Alesis BRC Reference Manual page 35

no track delays are in effect.
To display/edit the currently stored track delay times:
1. Press the EDIT button (the EDIT button LED will go on to indicate
you are in edit mode);
2. Press the TRACK DELAY button. All the record and input track
LEDs will turn off and no longer reflect the current
record/monitor status;
3. Select a track by pressing its track button. Its red LED will light to
indicate it is the currently selected track and the display will show
its current delay time. Tracks which have a delay time set greater
than zero will have their green LEDs lit;
The display will look like this:
Track delay:
X XX.X ms
...where XXX.X is the delay time in milliseconds.
4. The delay time may be changed for the selected track by using the
Numeric Keypad and UP/DOWN buttons. The value is read in
milliseconds and you can increment or decrement in 0.1 ms steps
within the range of 000.0 and 170.0 ms. When the delay is
changed, the green LED of the respective track will reflect the new
delay status (off if no delay, on if it is being delayed);
5. Pressing the TRACK DELAY TIME button again will enter a
second page, which displays the delay time in number of samples:
Track delay: s sss
samples
Note: The delay time that is displayed is only accurate while playing
at normal pitch (48KHz) sample rate, and will not compensate for
pitch changes or external clock variations.
6. The delay time may be edited just as described above. The samples
range from 0 to 8160 (48 samples = 1 ms);
7. Press the TRACK DELAY TIME repeatedly to toggle between these
two pages (milliseconds and sample);
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