Chiltern Railways appear to have installed a new automated announcement system at Beaconsfield.
"I am sorry to announce that the 18:41 train to London Marylebone is running approximately one minute late. I am sorry for the delay to your journey. Please listen for further announcements."
This was about 90 seconds before the train appeared.
A similar announcement then came on the opposite platform for a different train, with the delay being three minutes, rapidly increased to four minutes then reduced to one minute.
It might be a new toy, but passengers will rapidly get frustrated by announcements that are too frequent. Chiltern usually operate like clockwork, but are they being a bit OTT?