Apple Logic Pro 7 User Manual download pdf (Page 609)

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Chapter 19 Synchronization 609

“Auto Detect” only switches to 29.97 df or 30 nd if one of the other conventional

formats was previously set. If you want to synchronize Logic to one of these

unconventional frame rates, you need to define the format manually. This setting will

not be altered by “Auto Detect”.

Validate MTC

This pull-down menu option allows you to specify how often Logic checks for incoming

time code, in order to ensure synchronization. In general, you should leave this option

set to always. There are some devices, however, that generate timecode pulses that

may require a specific number of frames to be set, in order to maintain synchronization.

The never, Jam Sync option basically sets Logic to “free-wheel” if synchronization is lost.

In other words, Logic will run on its own internal clock (at the most recently received

tempo) if the synchronization pulse is lost. This approach ensures that recording will

continue, even if the incoming timing pulse fails.

SMPTE Offset

This is where you set the SMPTE offset for the song. As songs don’t always need to start

precisely at bar 1, you can select any bar position to be played at the set SMPTE time.

The preset is 1/1/1/1 at 1:00:00:00. The SMPTE offset 1:00:00:00 is normally used,

because it allows you to pre-roll an amount of time code.

SMPTE View Offset

If you want to see the absolute time from the start of the song in Logic’s time display,

rather than the actual SMPTE time, click Enable separate SMPTE View Offset. Then 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.

You can individually set each open Transport window to display SMPTE time with or

without a SMPTE View Offset, via the “arrow” menu Use SMPTE View Offset option.

Audio

MTC [fps]

This display shows the deviation between the incoming MTC, and its nominal frame

rate.

If the deviation is too large, please make sure that you have set the right frame rate (on

the General page of the synchronization window). If in doubt, set the frame rate to

24 fps and switch on Auto detect format of MTC.

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Apple Logic Pro 7 User Manual Page 609

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