Preferences and Presets 97
m Real-time Audio Mixing: Enter a number in this box to specify the number of audio
tracks that are mixed in real time. The maximum is 8 tracks. The maximum number of
tracks you will be able to mix depends on multiple factors. Your processor’s speed,
number and types of filters used, data transfer rate of your hard disk, and available
memory are all factors which determine the maximum number of tracks that can be
mixed in real time.
m Render Ahead: Check this box to enter the number of seconds to render ahead in a
sequence in the box. This will pre-render any effects ahead of the current play position
when you click the Play button.
m Still Image Duration: Enter a value in this field to determine the duration between In
and Out points for imported images. Still images are, by default, imported with 10
seconds of frames between In and Out points.
m Preview Pre-roll and Preview Post-roll: Enter durations into these fields to specify the
amount of a clip played when the Play Around Current control is used. This is used for all
clips that are files on disk.
m AutoSyncCompensator for movies: Hardware variations occasionally lead to
synchronization problems between audio and video. Check this box if you experience A/V
sync drifts on long clips. The AutoSyncCompensator analyzes clips and compensates for
any audio drift by adjusting the sampling rate of audio to match the duration of video in a
clip. This adjustment is only applied to the timing of clips in the Browser or Timeline and
does not affect the media on disk. Enter a value in the minutes field to specify a minimum
duration limit to trigger the AutoSyncCompensator. The AutoSyncCompensator will only
analyze clips longer than this duration. The default duration of 5 minutes is suitable for
most circumstances.
m View External Video Using: Choose a setting from this pop-up menu to specify how you
will view external video.
Depending on your hardware configuration, you may need to decompress frames when
viewing video on an external monitor. To do this, click the Options button and check the
box labeled “Also Decompress.”
m Mirror on desktop during Playback: Check this box to mirror video on the desktop
when playing back video. Turn off this option if you notice dropped frames in your output
during video playback.
m Mirror on desktop during Print to Video: Check this box to mirror video on the desktop
when using the Print to Video function. Turn off this option if you notice dropped frames
in your output during Print to Video or Edit to Tape.
Note: Displaying video on the computer monitor while printing to video or editing to
tape taxes the computer’s processing power and can cause performance problems. If you
notice dropped frames in your output when performing these operations, try reducing
your monitors bit depth from millions to 16-bit (thousands of colors) or turn “Mirror on
desktop” off.
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