Here is how I configured a flameout alarm for us turbine jockies.
This alarm will only be active after the turbine has started (or fails to start.) I didn't want it announcing a flameout right after turning the jet on or after shutting the turbine down.
It uses the throttle cut switch, two telemetry controls, a logical switch, a sequencer and, of course, a sound on event.
It also requires telemetry from your ECU back to the TX, in particular the pump voltage.
I use the throttle cut switch instead of trim buttons to handle the ECU trim function to start and stop the turbine.
Here's the logic:
When the throttle cut switch is moved to the turbine run position, it activates the "pump on" telemetry control. This control waits for the pump voltage to increase past 0.2 volts. When it does, it activates the sequencer which waits for three seconds then activates the "pump off" telemetry control. This control then waits for the pump voltage to drop below 0.2 volts. If it does, and the throttle cut switch is still in the turbine run position, the we've had a flameout: Play the alarm. If the throttle cut switch is in the turbine off position, then a shut down has been commanded: No need to play the alarm.
The screenshots below should be self explanitory.
And here's a link to my custom flameout alarm sound file. Yes, I did make it loud.
https://1drv.ms/u/s!Askmi-GpbnHliLEQq506s2hMJMSjqg
Have fun!
...jim