Encoder Audio - Digital Alert Systems DASDEC II User Manual

4.6.3 Encoder Audio

There are two main configuration options for encoder audio: Alert Encoding Audio Configuration and Alert Audio
File Recording.
1. Alert Encoding Audio Configuration
When the DASDEC encoder is used to originate an EAS alert, the audio associated with the alert must be
played out of an output port in order for the alert to be transmitted or decoded by another decoder. The
audio for the alert must be configured to play over a selected audio output. This interface allows for setting
audio sample rate, enabling/disabling Originating audio on each of the audio output devices, and for setting
a play-out delay time.
Audio Output Sample Rate
This selector controls the sample rate of audio played from the DASDEC.
NOTE: This same control is presented under Setup > Decoder Audio > Alert Forwarding
Audio Configuration and under Setup > Audio Output Levels/Tests. The sample rate
applies to audio for both alert Forwarding and Origination.
NOTE 2: AES Audio output requires 32000 or more samples per second.
Main Audio and Auxiliary Audio Tables
These tables allow for examining audio output status and enabling/disabling playing base station Originated
alert audio on the individual audio output devices. 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. The table has two columns: Audio Output Level and Encoder Output
Enable.
NOTE: Encoder Origination and Decoder Forwarding share the same physical
audio output ports; level changes for one applies to the other.
Audio Output Level - The audio output levels are displayed and provide an active shortcut link to the
Audio Output Levels/Tests page to change the output levels.
Encoder Output Enable - Each table provides a checkbox for controlling if base station originated
alert audio is played using the output. Typically, these should all be enabled.
Multistation mode note: When DASDEC Multistation mode is enabled, the alert origination audio
configuration for each station overrides the base station settings on these tables! Configure station
alert audio origination on the proper station interface configuration page under Setup > Encoder >
General.
Alert Audio Delay
This toggle below the tables allows for delaying the play-out of alert audio for a user specified number of
seconds after the EAS Audio play-out relay is closed.
NOTE: This same control is presented under Setup > Encoder Audio > Alert
Encoder Audio Configuration. The delay time applies to both alert Forwarding and
Origination.
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Digital Alert Systems: DASDEC User Manual