Recording Level Adjustment; Record Muting - Sony PCM-F1 Operating Instructions Manual

RECORDING LEVEL ADJUSTMENT
The PCM recording system has no reference level, but an absolute
maximum value of 0 dB. If all the input signals are recorded under
0 dB, the PCM·F1 assures equa l c haracteristics at any input level.
Th is is why the peak program meters of this unit have no plus in·
dication.
It must be noted that the peak program meters show the pre·
emphasized input signal levels. See the diagram below. For this
reason, it is important to adj ust the recording level so that there will
be no clipping over 0 dB. (For details on emphasis and peak pro·
gram meters, refer to page 25.)
CD
+ 10
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.s:
+5
.,
0
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c:
- 5
0
a.
- 10
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.,
a:
u
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I 'Ill
Pre-emphasis (recording
l
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De-emphasis (playback
l ll
100
500 1k
5k 10k 20k
Frequency in Hz
· Adjust the recording level with the REC LEVEL controls so that the
peak program meters do not deflect over 0 dB. The red illuminat ion
of the OVER indi cators warns of an overload during recording. If
the indicators illuminate frequently, the recording level setting is
too high, and this will result in overloaded and distorted recording .
Intermittent illumination present s no problem. If the recording level
setting is too low, the recording will be noisy.
The correct recording level setting depends upon the program
source to be recorded . Generally, adjust the level to about - 15 dB.
RECORD MUTING
By us ing the REC MUTE button during reco rd ing, you can provide
an interspacing in the recording , eliminating unwanted program
material such as commer.c ials.
While the record muting is operating, t he incoming signal is not
recorded on the tape but it contin ues to register on the meters and
feed t o the monitor so that yo u know exactly what Is go ing on.
To insert a blank
Hold down the REC MUTE button for as lon g as you want the blank
segment on the tape to be. When you release the button, the
recording will resume.
Keep depressed for as long as you want
the blank segment on the tape to be.
13