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Историческую версию High Frequency Sounds можно получить на Android
Используйте эти высокочастотные звуки в качестве рингтонов, которые могут слышать только молодые люди.
Listen to various high frequency sounds, which can even be used as ringtones!
The pitch of a sound is determined by the soundwave frequency. These high frequency sounds are made by fast sound wave vibrations, while slow vibrations create low pitched sounds.
As you age, your hearing abilities decline so that you are less able to hear high pitched sounds. This means that these high pitched sounds are effortlessly heard by young people, but not so easily detected by older generations. Test your hearing (or your parents’ hearing!) with these high frequency noises! You can even use these sounds as ringtones. Just think, if your parents can’t easily detect sounds at this pitch, you could set a stealthy ringtone that they won’t hear, even if you’re in the same room!
Use these high frequency sounds as ringtones only young people can hear!