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SOS Overlay Options

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This is an option in the Configure Window in SOS.

Overlay Options

Overlay mode – Specifies how the start and end of content is triggered.

  • Timed – Ends after a fixed time. In this mode the reported duration of the content is trusted and the overlay will end after the exact reported duration of the content has been covered. In our experience content is rarely the exact reported length, so this method is usually only used for radio stations with a fixed clockwheel or tone generated events.
  • Event – Ends on next event. This is the recommend mode since the end of the current content is triggered as soon as the next content event is fired. This usually results in the most accurate and clean overlay.
  • Event/Timed – Ends on both. In this mode the end of the overlay is triggered as soon as the next content event is trigged, or when the reported content time runs out.
    Note: This works great with talk stations where the music or advertising content might we followed by a live DJ, which means no event is ever triggered to signal the end of the content. In this case the overlay still ends after the reported duration of the content has passed.

Event lag time – When the automation system sends an event to SOS notifying it about the current content playing, this event might take some time to actually reach SOS. In rare cases some automation systems might even send the event a few moments BEFORE the actual event happens! By adjusting the Event lag time you can make the overlays sound a lot cleaner by estimating the lag you expect. The default setting of 200ms is usually good in most situations. This means the event can be as much as 200ms late, and the listeners will still not hear and audio of the covered advertisement.

  • Note: A negative number for this field indicates that we expect the event to fire BEFORE it actually happens. Although rare, some automation systems do send events ahead of time.

Pad end time – As rule of thumb this should be twice the Event lag time, or at least equal to the Event lag time. This will cause the overlay time to be extended by the specified padding time. In essence it means this might cut of the first few milliseconds of the next content (but only if the content is not another overlay). This sounds a lot better than having the last few milliseconds of the content that was supposed to be covered being heard by the listeners.

Disable overlays – When checked, no overlays will be triggered for content. Mostly used only by stations which use SOS as their internet encoder and does not do any online advertising.

Stream overlay captions – When checked, the title information of the overlay will be sent to the player for display. Rarely used.

Post overlay information to AudioRealm – If the station lists on AudioRealm, the currently playing track information is sent to AudioRealm for display by default. If this option is checked, then the information for the overlays will also be displayed on AudioRealm.

Maximum overlay event time – Specifies the maximum time an overlay event can be. Any events that needs to be covered, but exceeds this time – will be ignored. Setting this value to zero (0) will specify an unlimited maximum event time.

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