CAKEWALK sonar x3, Справочное руководство

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Synchronizing your gear
SMPTE/MIDI time code synchronization
SMPTE/MIDI time code synchronization
SMPTE/MIDI Time Code Sync (SMPTE/MTC) is another method of synchronization that lets
SONAR act as a master or slave to external devices. SONAR can send or receive SMPTE/MTC
messages to or from external devices that can generate or receive MTC. SONAR can send MTC on
multiple output ports simultaneously.
SMPTE/MTC is a position and timing reference that indicates the current location in the project and
how quickly the project should be playing. Time code labels the position in a project in hours,
minutes, seconds, and frames. The speed of playback is indicated by a
frame rate .
Time code is recorded onto tape using a device called a time code generator. The process of
recording a time code signal onto a track is called
striping . Normally, the start of a tape stripe has a
particular time, expressed in hours, minutes, seconds, and frames. For example, the tape stripe
might start at 00:00:00:00, 01:00:00:00, or any other time. The material recorded on the tape usually
starts anywhere from 10 seconds to several minutes after the start of the time code. Sometimes, the
tape stripe starts at a time like 00:59:50:00, and the material starts 10 seconds later, at 01:00:00:00.
When you create a new SONAR project, by default the project is configured so that the beginning of
bar 1 is synchronized with a time code of 00:00:00:00. If the starting point of the material on your
tape or external project is not 0, you need to enter an offset to tell SONAR the time code that
corresponds to the start of the project.
To enter an offset
1. Go to Edit > Preferences > Project - Clock .
2. Specify the desired offset in the SMPTE/MTC Offset field. To enter an offset of 15 seconds, type
0 , 0 , 15 and hit ENTER. The SMPTE/MTC Offset value should now be 00:00:15:00 or 15
seconds.
Frame rates
Seven time code frame rates are supported in SONAR, which are normally used for the following
types of applications:
External Timecodes
Cakewalk
Setting
Description
23.976 frames per second 23.976 FPS Typically used with H.264/MPEG-4 AVC video.
24 frames per second 24 FPS Used for theatrical film worldwide. Any film in North
America or Japan uses this setting.
25 frames per second
(EBU timecode) 25 FPS Used for PAL/SECAM video, 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.
Table 221.