Instruction Manual

836 Synchronizing Your Gear
SMPTE/MIDI Time Code Synchronization
Note: If you want SONAR to switch its clock source to SMPTE/MTC
automatically when SONAR receives a SMPTE/MTC signal, you can
choose this option on the Timecode tab of the Global Options dialog.
See:
Playing Digital Audio under SMPTE/MTC Sync
SMPTE/MTC Sync and Full Chase Lock
Troubleshooting SMPTE/MTC Sync
Playing Digital Audio under SMPTE/MTC Sync
SONAR gives you two choices for controlling audio playback when using
time SMPTE/MTC Sync:
Some digital sound cards (such as the Frontier Design Wavecenter or the
Antex Studio Card) have external clock inputs. If you are using one of these
cards, and an external clock source like a digital tape deck is the master
timing source for the project, choose the Trigger and Freewheel option. The
clock input on the audio card guarantees that there is no drift between the
time code and audio playback.
To Set the Audio Playback Option
1. Choose Options-Audio, and click the Advanced tab.
Option… How it works…
Trigger and freewheel Audio event playback is started (or triggered) at
the exact time code, but then the audio plays at its
own internal rate (or freewheels). When audio
freewheels, it can gradually drift from the time code
due to variations in the time code signal.
Full chase lock The speed of audio event playback is continually
adjusted to stay in sync with the time code. If the
external clock drifts or changes rate, SONAR
adjusts the audio playback speed to stay in sync.
This adjustment may introduce slight pitch
changes, but those changes will be negligible if the
external clock is reasonably steady.