Apple Logic Pro X - Manual (Page 875)

Chapter 25 Preferences, project settings, and key commands 875
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Bar Position displayed as SMPTE value fields: These fields become available if you select the
Enable Separate SMPTE View Offset checkbox. Choose Bar Position 1 1 1 1 displayed as SMPTE
00:00:00:00 (preset). If necessary, you can set other view offset values here.
The Tempo List always shows the real SMPTE time, never the SMPTE View Offset. The SMPTE
View Offset is used in all other windows (including the control bar).
Tip: It’s common practice in many video (and audio) post-production houses to set a one-hour
SMPTE offset (01:00:00:00). This avoids a problem commonly referred to as midnight, where a
pre-roll passes through SMPTE time 00:00:00:00, which causes issues with some tape machines
(such as the ADAT).