Digital Alert Systems DASDEC-II MANUAL - Manual (Page 54)

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Digital Alert Systems: DASDEC User Manual
Audio Forwarding Tables
After the DASDEC decodes an EAS alert, it can be triggered to "Forward" the alert. The audio component of
forwarding is the action of playing the alert audio over selected audio outputs. The Main audio device is
always present on a DASDEC. Auxiliary Audio outputs are present if an appropriate sound card has been
installed. A standard DASDEC always has the Aux 1 sound device. Use the checkbox provided per table
under the column Forwarding Output Enable to set base station audio port forwarding.
Audio Output Level - The Audio Output level is displayed and provides an active shortcut link to the Audio
Output Levels/Tests page to change the output levels.
Forwarding Output Enable - Each audio device is given a tabular interface that allows for
enabling/disabling base station audio forwarding on the device. Each table provides a checkbox for
controlling if base station forwarded audio is played using the output device. Typically, these should all be
enabled.
Multistation mode note: When DASDEC Multistation mode is enabled, the audio forwarding configuration
for each station overrides the settings on these tables! Configure station alert audio forwarding on the
proper station interface configuration page under Setup > Decoder > Forwarding.
[ ] Alert Audio Delay checkbox
The toggle for Alert Audio Play-out Delay is used to control a delay period before the play-out of alert audio
after the EAS Audio play-out relay is closed. When enabled, a numeric text field is provided for entering user
specified number of seconds of delay.
4. Sound System status and configuration - For Admin user only.
Choose to run or restart the ALSA or OSS sound systems using these buttons. The sound system is
configured in the factory and only should be changed under the direction of DAS customer support. In very
rare cases, restarting the sound system can solve unusual audio problems. The AES digital audio option
requires ALSA.
NOTE: This same control is presented under Setup > Encoder Audio > Alert
Encoder Audio Configuration. The delay time applies to both alert Forwarding and
Origination.
NOTE: Forwarding and encoding share the same physical output ports; level
changes for one applies to the other.