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我左右耳都能听到21.1kHz,还行啊,有些超过14就不行了!
Find out just how far your ears can hear into the range of ultrasonic ringtones. Pretty much everyone should be able to hear the lowest tone (8kHz). Many people should be able to hear up to around 14.1kHz, from around 17kHz upwards we get into the range that only the under 20's can hear!
829  1  1  0     匿名用户 • 34月前
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