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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.
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.
2. Check the desired option from the Synchronization list.
3. Click OK.
Audio playback under time code sync is handled according to the setting you chose.
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.
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