Ensemble Designs Avenue 5230, Руководство пользователя

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6230 Audio Processor Configuration
The 6230 Audio Processor will accept audio from the AES input connectors and can
disembed audio from the incoming SDI video stream. Between the input and output is a
4x4 audio mixer with tracking audio delay. Any incoming audio can be mixed, level con-
trolled and/or shuffled to another output channel by means of the integrated audio router.
The tracking audio delay allows synchronization and timing to be maintained with time
base corrected video passing through the video frame synchronizer of the 5230.
A built in sample rate converter allows use of asynchronous AES input signals. The 6230
also supports encoded audio formats such as AC-3 and Dolby-E. All audio processing is
performed at the full 24 bit resolution of the system. At the output side of the 6230
submodule the four audio channels are routed to analog output connectors. An adapter is
also available to allow the AES I/O to be converted from BNC to 110 ohm balanced.
The available audio processing remote control menus are summarized below:
• Audio In : Status indicators show presence of AES and embedded (SDI) audio
inputs. The In 1/2 Sel and In 3/4 Sel controls provide for selection of inputs to the
4x4 audio mixer. The choices for each are AES 1/2, SDI 1/2, AES 3/4, and SDI 3/4.
Thus any pair of input audio signals can be routed to either pair of input buses of
the 4 input 4 output audio mixer. This allows full flexibility of audio routing.
• Audio Mix : This menu gives full access to the 4x4 audio mixer controls. Any input
channel can be routed to any or all output busses. Sliders or Touch Screen rotary
knobs permit levels to be adjusted from -70dB to +12dB. Alternatively a value can
be put in the numeric window, followed by the
Enter key, and this will become the
new gain setting. Default buttons are provided for return to zero level.
The Tie function is used for stereo operation where gain of a pair of channels is
usually desired to be the same. An invert selection allows inversion of a channel to
permit phase correction.
• Audio Delay : With the Auto Track switched On , audio will be delayed the same
amount as the video passing through the 5230 frame synchronizer thus preserving
lip sync. If incoming audio is early due to signals passing through an upstream
frame sync without a compensating audio delay, Bulk Delay can be used to correct
the problem. Up to 1000 mS of fixed delay can be added to compensate for
upstream timing errors.
5230/6230-10
Model 5230/6230 Video Audio DAC