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Io HD Installation and Operation Manual — Using The AJA Control Panel
Audio Delay
—Audio can be offset or delayed for certain capture or monitoring
situations where this would be desirable. Audio Delay sliders controlling input
and output values are provided.
Audio Delay Input:
Some devices have analog audio and digital video that may
be used as sources, but may not necessarily be in sync. The original Canon XL-H1
is an example of such a device. The HD-SDI output on this particular camcorder
does not include embedded audio. The camcorder does provide analog audio
outputs. These analog audio outputs, however, are not necessarily in sync with
the picture from the HD-SDI video output since they take different circuitry
paths through the camera. In a case like this, the Audio Delay Input feature may
be useful for offsetting the audio to match the video coming from the device.
Note:
The Canon XL-H1s, a newer version of this HD camcorder, includes
embedded audio in the HD-SDI output and analog audio and digital video need not
be used.
Audio Delay Output:
In some cases, monitors such as consumer LCD units, may
have video delay inherent in their circuitry. For these monitors, the Audio Delay
Output feature may be useful for offsetting the audio to match the video on the
monitor. This audio delay feature can also be useful when performing video
conversions where video processing can take a frame to occur.
Summary of Contents for io hd
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