Feature request: Audible Validation

Would like to see Appian add a feature where we could setup an audible validation.  For example, we have a data collection application where the user uses a handheld scanner to scan a part number, which returns the item description and unit of measure then they can scan a qty for inventory.  It would be great if you could set it up to play a tone if the part number was not found.  I have it set up to display a message, but if the user is not looking at the screen after each scan then they won't see the message.

I am looking into the scanner hardware to see if there is a function I can use, but doubtful.