Traditional Culture Encyclopedia - Weather forecast - How many decibels does the alarm clock ring? What is the sound below 25 decibels?
How many decibels does the alarm clock ring? What is the sound below 25 decibels?
According to the hearing of ordinary people
0-20 decibels is very quiet and almost imperceptible;
20-40 decibels is quiet, just like whispering;
40-60 decibels is average. Ordinary indoor conversation;
60-70 decibels are noisy and harmful to nerves;
Noise of 70-90 decibels is loud, and nerve cells are destroyed.
90- 100 decibel noise increases and hearing decreases;
100- 120 decibels is unbearable, and you will be temporarily deaf after staying for one minute.
/kloc-above 0/20 db: extremely deaf or completely deaf.
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