Pre-Roll & Post-Roll - Alesis BRC Reference Manual

The rear panel Punch In/Out jack accepts any momentary, single
pole/single throw footswitch. During power-up, the BRC checks the
footswitch to determine whether it is normally open or normally
closed type, and calibrates itself accordingly. If you use a footswitch
and its operation seems "reversed," make sure it is firmly plugged
into the jack, then turn off the BRC, wait a few seconds, and turn the
BRC on again. It will calibrate itself to work with the footswitch.
Here's how the Punch In/Out footswitch works:
• If a track (or tracks) is record-enabled, and the tape is playing,
pressing the punch footswitch puts the track(s) into record mode
at the instant you punch. This is equivalent to pressing PLAY and
RECORD to enter record mode.
• If the BRC and ADATs are already in record mode, pressing the
footswitch punches out of record (the tracks will remain record-
enabled should you need to punch in again later on) and the tape
will continue to play.
The Punch In/Out footswitch jack can also be used for connecting an
LRC Remote Control. The Punch In/Out footswitch and the LRC
cannot be used at the same time, since they occupy the same jack,
unless you connect them with a Y-cord. However, you can
interchange them if you observe certain precautions (see section
4.1H).
4.4 PRE-ROLL & POST-ROLL
It is often desirable to hear a few seconds of music prior to a locate
point. Conversely, you may wish to have the tape play a few seconds
beyond the Loop End point, when looping. The Pre-Roll and Post-
Roll functions allow you to do just that. Pre-Roll lets you determine
how far ahead the BRC should locate by –– up to 20 seconds, in tenths
of a second increments. Post-Roll is exactly opposite of Pre-Roll.
Enabling the Post-Roll function will cause the tape to stop after a
specified period of time after the Loop End point is reached.
The PRE-ROLL button lets you enable and disable the Pre-Roll
function. When this button is pressed, its LED turns on to indicate
that Pre-Roll is active. When Pre-Roll is active, during locate and
return operations (like Loop), the tape(s) will go to a point prior to the
locate point by the amount you specified.
The POST-ROLL button lets you enable and disable the Post-Roll
function. When the button is pressed, its LED turns on to indicate
that Post-Roll is active. When Post-Roll is active, the tape(s) will go to
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