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C
HAPTER
B
ASIC
This chapter is designed for operators who may not have experience working with
digital audio. All functions of the XT20 (with the exception of synchronization and
digital audio) are explained here in detail. If you are already familiar with
multitrack recording concepts, you may not need to read this chapter. Instead, use the
Operational Reference chapter to look up specific functions and how to access them.
T
APE
Formatting a tape is a simple yet necessary operation before recording can
begin. This process involves recording sample rate information in the data
section, and time-stamping the tape with a highly accurate time reference
which, because of its single-sample resolution, has greater resolution than
SMPTE timecode. Formatting a tape is what allows for accurate
synchronization, autolocation and auto recording functions, as well as accurate
TIME counter readings. You can either format a tape completely before
recording, or format while you are recording for only as long as you need to, or
you can extend the format of a tape that was not completely formatted to begin
with.
Formatting a tape erases the audio on all 8 tracks. Be sure to label your tapes
clearly, so you don't accidentally erase something valuable. We recommend
that you completely format your tapes from beginning to end.
F
ORMATTING
ADAT XT20 Reference Manual
4
O
PERATIONS
F
ORMATTING
C
ONSIDERATIONS
•
Blank tapes will automatically be rewound to the beginning
before formatting.
•
Before formatting, select the sample rate that you will be using
(either 48 kHz or 44.1 kHz). See page 51 for more information.
•
Before formatting, select the word length that the tape will
use (either 16-bit Type I or 20-bit Type II). This format type may not be
changed after formatting. Type II tapes will not play in older, Type-I-
only ADATs. Type II has higher audio quality and should be used
whenever possible if backwards-compatibility is not a concern.
•
To record on or erase/format a S-VHS cassette, the write
protect tab (located on the spine of the cassette) must be intact. If you
try to record on a tape that has had the write protect tab broken off,
the PROTECT icon in the display will light and the XT20 will not
record on the tape. This prevents accidental erasure of valuable
recordings. To record on a tape that has had the tab broken off, use the
Write Protect Override feature (see page 39).
Connections: Chapter 3
43
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