Sony DTC-87ES Operating Instructions Manual page 18

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Blank Section and Sound Muted Portion
Absolute Time Codes
With conventional analog audio tapes, the tape portion on
which no recording ever has been made and the portion on
which a recording has been made but the sound is muted
are treated the same, since no sound can be heard from
these portions.
However, with DAT cassette, you should know that the two
kinds of "no sound" portions must definitely be
distinguished one from the other.
Blank section
Means the portion on which no recording ever has been
applied.
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® : Recording
Sound portion
Means the portion on which a recording has been applied
but that no audible sound is recorded.
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®: Recording
Sound muted section :
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Important
When recording, be certain that not blank section is left on
the tape. If blank sections remain on the tape, search
operations using the AMS buttons, for example, may take
quite a long time.
Difference between the blank section and sound-muted
portion
When you record, a track format is constructed on the
recorded area, even if the sound is muted during
recording. On the blank section, since no recording is
applied, there is no track format. See page 44 for details on
the track format.
18
The absolute time codes correctly recorded on the tape
can be used in various convenient ways during playback.
Recording absolute time codes
When you record, the absolute time codes are also
recorded automatically from the beginning of the tape.
Note, however, that the absolute time codes are not
recorded if you start recording from the middle of blank
section. No blank sections should be left on the tape when
recording.
Ae for recording:
To insert silence between selections, use the record
muting function (page 22). Do not advance the tape with
mr oP.
e Tostart recording from the middle of the tape, use the end
search function (page 22) to locate the beginning of the
blank section. This will avoid leaving a blank section.
@ When loading the tape recorded the absolute time codes,
the ABS TIME indicator is displayed, otherwise, the
COUNTER indicator is displayed.
If a blank section is left on the tape
If you start recording from the middle of a blank section, the
absolute time codes are not recorded, since the DAT deck
can no longer count the absolute time from the beginning of
the tape.