Reference Guide

1256
Dialog Reference
Audio Options dialog—Drivers
Synchronization
SONAR gives you two choices for synchronizing your audio tracks to SMPTE or MIDI Time Code:
• Trigger and Freewheel. With this option audio playback starts (or triggers) at the exact
timecode, but then the audio plays at its own internal rate. The audio can gradually drift away from
SMPTE time due to variations in the timecode signal.
• Full Chase Lock. With this option the speed of audio playback is continuously adjusted to stay
with the timecode.
• Timing Offset (msec). With this option, used for making very fine adjustments to the audio/
MIDI synchronization of your project, you can offset the audio in your project by a number of
milliseconds. A positive value delays audio by that amount. A negative value delays MIDI by that
amount.
Record Latency Adjustment (samples)
If you loop an audio output back into an audio input, and re-record a track this way, the audio doesn’t
line up. For some sound cards, it is off quite significantly. This record latency adjustment is a
compensation for that delay.
You can do an approximate measurement of the delay by turning on samples as the resolution unit
in the Time Ruler, and comparing the original track with the re-recorded track. Then you can enter a
value in the Manual Offset field to compensate.
If you use ASIO mode, enter 0 in the Manual Offset field and leave the Reported Input Latency
check box checked (this check box only appears in ASIO mode). This will line up audio in most
cases. If you think you can tweak it closer, use the Manual Offset field.
In ASIO mode, the current active ASIO device (remember ASIO can only have one active at a time)
reports its "Input Latency." You can't edit this value. This supposedly accounts for buffer size, A/D
Conversion latency, etc. The check box allows you to use this reported value. It is checked by
default. In any case, the amount entered into the Manual Offset field will be combined (added to)
the reported value if you have it checked.
Audio Options dialog—Drivers
The Options > Audio command opens the Audio Options dialog box. Choose the Drivers tab to
display a two-column list of available drivers, and selectively enable them by clicking the
corresponding check box. You can change the driver name by clicking the name in the first column
and typing in your preferred name, or friendly name, for the driver.
Input Drivers
These control recording.
Output Drivers
These control playback.