And that's how it actually gets to be so quiet when you have on, supposedly, these quite expensive headphones.

所以你戴上它后会觉得,周围非常安静，可想而知,这种耳机非常贵的。

麻省理工公开课 - 化学原理课程节选

The headphones are amplifying their heartbeat and the slides are moving one after another for a few seconds each slide and they're listening to their heartbeat.

耳机放大他们的心跳,幻灯片一张接一张,每张停留几秒钟,他们听着自己的心跳。

耶鲁公开课 - 心理学导论课程节选

see people with them, and what happens here is it's supposed to be those noise cancellation headphones. All they do is they take in the ambient noise that's around it, and there's actually battery in the headphones, that then produces waves that are going to destructively interfere with that ambient noise.

我从来没有用过这个,但你会看到有人带他们,它们可以作为消噪音耳机,它们所做的就是采入,周围的随机噪声，耳机里面是，有电池的，然后它能产生和,随机噪声相干相消的声波。

麻省理工公开课 - 化学原理课程节选

They have not evolved to tolerate some of the man made sounds that have very unusual and unnatural physical characteristics. These sounds are for example explosives, industrial noise, musical instruments, power tools, and headphones.

还没有进化到能忍受,某些怪异，超出常规的人为声响,如爆炸，工业噪音,乐器，电动工具和耳机等等。

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And they are wearing headphones that amplify their heartbeat and they are asked among other things how attracted are they to the centerfold photograph that they're looking at.

受试者带着耳机,放大心跳声音的耳机,问了他们很多事情，其中包括他们认为,插页中的裸女多有魅力。

耶鲁公开课 - 心理学导论课程节选

They've got the headphones on.

他们都带上耳机。

耶鲁公开课 - 心理学导论课程节选

So, another example of destructive interference is just with the Bose headphones.

另一个相干相消的粒子,就是Bose耳机。

麻省理工公开课 - 化学原理课程节选