hi
" tboulanger@voila.fr schrieb:
Hi list !
It seems for many people that the alarm level is not enough strong, even at full blast so here's my question : do you know if there are some rules that make a sound appear more strong than another at an identic level ?
the crest-factor decribes the energy of the sound in relation to its amplitude. the waveform with the highest crest-factor is a squarewave (imagine: the positon of the membrane of the loudspeaker is always at maximum position). using a square should result in the maximum loudness at a specific amplitude. our is ear is the most sensitive in the area between 1 to 4kHz (as chris and derek already mentioned).
another approach: what about making the beep-sound of your buzzer pulse? noises without constant amplitudes seem to get more attention.
roman