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The camera can play an audio out via its 3.5mm audio socket, each time a number plate is recognised.

 

If a number plate is still in view this will cause the action to trigger again after a cool down period of 10 seconds.

 

This means any message uploaded to the the RoboPlate camera will play again after 10 seconds of initially being triggered.

 

If the message is required to not play again even if the number plate is still in the region of interest, then extend the actual audio file to a required period of time.

 

This can be edited and exported via an audio sound editing software, for example - Audacity®. Then make a custom file with blank audio after it to simulate a cool down period after the audio message. (If other actions are set, for example; an alarm output, this will still trigger again after 10 seconds if the number plate is still in the region of interest).

 

 

Note - The audio file format required is PCM 8Kbps MONO.