" Which brings the sound up more into human hearing range."

“这使声音更接近人类的听觉范围。”

Elephants, for example, talk with each other using infrasound– far below our human hearing range.

大象用远低于人类听觉范围的次声波唠嗑。

That was bat ultrasound, recorded above your hearing range, but slowed down so you could hear.

这是蝙蝠超声波，录制频段高于你的听觉范围，但放慢了，这样你可以听得见。

Hidden sounds, because much acoustic communication in nature occurs in the high ultrasound, above your hearing range, or in the deep infrasound, below your hearing range.

隐秘声音，是因为自然界中很多声音的交流都会在高频超声的频段，超过了你的听觉范围，或是在低频次声的频段，低于你的听觉范围。

Step 3: Promise all within hearing range that you'll have " just one more" .

第 3 步：向听力范围内的所有人保证您将“再多一个” 。

I'm not creating the pitches or rhythms, I'm just bringing them into the human hearing range.

我不是在创造音高或节奏，我只是将它们带入人类的听觉范围。

These sounds operate at the outer edges of your hearing range to make you uncomfortable without you even knowing why.

这些声音在您听觉范围的外缘运行，让您感到不舒服，甚至不知道为什么。