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TAPES
Analog audio recorders typically move tape past the heads at
anywhere from 1-7/8 to 30 inches per second. Higher speeds result in
a higher bandwidth, or ability to record high-frequency signals.
ADAT's digital audio signals require much higher bandwidth than
analog audio. In addition to moving the tape faster to handle the
increased bandwidth, ADAT's VHS mechanism rotates the head itself
at a very high speed and uses diagonal tape tracks. As far as the head
is concerned, the tape appears to be moving by at a more rapid speed.
With ADAT, the tape is "engaged" if the tape is not moving but
comes in contact with the spinning head. This allows for going into
play or record faster, as well as "cue" and "review" functions that let
you monitor the tape audio during fast forward or rewind,
respectively. When the machine is paused, the head remains
spinning, and the tape is not disengaged from the head.
When the tape is "disengaged", the head is not spinning and it takes
slightly longer to go into play or record. This is because the tape
moves away from the head in order to prolong tape and head life.
Cue and review are not possible while the tape is disengaged, but
rewind and fast forward speeds are much faster.
If the tape is engaged, and no transport activity (play, record, rewind,
etc.) occurs for 4 minutes, the tape will automatically disengage itself
to minimize tape wear.
1.4 BASIC OPERATION
In general, the operation of the BRC is similar to most currently
available multitrack remote controllers. Almost all functions can be
enabled and edited by incorporating the following displays and
buttons.
1.4A Displays
There are three displays on the BRC. The top two are LED displays.
The leftmost 3-digit LED display is used to indicate the PITCH
CONTROL value (the range of this value is -300 through +100 cents).
See section 4.0 for more information on pitch controls.
The larger, 8-digit LED display is the current TAPE LOCATION
counter. The lower display is a 2x16 backlit LCD, and is used for
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