Digital Alert Systems DASDEC-II MANUAL - Manual (Page 45)

Digital Alert Systems: DASDEC User Manual
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The Setup Audio pages provide a variety of easy-to-use controls and status displays to facilitate these tasks.
Due to the need for immediate feedback when tuning audio, the Setup Audio pages do NOT have an Accept Changes
button. Changes to check boxes, selection boxes, and clicking buttons on these pages are immediate.
There are four tabbed sub-pages on the Setup Audio page: Decoder Audio, Encoder Audio, Audio Output Levels/Tests,
and Radio Tuners. Start with Audio Output Levels/Tests.
4.6.1 Audio Output Levels/Tests: Direct Audio Output Levels and Tests
The audio output levels for the DASDEC audio output device ports are configured from this page. In addition, the
output sample rate and the audio preview devices group are configured here. Each audio output device results in
an audio configuration interface on this page. Finally, audio WAV and MP3 files can be uploaded into the
DASDEC from this page.
All standard DASDEC(s) from the factory have a Front Panel speaker, a Main audio output device, and one
auxiliary audio output device. A labeled configuration table is provided for each one of these output devices. The
configuration table provides controls for setting output levels from 0 to 100% and for running audio tests. The
table also displays if alert origination and forwarding will use the specific audio output. For the main audio output,
a toggle control is provided for enabling or disabling the analog audio pass-through option.
One other audio output option available that affects the page display. A second analog PCI soundcard can be
added in the factory to provide two extra decoders (for a total of six). This will result in a second auxiliary audio
device configuration table labeled Aux 2 Audio.
Audio tones can be played through each available audio output to test audio connections and calibrate levels
using audio test equipment. Configure the levels by entering numbers from 0 to 100 for any specific port. Output
level values near 70 are a good starting point for the DASDEC. Each audio device displays the same style of
table for the control interface. The table allows audio output level control, audio tests, and audio enable/disable
for alert forwarding and origination audio.
NOTE: Setup Audio web interface pages for Decoder and Encoder Audio display and
reference audio output levels for certain features. These references always provide an
active hyperlink into this page to allow for changes to audio output levels.
NOTE: Some browsers will not accept the text edit change to an audio level until the
mouse is clicked outside of the field entry box. Other browsers simply will accept the
change when the Enter key is touched. You may wish to review Chapter 3.3.4.2 How to
Make Changes and Update.