Instruction Manual

827
Choosing Clock Sources: SONAR as Master
Synchronizing Your Gear
projects might be set up to use the internal clock; a second might use the
Audio clock and MIDI Sync with SONAR as the master timing source; and
another might use SMPTE/MTC Sync as the clock source.
Many technical support requests concern synchronization problems, which
are among the hardest to diagnose and duplicate over the phone. If you
experience problems, before you call, perform as much experimentation
and gather as much information as possible about what does and doesn’t
work. The more prepared you are, the more we can help.
Choosing Clock Sources: SONAR as
Master
When SONAR is used alone, or with an external device that does not have
its own clock or timing signal, you use one of two clock sources: Internal or
Audio.
When the clock source is set to Internal, SONAR uses the clock built into
the computer or the computer’s MIDI interface as its timing source. If your
projects contain only MIDI (no audio), this is the most efficient method of
playback.
If your projects contain MIDI and audio, or only audio, you should set the
clock source to Audio. This lets the sound card clock determine the correct
speed for audio playback and automatically synchronizes MIDI playback to
match the audio. For more information, see System Configuration. You
cannot use the tempo ratio controls when using the audio clock, because
the audio playback speed is determined by the audio clock.
When either of these clock sources is used, you can also configure SONAR
to drive other MIDI devices using MIDI Synchronization. For more
information, see MIDI Synchronization. If you need to send MIDI Time Code
(MTC), SONAR will send this data regardless of the clock setting.
To Use the Internal Clock Source
1. Click on the Sync toolbar.
OR
1. Choose Options-Project, and click the Clock tab.
2. Check the Internal box.
3. Click OK.