Vorsis AirAura, Руководство пользователя

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INPUT MENU
This is the first tab on the top far left of the GUI. (Note: the screen that is
currently being displayed is indicated by a red background on the selection tab).
The Input screen contains controls for the Input Audio Source, Automatic
Failover Enable, Analog and AES/EBU input gain controls, input L/R gain
balance, Phase Rotator In/Out, and Pre-Emphasis selections.
All controls can be adjusted with the AirAura front panel track pad.
Input Source
The Input Source can be selected as either Analog, which is the analog
Left/Right input, or AES, which is the AES3 digital audio input. The currently
selected input is shown by a red checkmark.
Audio Input Signal Presence Indicators
Below the source selection checkboxes are a pair of signal presence indicators
for each input. The Analog indicator lights if there is a signal present at the
analog input that exceeds -48dBFS. The AES indicator lights if there is a valid
AES signal present at the digital input above -48dBFS.
Automatic Input Failover
In the event the currently selected input source fails and the “Input Failsafe”
check box is checked, an alternate source of audio connected to the other input
can automatically be put on the air.
If the primary source was AES/EBU (digital), the analog input will be selected
immediately if the AES3 receiver chip detects invalid bits in the AES data stream
or missing audio data. Also, the analog input will be selected after 30 seconds of
a valid AES data stream having a signal level below -48dBFS.
If the primary source was analog, then a timeout of 30 seconds must elapse
before the unit switches to the AES/EBU input in an attempt to restore audio. The
audio failure sense threshold is fixed at -48dBFS, and this combination with the
30 seconds timeout, is suitable for virtually all program types.
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