What should electric cars sound like? | Renzo Vitale

70,846 views ・ 2019-01-31

TED


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翻译人员: jacks peng 校对人员: Tianji (Homer) Li
00:13
Let's start with silence.
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让我们从安静开始。
00:23
Silence is one of the most precious conditions for humans,
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安静是人类一种最珍贵的环境,
00:27
because it allows us to feel the depth of our presence.
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因为这会让我们感到我们存在的深度。
00:32
This is one of the reasons why the advent of electric cars
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这也是电动车的出现
00:35
has generated lots of enthusiasm among people.
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在人们中间引起极大的 热情的一个原因。
00:38
For the first time, we could associate the concept of cars
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第一次,我们可以 把汽车的概念
00:43
with the experience of silence.
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和安静的体验联系起来。
00:45
Cars can finally be quiet:
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汽车终于可以安静下来了。
00:48
peace in the streets,
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街道的安宁,
00:50
a silent revolution in the cities.
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一场城市的安静革命。
00:56
(Hum)
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(安静的发动机声音)
01:05
But silence can also be a problem.
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但安静也可能成为问题。
01:08
The absence of sound, in fact, when it comes to cars,
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事实上,当汽车没有声音后,
01:12
it can be quite dangerous.
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可能会非常危险。
01:14
Think of blind people,
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想想盲人,
01:16
who can't see a car which is approaching.
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当车开过来时看不见车。
01:20
And now, if it's electric, they can't even hear it.
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现在,如果是电动车, 他们连听都听不到。
01:24
Or think of every one of us as we are walking around the city,
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或者想想我们每一个人, 当我们漫步在城市时,
01:27
we are absorbed in our thoughts, and we detach from the surroundings.
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我们陷入在自己的思绪中, 没有注意到周遭的环境。
01:32
In these situations, sound can become our precious companion.
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在这些场景中,声音可以 成为我们宝贵的伙伴。
01:38
Sound is one of the most wonderful gifts of our universe.
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声音是我们宇宙中一件 最为神奇的礼物。
01:43
Sound is emotion
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声音是情感,
01:45
and sound is sublime,
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声音是绝妙的,
01:48
and when it comes to cars, sound is also information.
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当涉及到车时,声音也是信息。
01:53
In order to protect pedestrians
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为了保护行人
01:55
and to give acoustic feedback to the drivers,
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并给驾驶员提供声音反馈,
01:58
governments around the world have introduced several regulations
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世界各国的政府都 出台了一些规定,
02:02
which prescribe the presence of a sound for electric vehicles.
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规定电动车必须有声音。
02:07
In particular, they require minimum sound levels
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特别是,它们要求在特定频段
02:11
at specific frequency bands
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的最低声级达到
02:13
up to the speed of 30 kilometers per hour.
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汽车30公里时速时的声噪。
02:17
Besides this speed,
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超过这个速度,
02:19
the natural noise of the car is considered as sufficient.
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汽车的自然噪声 被认为是足够的。
02:24
These regulations have generated different reactions
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这些规定引起了城市里
02:28
among those who favor sounds and those who fear the presence
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喜欢声音的人和害怕 有太多噪声的人
02:32
of too much noise in the city.
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的不同反应。
02:35
However, I don't see it as the noise of the car.
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然而,我不认为这是汽车的噪音。
02:41
I rather see it as the voice of the car.
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我更愿意视其为汽车的声音。
02:46
And this is one of my biggest challenges, and privileges, at the same time.
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这是我最大的挑战之一, 同时也是我最大的特权。
02:50
I design the voice of electric cars.
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我设计电动车的声音。
02:55
We all know how a combustion engine sounds like,
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我们都知道内燃机的声音,
02:59
and we do actually also know how an electric engine sounds like.
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我们其实也知道 电动发动机的声音。
03:03
Think of the electric tramway.
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想想电车轨道。
03:05
As soon as it moves,
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它一移动,
03:06
it creates this ascending high-frequency pitch sound,
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它产生这种上升的高频音高,
03:10
which we called "whistling" sound.
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我们称之为“口哨声”。
03:13
However, if we would just amplify this sound,
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然而,如果我们放大这个声音,
03:17
we would still not be able to fulfill the legal requirements.
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我们仍然无法达到法规的要求。
03:21
That's also why we need to compose new sound.
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所以我们需要创作新的声音。
03:25
So how do we go after it?
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那么我们该怎么做?
03:29
In many cities, the traffic is already very chaotic,
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在很多城市,交通 已经足够混乱了,
03:32
and we don't need more chaos.
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我们不需要更多的混乱。
03:35
But the streets of the 21st century are a great case study
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但21世纪的街道是 一个很好的充满了
03:40
teeming with transience, cross purposes and disarray.
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转瞬即逝,交叉目的 和混乱的研究案例。
03:45
And this landscape offers a great opportunity
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并且这个场景提供了很好的机会
03:48
for developing new solutions on how to reduce this chaos.
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去开发新的解决方案 来减少这种混乱。
03:54
I have conceived a new approach that tries to reduce the chaos
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我构思了一个新的方法, 试图通过引入和谐
03:59
by introducing harmony.
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来减少混乱。
04:02
Since many people don't know how an electric car could sound like,
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因为很多人不知道 电动车听起来什么样,
04:07
I have to define, first of all, a new sound world,
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首先,我得去定义 一个新的声音世界,
04:11
something that doesn't belong to our previous experience
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这种不属于我们先前的体验,
04:15
but creates a reference for the future.
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但为未来提供一个参考的东西。
04:19
Together with a small team, we create lots of sonic textures
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通过与一个小团队的合作, 我们创造了许多
04:23
that are able to transmit emotion.
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能够传递情感的声音纹理。
04:28
Just like a painter with colors,
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就像画家的色彩一样,
04:30
we are able to connect feelings and frequencies
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我们能够链接感觉和频率,
04:34
so that whenever one is approaching a car,
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这样当车驶近某个人时,
04:37
we can feel an emotion
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我们可以感到情感,
04:39
which, besides fulfilling the legal requirements,
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这,除了满足法律要求外,
04:43
speaks also about the character and the identity of the car.
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也传达了这辆汽车的 性格和身份。
04:49
I call this paradigm "sound genetics."
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我这个范式称为“声音基因”。
04:54
With sound genetics, I define, first of all, an aesthetic space of sound,
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通过声音基因学,我首先 定义了声音的审美空间,
05:00
and at the same time, I search for new, innovative methods
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同时,我寻找新的,创新的方法
05:04
for generating soundscapes that we don't know,
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来生产我们不知道的声音场景,
05:08
soundscapes that allow us to envision abstract worlds,
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声音场景能让我们 抽象世界的音景,
05:14
to make them tangible and audible.
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让它们摸得着,看得见。
05:18
Sound genetics is based on three steps.
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声音基因基于三个步骤。
05:22
The first one is the definition of a sonic organism,
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第一个是声音有机体的定义,
05:27
the second one is a description of sonic variations,
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第二个是声音变化的描述,
05:31
and the third one is the composition of sound genes.
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第三个是声音基因的组成。
05:38
The description of a sonic organism is based on a cluster of properties
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对声音有机体的描述 是基于我所创作的
05:44
that every sound that I compose should have.
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每一个声音都应该 具有的一组特性。
05:50
[Sound is moving.]
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[移动的声音]
05:52
I transfer to a small sound entity, such as the sound of a car,
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我把声音转换成一个小实体, 比如汽车的声音,
05:58
the power of the motion of music,
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音乐运动的力量,
06:01
so that sound can move so.
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所以声音可以这样移动。
06:04
[Sound is acting.]
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[声音是运动]
06:05
And just like a dancer on a stage,
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跟舞台上的舞者一样,
06:07
sound will project trajectories of sound in the air.
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声音会在空气中 投射出声音的轨迹。
06:14
[Sound is memory.]
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[声音是记忆]
06:15
And it's not just about the sound of a car.
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声音不仅是汽车的声音。
06:18
It's the memory of my father coming back home.
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它也是我父亲到家的回忆。
06:23
[Sound is hypnotizing.]
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[声音是催眠]
06:25
And sound has the power to create an unexpected sense of wonder,
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声音能够创造意外的惊奇感,
06:30
which hypnotizes.
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使人昏昏欲睡。
06:34
And ultimately,
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并且最终,
06:35
[Sound is superhuman.]
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[声音是超人]
06:36
sound goes beyond the human condition,
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声音超越了人类状态,
06:38
because it allows us to transcend.
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因为它能让我们超越。
06:44
As a second step, we define the sonic variations.
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第二步,我们定义了声音的变化。
06:49
[Identity prism]
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[身份棱镜]
06:50
Just like humans, where different bodies generate different voices,
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就跟人类一样,不同的身体 产生不同的声音,
06:54
also different car shapes have a different acoustic behavior
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不同的汽车外形 也有不同的声学行为,
06:59
which depends on the geometry and the materials.
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这取决于几何和材料。
07:03
So we have to know, first of all, how this car propagates the sound outside
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所以我们必须知道,首先, 这辆车是如何通过声学特性
07:10
by means of acoustic measurements.
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把声音传播出去的。
07:13
And just like a single voice is able to produce different tones and timbres,
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就像一个单一的声音可以 产生不同的音调和音高,
07:19
at the same time, we produce different sonic variations
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同时,在我定义的8个空间内,
07:22
within a space of eight words that I defined.
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我们制作了不同的声音变化。
07:28
And some of them are, to me, really important,
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其中有一些,对我而言,非常重要,
07:30
such as the concept of "visionary,"
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比如“远见”
07:33
of "elegance," of "dynamic," of "embracing."
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“优雅”、“动感”、“拥抱”的概念。
07:39
And once we have defined these two aspects,
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一旦我们定义了这两个方面,
07:42
we have what I call the identity prism,
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我们就有了我们所说的声音棱镜,
07:46
which is something like the sonic identity card of a car.
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这有点像汽车的声波身份证。
07:53
And as a third step, we enter the world of the sound design,
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作为第三步,我们进入了 声音设计的世界,
07:59
where the sound genes are composed
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在这里,声音基因被合成,
08:01
and a new archetype is conceived.
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一个新的原型被制造出来。
08:05
Now let me show you another example
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现在让我给你们看另一个例子
08:08
of how I transform a sound field into a melody.
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我是如何把声场转换成旋律的。
08:13
Think that I am a violin player on stage.
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把我想象成舞台上的小提琴手。
08:16
If I would start to play the violin,
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如果我开始拉小提琴,
08:18
I would generate a sound field which would propagate in this hall,
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我会产生一个声场, 在这个大厅里传播,
08:22
and at some point, the sound field would hit the side walls
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在某种程度上, 这个声场会撞到侧壁,
08:26
and would be scattered all over the place.
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散落到各处。
08:29
And this is how it looked like.
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这就是它的样子。
08:31
Some time ago, I captured several ways of sound to hit side walls.
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前段时间,我捕捉到了几种声音 撞击侧壁的方式。
08:38
And last year, I was asked by the Bavarian Radio Symphony Orchestra
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去年,我被巴伐利亚 广播交响乐团邀请
08:42
to compose ringtones that they were going to play.
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来创作他们要演奏的铃声。
08:46
So one of them, I had the idea to start from this sound field.
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其中一个,我有个想法 从这个声场开始。
08:51
I took a section,
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我选取了一个部分,
08:53
I superimposed the section over the distribution
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我把它叠加在舞台上
08:56
of the musicians onstage,
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音乐家的分布上,
08:58
and then I followed the blooming of the sound field
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然后通过三个参数跟踪
09:01
by means of three parameters:
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声场的绽放:
09:04
time, intensity and frequency.
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时间,响度和频率。
09:06
Then I wrote down all the gradients for each instrument,
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然后我写下了每个声音的梯度,
09:11
and as you can see, for instance,
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你们可以看到,例如,
09:13
the piece will start with the string section playing very softly,
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这首曲子将以弦乐部分的 轻柔演奏开始,
09:17
and then it's going to have a crescendo as the brasses, the woods will jump in,
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然后随着铜管乐器的演奏, 木管乐器也会加入进来,
09:23
and the melody will end with a harp and a piano
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然后旋律将以竖琴和钢琴
09:27
playing on the highest range.
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在最高音域演奏结束。
09:34
Let's listen how it sounded like.
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让我们听听这个声音的样子。
09:39
(Ethereal music)
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[纯音乐]
09:56
(Music ends)
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[音乐结束]
09:59
So this is the sound of my alarm clock, actually, in the morning.
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所以这其实是我 早晨闹钟的声音。
10:03
(Laughter)
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(笑声)
10:05
And now let's go back to electric cars.
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现在让我们回到电动汽车。
10:09
And let's listen to the first example that I showed you.
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让我们听听我为你们 展示的第一个例子。
10:20
(Hum)
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[引擎音]
10:28
And now I would like to show you how a potential sound,
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现在我想向你们展示, 基于电动汽车
10:33
based on the sound genetics for electric cars, could sound like.
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声音基因的的潜在 声音会是什么样。
10:39
(Ethereal music)
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[纯音乐]
10:43
(Pitch rises with acceleration)
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[音调随加速度增加]
10:52
Cars are a metaphor of time, distance and journey,
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汽车象征着时间、距离和旅程,
10:59
of setting out and returning,
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象征着出发和归来,
11:02
of anticipation and adventure,
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充满期待和冒险。
11:05
but, at the same time, of intelligence and complexity,
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但同时,也是智力和复杂性,
11:10
of human intuition and accomplishment.
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是人类的直觉和成就。
11:13
And the sound has to glorify all that.
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声音必须颂扬这一切。
11:17
I see cars both as living creatures
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我把汽车看作活的生物
11:21
and as highly complex performative art installations.
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也是高度复杂的表演艺术装置。
11:27
The sounds that we envision through sound genetics
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我们通过声音基因学想象的声音
11:31
allow us not only to celebrate this complexity
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让我们不仅可以庆祝这种复杂性
11:36
but also to make the world a more elegant and safe space.
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同时也让世界变得 更加优雅和安全。
11:42
Thank you.
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谢谢。
11:43
(Applause)
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(鼓掌)
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