推荐理由:《Age Test》是一款适用于苹果系统的健康类软件APP。Age Test is a fun gadget to find if you can hear different frequency of sounds. This sound is so called Mosquito Sound, which gives off high-frequency noise. Test it with your friends and family!《Age Test》大小3.3MB,在本站深受8159位玩家喜爱和下载。要找等,赶紧下载到手机吧。
From wikipedia
Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the maximum range of audible frequencies normally lies between ①⑥ Hz and ①⑥,③⑧④ Hz (①⑥.③⑧④ kHz); not to be confused with the common sound system speaker range of ②⓪ Hz to ②⓪ kHz (Hz is the standardised term for cycles per second), although there is considerable variation between individuals, especially at the high frequency end, where a gradual decline with age is considered normal.