Avid Technology Avid Adrenaline, Руководство пользователя

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Using the Avid Adrenaline
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Do not connect a tri-level sync to the Ref connector on the SD Video I/O board
or connect the reference sync to the tri-level sync connector on the
Avid DNxcel board. The proper sync signal must be connected to the correct
connector for the sync to work.
•
Video Reference IN (REF)
— Sync signals are generated from the
incoming black burst generator (BBGen) or from a house sync. If there is
no sync connected to REF, an internal sync is used.
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By default, the sync signal is generated from incoming video whenever you
capture analog video. Depending on the configuration of the audio and video
equipment attached to the Avid Adrenaline, you might need to use a BBGen or
house sync; for example, when you perform an Insert Edit.
• Incoming video signal — When you capture video, a sync signal is
generated by the Avid Adrenaline from the incoming video: component,
composite, SDI, S-Video, or DV.
When you capture analog video and audio, the Avid Adrenaline generates
a sync signal from the incoming video, but it does not sync your video to
your audio. You must sync these externally to the Avid Adrenaline.
• Word Clock Out signal — The Word Clock Out signal is primarily used
to sync an audio device with the Avid Adrenaline’s internal sync. When
the Avid Adrenaline generates a sync signal from a video input, an audio
device can use the Word Clock Out to sync to the Avid Adrenaline.
•
Incoming analog audio
— When you capture audio only, the Avid
Adrenaline does not sync to the incoming audio. An external sync should
be used in this case.
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When you capture audio using the AES/EBU inputs on the Avid
Adrenaline, always use AES/EBU channels 1 and 2 first. The AES/EBU
1/2 connector syncs to the incoming digital signal. If you connect to the
AES/EBU 3/4 connector only, the internal sync on the Avid Adrenaline
does not sync with the incoming digital audio signal and the audio data
will be corrupted. Use the AES/EBU 3/4 connector only if you need
4 channels of AES/EBU audio.