Ensemble Designs 7160 Serial Digital Protection DA - Manual (Page 33)

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Model 7160 HD/SD/ASI/310 Protection DA
Audio Detect Menu
The Aud Detect menu shown below allows you to configure the following audio parameters:
Audio Group • – select which embedded audio group (Group 1 – 4) to detect.
Aud Thrsh • – select the silence detection level from 0 VU to –40 VU.
Note: An audio signal level of 0 VU corresponds to -20dBFs and is the generally accepted
digital reference level for AES audio. The 7160 uses the standard weighting and ballistics of VU
(Volume Unit) measurement rather than decibel-based measurement in order to more closely
represent audio levels as perceived by the listener.
Audio Time • – set the time that the channels must be continuously silent before an alarm is
trigged (0 – 20 seconds). Note that a loss of embedded audio will cause an immediate switch,
regardless of this setting.
Ch1, Ch2, Ch3, Ch4 • – enable or disable Channels 1 – 4. Each embedded group contains four
audio channels. Sensing for each channel can be enabled separately.
The following status display is also provided:
Pri Status • – shows the status of the four audio channels embedded in the Primary signal.
Green indicates Channel OK, red indicates silence, and gray indicates channel not enabled. An
OK indicator shows the overall result of the test for all the channels enabled.