Their distinctive cackling tone is well developed.

它们能发出独特的咯咯声的声进化的很好。

" I just said that, " Alleyway Peter said softly.

“我刚说过。”小巷彼得轻声。

" So long, kid, " the sorcerer said softly.

“再见，孩子。”法师柔声。

If you hear something that's much more monophthongal — aye, something like this.

果你听到一些更单声的声音，比这样。

Professional singers train to lengthen their vocal tract to create richer, deeper sounds.

专业歌手通过训练延长他们的声，以创造更丰富、更深的声音。

That's a bob-white, whispered Ben. Now keep perfectly still and you will hear something worth while.

本轻声这是鹑，保持别动，你一定有所收获。

This makes the vocal tract longer and gives us the physical ability to produce a wide variety of sounds.

这使得我们拥有更长的声从而赋予我们发出更多不同声音的能力。

Okay, so this is your vocal tract.

好的，这是你的声。

That is Dolby Atmos… which has true 3D sound up to 128 channels.

这就是杜比全景声… … 它拥有 128 个声的真正 3D 声音。

Do You want To Know A Secret? Track two, take eight.

《Do You want To Know A Secret》 2声 第8次。

This seems a little surprising, because consonants and vowels use the same areas of your vocal tract.

这似乎有点令人惊讶，因为辅音和元音使用的是你声的相同区域。

It was already very clear that Chimpanzees don't have the kind of control over their vocal tract that we do.

很显然黑猩猩们无法像我们一样控制声。

" That I am off into Hogsmeade for a drink, " said Dumbledore lightly.

“他们会认为我是去霍格莫德喝点酒，”邓布利多轻声。

" He must have sent them, " said Harry quietly, more to himself than to Uncle Vernon.

“一定是他派它们来的。”哈利轻声，与其说他在对弗农姨父说话，还不说是他在自言自语。

" I'm sorry, " MJ said tenderly. Then she pulled back slightly. " Peter, there's ...there's some people here."

“我很遗憾。”MJ柔声，她的身体微微后倾，“彼得，还有… … 还有几个人来了。”

These roughly match how closed and open different parts of your vocal tract are when you make these sounds.

当你发出这些声音时，这些大致匹配你声不同部分的闭合和开放程度。

Articulate speech depends on a vocal tract of a particular shape.

清晰的语音取决于特定形状的声。

If you had to compare your vocal track to an instrument you might pick a trombone.

果你得将你的声比作某个乐器，你可能会选择长号。

(SINGSONG VOICE) I'm Telly the all time teller.

（单声）我是全时出纳员 Telly。

Only in humans is the vocal tract optimal.

只有人类的声才是最佳的。