还记得你在浴室里一边洗澡一边哼歌
Remember when you had that impromptu jam session in the shower,
大声唱着Like a Prayer的时候吗？
belting out the lyrics to Like a Prayer?
就感觉自己6爆了
You know you nailed it.
但在漫漫公路旅行中你也会在朋友面前唱
But then when you try to recreate the moment with your friends during that long road trip,
却不像麦当娜，反倒像……一只湿答答的猫
you were less Madonna and more… wet cat. you were less Madonna and more… wet cat.
所以在充满水蒸气的小房间里你的歌声似乎更悦耳
So as if it seems like some kind of magic happens to your voice when you step into a steamy stall.
那是因为浴室通常具有非常赞的声学特征
That’s beacuse bathrooms usually do have some pretty wonderful acoustic properties.
因此在浴室唱歌时听起来更好
So you really do sound better to yourself when you sing in them.
有些浴室墙面光滑坚硬如瓷砖
Shower stalls tend to be made of smooth, hard surfaces like tile.
当声波撞击瓷砖时它们没被吸收或分散而是反射回来
When sound waves hit them, they reflect it back at you rather than absorb or disperse.
这种反射增强了你的声音
The reflected sound amplifies your voice.
最主要的是提高声量
Basically, cranking up the volume.
但你的声音并没有变大
But your voice isn’t just louder.
因为浴室不同的墙面离嘴距离不一
Because the various walls of your shower are different distances from your mouth,
其中一些声波慢慢变弱变远
some of the sound waves from your singing travel slightly farther,
它们花了更长的时间入耳
so they take a fraction of a second longer to get back to your ears.
加上墙面光滑而坚硬
And, because the walls are made of smooth, hard surfaces,
声波不断在墙与墙间反射
the waves continue to bounce around from wall to wall,
于是你会听到微弱持久的回响
so you continue to hear quieter reflections of the sound
比原声更长
for longer than you would in, say, in your living room.
这种效果叫做混响
There’s a fact called reverberation
造成歌声比原声更悠久的错觉
gives you the impression that the note you sang lasted a little longer than you actually held it.
混响也会模糊抚平音准之间的差别
Reverberation can also smooth the transition between notes
最后入耳的是反射重叠的声波
as the reflecting waves overlap when they reach your ear,
所以不易发觉自己的走调
so it’s not as noticeable when you’re off-key.
许多卡拉ok的麦克风利用混响的优点
A lot of karaoke microphones are actually designed to take advantage of this
设计添加混响电子音效
by adding reverberation electronically.
它们是不是非常好让你不会在舞台上丢人
Isn’t that so nice of them to make sure you don’t completely embarrass yourself on stage?
而且 你的浴室表演听起来比在卡拉ok里还好
Still, your shower performance sounds even better than your karaoke rendition,
原因是浴室还有一个声学特征
thanks to another acoustic property of bathrooms,
就是共鸣
resonance,
声波通过正确的排列方式来放大声音
where sound waves line up in just the right way to amplify the sound.
淋浴时 当音符的波长与房间大小相匹配时
In the shower, that happens when the wavelength of a note matches up with the size of the room
就会发生共鸣 使得反射波的波峰对齐
in a way that makes the peaks of the reflected waves line up.
很多不同的音符会在此产生共鸣 但它们也会和其它反射声波
Lots of different notes will resonate in there, but they’ll also combine with other reflected sound waves
相结合从而抵消了其它的一些声音
in a way that cancels out some of the sound.
这种效果遇到更低的低音时尤为明显
This effect is much more noticeable with the deeper bass tones
因为它们的波长更长 波峰间距更大
because they have longer wavelengths with more distance between the peaks.
所以不是说在整个房间里散布了放大的和柔和的声音
So instead of the amplified and muted sounds being distributed all over the room,
而是在一些点上你的低音听起来不是有点柔和就是完全很棒
it’s more like there are a few spots where your bass notes sound either a little muted or totally awesome.
淋浴的声学效果好到
The acoustics in the shower are so good
有时候录音艺人都会用
that recording artists sometimes use them too.
艾尔·扬科维奇的第一支大热单曲“我的博洛尼亚”就是在浴室里录的
Weird AL’ s first hit single “My Bologna” was recorded in a bathroom.
还有Pixies会拉着他们的设备进到浴室录音棚
And the Pixies drag their equipment into the studio bathroom to get the perfect sound
就为了给“ Where Is My Mind ”和“Gigantic”录完美的音效
for “Where Is My Mind?” and “Gigantic” .
当然了 所有这一切都意味着除非你把你的工作人员拖到你的隔间里
Of course all of this means that unless you drag your crew into the stall with you
不然他们可能永远听不到你“祈祷”的美妙声音
they’re probably never gonna hear just how beautiful your rendition of “Like A Prayer” can be.
感谢提问 感谢各位观众姥爷
Thanks for asking and thanks always to our patrons on Patreon.
如果想
You want to help us decide what questions to answer
或者了解你在其它地方了解不到的很酷的东西的话
or get access to a lot of cool stuff you can’t get anywhere else.
就去patreon.com/scishow吧
Head over to patreon.com/scishow.