It is true that those who heard the V1 never forgot the sound any more than they did the Air Raid Warning siren. My mother spoke about this till her last year (aged 90) I knew that if I had played a recording of such she would be very unhappy.
I recall a woman telling me, "We were catching a bus in North London and, as we approached The Dominion and got off, we heard a V1. So we ran across the road and jumped on another bus going the other way!"
My paternal grandparents were killed by a V2 that landed in the back garden of their house 2nd November 1944. They were in Ashford (Middx) if you go due North from their house, you reach EGLL Cargo centre in 1.8 miles. So the rocket had completely crossed London and was far out the other side. My father, then in 141 Sq on Night Fighters attacked Peenemünde a couple of times.