Their distinctive cackling tone is well developed.

它们能发出独特的咯咯声的声道进化的很好。

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 个声道的真正 3D 声音。

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

如果你听到一些更单声道的声音，比如这样。

Okay, so this is your vocal tract.

好的，这是你的声道。

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道，以创造更丰富、更深的声音。

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

“再见，孩子。”法师柔声道。

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

“我刚说过。”小巷彼得轻声道。

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

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

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

本轻声道这是鹑，保持别动，你一定有所收获。

But in between, it passes through two important regions, the vocal cords and the vocal tract.

但在这中间 它经过两个重要的区域 声带和声道。

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道从而赋予我们发出更多不同声音的能力。

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

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

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道的相同区域。

" 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，”邓布利多轻声道。

Now for singers, changing the shape of the vocal tract also allows for greater volume of sound.

对于歌手来说 改变声道的形状也可以提高音量。

So say Atmos down to 7.1 or 7.1 down to 5.1 or 5.1 down to stereo, stereo down to mono.

所以说 Atmos 降至 7.1 或 7.1 降至 5.1 或 5.1 降至立体声，立体声降至单声道。

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

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

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

很显然黑猩猩们法像我们一样控制声道。

Your vocal tract is a very special kind of sound filter and the reason for that is thanks to resonance.

你的声道是一种非常特殊的声音过滤器，这要功于共鸣。

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，这些大致匹配你声道不同部分的闭合和开放程度。