Q sound level drop when coasting

  Рет қаралды 2,225

Henry455

Henry455

Күн бұрын

Using an inexpensive db meter to demostrate how quickly the sound level of a mechanical siren drops with power removed. In 6 seconds the sound level drops approx. 10 dba which most people percieve as 1/2 the loudness.

Пікірлер: 5
@murathanaytemur
@murathanaytemur 3 жыл бұрын
Test federal q2 siren?
@Henry455
@Henry455 3 жыл бұрын
Yes
@murathanaytemur
@murathanaytemur 3 жыл бұрын
@@Henry455 kzbin.info/www/bejne/qp3dmqCuhJiMea8 federal siren test.
@murathanaytemur
@murathanaytemur 3 жыл бұрын
@@Henry455 kzbin.info/www/bejne/aIOWm5aug8xjmsk federal q siren repair. Test.
@911caddy
@911caddy 15 жыл бұрын
Ouch!!
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