SMPTE, Sync, and Offset, Chapter 11

11-4 ALESIS M20 REFERENCE MANUAL 1.06

11.5 REFERENCE COUNTER
This button cycles through the reference counter display options (this display is above the
Reference Counter button). The selected display option (just below the display digits) shows
one of the following times:
• SMPTE In Incoming time code
• Locate Pt 2-digit locate address shown in the Locate Pt block
• Tape TC TC track time code
• Int Generator Internal generator time code
• Offset Tape or chase offset
11.6 SMPTE CHASE
This switch toggles Chase mode on and off. When enabled (Chase LED on), the M20 chases
(follows) any external SMPTE Time Code input.
To display or edit the chase parameters, press the Edit button then the SMPTE Chase button.
There are 4 pages of parameters. Pressing the SMPTE Chase button cycles through the 4
pages.

11.6A SET SMPTE OFFSET VALUE (PAGE 1)

You may specify a SMPTE offset (up to ±24 hours) that is added to or subtracted from the
Time Code reference (either ABS TIME or TAPE Time Code). Example: If you add an offset of
00:01:00:00 (1 minute), the M20 interprets an incoming SMPTE time of 00:05:30:00 as
00:06:30:00, and the SMPTE Tape Counter display shows 00:06:30:00.
Note: To edit the Samples field, select the Subframes field, then press the Cursor Right button (for
more on subframes, see section 3.3).
Operation You press… You see…
Select field to edit Left/Right Arrow
buttons to scroll to
desired field
Selected field flashes
Change sign (+ to add
offset, - to subtract) Up/Down buttons Flashing sign changes
from + to -
Change numeric field
value Enter two-digit number
from keypad (leading
zeroes must be entered)
or use Up/Down buttons
Field to be edited flashes,
then is replaced by your
entry
Exit SMPTE Offset setup Edit button or any other
Edit Group button Display leaves SMPTE
Offset function