What words do police cars, fire engines and ambulances use to describe their voices?
The ambulance is a second tone, flat sound one second, interval of one second, cycle repeated. Ma old man described it: "Alas ~ ~ yo ~ ~!"
Fire alarm is slow: low - - high - low - - high - lowPolice car Warning Center: low - high - low - high - lowThe ambulance fluctuated: high - low - high - low - high - low - high - low as the Ma Sanli crosstalk, siren interesting fire truck is three seconds long, a second interval, the cycle repeated. Like Mr. Ma said: fire fire ~ ~ ~ ~ ~ ~ ~ ~
The siren of the police car was very short and there was no interval. Mr. Ma described it as a word: "it's over and done."
