gênêrateur de signal d`appel en morse

Everyone must at some time have had the maddening experience of standing on a railway platform and straining anxiously to make out what the station announcer has just said - a situation which provides a good example of the problems facing P.A. systems used in environments with high levels of background noise. One solution is to employ a dynamic range compressor to boost the amplitude of the softer portions of speech above the threshold level of the background noise, without altering the level of the louder speech passages. When used in conjunction with the `Stentor` power amplifier the result should be a P.A. system which will make itself heard in even the noisiest of crowds.