and
carpets, etc., in your listening room while repeating measurement
s.
Measure the reverberation time u
si
ng the
following
procedure.
1.
Insert the plug
of
th
e remote control microphone (or condenser
microphone) i
nto
the MIC jack, and
se
t the
power
switch
ON.
2. Set the microphone at the listening point
so
that
it
faces a
point
mid-
way
between the
left
and right speaker systems.
3.
Set the volume control of the amplifier to the normal listening
le
ve
l.
4 . Press the li
ght
pen
aga
i
nst
the
REVERB
TIME indicator and press
the
switch
, or press the R. TIME button on the remote control
microphone. The
RE
V
ERB
TIME indicator
will
flash.
5. The line
input
will
be
automatically cut
off,
and pink noise will be
emitted from the speaker systems
of
both channels.
The level of the pink noise
wi
ll
be
low
at first, then gradually in-
crease until it reaches the necessary level for measurement. Then,
after a fixed interval, the
level
will
be measured and
the
computer
will
calculate the interval nece
ss
ary for
th
e level
to
be attenuated
by
60
dB.
This measurement
will
take place once for each fr
eq
uency except
16
Hz and
32
kHz,
that
is, a total
of
10
times, and during each
measurement the
re
verberation time
will
be
displayed
in
steps
of
0. 1 second on both channel displays.
6. Upon completion
of
measurement, the
REVERB
TIME indicator will
stop flashing and gl
ow
steadily.
If
the necessary level for measurement is
not
obtained even when
the
output
level
of
the
pink noise is maximum, the UNDER
LE
V
EL
in
di
cator w ill flash, and
an
electronic tone
will
be
emitted.
Like the data for a normal equali
ze
r curve, this reverberation time
data can
be
memorized in the user's memory circuits (,
to
5).
To interrupt measurement, press the light pen against
the
RESET
indicator and press
th
e swi
tch,
or press
the
RESET
button
on the
remote control microphone.
Remember al
ways
to set
th
e
power
swi
tch
to
OFF
after having
used
the
microphone.
* Note
that
if
there is external noise
or
air conditioning noise, ac-
curate data
cannot
be created.
If
the
magnitude
of
the noise is large, measurement
may
some-
times be impossible.
- OPERATING INSTRUCTIONS 1
- MODE D'EMPLOI 1
- INSTRUCCIONES 1
- I ESPAliioL I 3
- 0 0 0 0 0 4
- VOLTAGE 5
- SlUCTOfI 5
- VOLTAGE SELECTOR 5
- '" 6
- ________________________ 7
- ± 6 dB 8
- * The display 9
- "'" 10
- "" 11
- --- - - - - --- - 12
- I' 13
- _______________________ 14
- + 1.6 dB, 14
- Printed in Japan 15
- <48991800> 15
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