Reference Guide

1155

Synchronization overview

Synchronizing your gear

The Sync module in the Control Bar lets you change back and forth quickly between the different

clock settings.

Figure 340. The Sync module.

A. SMPTE/MTC format B. Incoming timecode C. Sync type D. Transmit MIDI Sync E. Transmit MTC Sync

The Sync module contains the following controls:

• SMPTE/MTC format. Select the time code format. The following frame rates are supported:

• 23.976 frames per second (FPS). Typically used with H.264/MPEG-4 AVC video.

• 24 frames per second (FPS). Used for theatrical film worldwide. Any film in North America

or Japan uses this setting.

• 25 FPS. Used for PAL/SECAM video and some film in countries that use 50 Hz wall

electricity. This is the setting to use when synchronizing to any European video format.

• 29.97 FPS Drop. NTSC broadcast and long format video in North America and Japan. This

setting synchronizes the video perfectly with SONAR, but the sequencer position displayed in

the Now Time and Big Time displays will gradually drift and become incorrect over long

periods of time. The audio and MIDI synchronization to the external device will not be affected

by this discrepancy.

• 29.97 FPS Non Drop. NTSC non-broadcast and short length video in North America and

Japan. Used for some music projects. This setting synchronizes the video perfectly with

SONAR, but the sequencer position displayed in the Now Time and Big Time displays will

gradually drift and become incorrect over long periods of time. The audio and MIDI

synchronization to the external device will not be affected by this discrepancy.

• 30 FPS Drop. Not a standard type of timecode, used rarely for speed correction and transfer

problems in tape based systems.

• 30 FPS Non Drop. Most music projects and some film in North America. This is the best

choice for any music project and should be used unless the situation dictates otherwise.

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