For sake of simplicity, let us consider the level of these barely audible signals are at 85 dB, the suggested volume levels at which a normal human can safely listen to sound waves [20Hz-20KHz] for about 8hrs.
But if the sound has only frequency contents between 15K to 20K, will this have any different effects ? it very harmful ? gravely dangerous ? or it is much better than listening to a sound containing all frequencies from 20Hz to 20Khz ?
2007-02-15 05:49:07 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Medicine
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noise
2007-02-15 05:52:06 · answer #1 · answered by god knows and sees else Yahoo 6 · 0⤊ 0⤋
Listening to 85dB of 15-20KHz for an extended time would have to be a form of torture...The upper theshold of human hearing is gotta be like insect territory or something cause theres nothing pleasent about it.
2007-02-15 13:57:08 · answer #2 · answered by Anonymous · 0⤊ 0⤋