Let's Learn English! Topic: Sound! ๐ŸŽค๐Ÿ”‰๐Ÿ•ฌ

39,534 views ใƒป 2023-02-05

Learn English with Bob the Canadian


์•„๋ž˜ ์˜๋ฌธ์ž๋ง‰์„ ๋”๋ธ”ํด๋ฆญํ•˜์‹œ๋ฉด ์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค. ๋ฒˆ์—ญ๋œ ์ž๋ง‰์€ ๊ธฐ๊ณ„ ๋ฒˆ์—ญ๋ฉ๋‹ˆ๋‹ค.

00:00
Well hello and welcome to this English lesson about sound.
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์†Œ๋ฆฌ์— ๊ด€ํ•œ ์ด ์˜์–ด ์ˆ˜์—…์— ์˜ค์‹  ๊ฒƒ์„ ํ™˜์˜ํ•ฉ๋‹ˆ๋‹ค.
00:04
Today we'll talk about one of the senses. We have a number of
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์˜ค๋Š˜ ์šฐ๋ฆฌ๋Š” ๊ฐ๊ฐ ์ค‘ ํ•˜๋‚˜์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐ ํ•  ๊ฒƒ ์ž…๋‹ˆ๋‹ค. ์šฐ๋ฆฌ์—๊ฒŒ๋Š” ์—ฌ๋Ÿฌ ๊ฐ€์ง€
00:08
senses. I think five taste, touch, sight, sound, or hearing
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๊ฐ๊ฐ์ด ์žˆ์Šต๋‹ˆ๋‹ค. ๋‹ค์„ฏ ๊ฐ€์ง€ ๋ฏธ๊ฐ, ์ด‰๊ฐ, ์‹œ๊ฐ, ์ฒญ๊ฐ ๋˜๋Š”
00:14
we would say. Um but we're going to talk about the world
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์šฐ๋ฆฌ๊ฐ€ ๋งํ•  ๊ฒƒ์ด๋ผ๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค. ์Œ, ํ•˜์ง€๋งŒ ์šฐ๋ฆฌ๋Š” ์†Œ๋ฆฌ ์˜ ์„ธ๊ณ„์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐํ•  ๊ฒƒ
00:18
of sound. Um I'm going to talk about everything that I could
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์ž…๋‹ˆ๋‹ค. ์Œ ์ฃผ์ œ ์†Œ๋ฆฌ์™€ ๊ด€๋ จ๋œ ์ด ์˜์–ด ์ˆ˜์—…์„ ์œ„ํ•ด ์ด ์Šฌ๋ผ์ด๋“œ๋ฅผ ๋””์ž์ธํ•˜๋ฉด์„œ ์–ด์ œ ์ƒ๊ฐํ•  ์ˆ˜ ์žˆ์—ˆ๋˜ ๋ชจ๋“  ๊ฒƒ์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐํ•˜๋ ค๊ณ  ํ•ฉ๋‹ˆ๋‹ค
00:21
think of yesterday when I designed these slides for this
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00:25
English lesson related to the topic sound. I think it will be
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. ์žฌ๋ฏธ์žˆ๋Š” ์ˆ˜์—…์ด ๋  ๊ฒƒ ๊ฐ™์•„์š”
00:30
a fun lesson. There are some pretty cool words and phrases
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. ์ด ์ˆ˜์—…์—๋Š” ๊ฝค ๋ฉ‹์ง„ ๋‹จ์–ด์™€ ๋ฌธ๊ตฌ
00:34
in this lesson. So once again welcome to this English lesson
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๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ์†Œ๋ฆฌ์— ๊ด€ํ•œ ์ด ์˜์–ด ์ˆ˜์—…์— ๋‹ค์‹œ ํ•œ ๋ฒˆ ์˜ค์‹  ๊ฒƒ์„ ํ™˜์˜ํ•ฉ๋‹ˆ๋‹ค
00:38
about sound. Sound. When we talk about sound we're talking
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. ์†Œ๋ฆฌ. ์šฐ๋ฆฌ๊ฐ€ ์†Œ๋ฆฌ
00:43
about waves that come into our ear and our ear turns it into
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์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐํ•  ๋•Œ ์šฐ๋ฆฌ๋Š” ์šฐ๋ฆฌ์˜ ๊ท€์— ๋“ค์–ด์˜ค๋Š” ํŒŒ๋™์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐ ํ•˜๊ณ  ์žˆ์œผ๋ฉฐ ์šฐ๋ฆฌ์˜ ๊ท€๋Š” ๊ทธ๊ฒƒ์„
00:50
information our brains can understand and then we hear
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์šฐ๋ฆฌ์˜ ๋‡Œ๊ฐ€ ์ดํ•ดํ•  ์ˆ˜ ์žˆ๋Š” ์ •๋ณด ๋กœ ๋ฐ”๊พผ ๋‹ค์Œ ๋ฌด์–ธ๊ฐ€๋ฅผ ๋“ฃ
00:54
something. So as you go through life you can see things with
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์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ์ธ์ƒ์„ ์‚ด๋‹ค
00:58
your eyes but you could also hear sounds with your ear you
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๋ณด๋ฉด ๋ˆˆ์œผ๋กœ ์‚ฌ๋ฌผ์„ ๋ณผ ์ˆ˜ ์žˆ์ง€๋งŒ ๊ท€๋กœ๋„ ์†Œ๋ฆฌ๋ฅผ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
01:03
probably hear sounds from the very minute you get up. The
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์•„๋งˆ ์ผ์–ด๋‚˜์ž๋งˆ์ž ์†Œ๋ฆฌ๋ฅผ ๋“ค์„ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์•„์นจ
01:06
first sound I hear in the morning is my alarm clock going
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์— ๊ฐ€์žฅ ๋จผ์ € ๋“ค๋ฆฌ๋Š” ์†Œ๋ฆฌ ๋Š” ์•Œ๋žŒ ์‹œ๊ณ„๊ฐ€ ์šธ๋ฆฌ๋Š” ์†Œ๋ฆฌ์ž…๋‹ˆ๋‹ค
01:10
off. But this morning I didn't actually have to use it. I woke
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. ํ•˜์ง€๋งŒ ์˜ค๋Š˜ ์•„์นจ์—๋Š” ์‹ค์ œ๋กœ ์‚ฌ์šฉํ•  ํ•„์š”๊ฐ€ ์—†์—ˆ์Šต๋‹ˆ๋‹ค.
01:15
up before my alarm clock. So the sound of my alarm clock
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๋‚˜๋Š” ์ž๋ช…์ข…๋ณด๋‹ค ๋จผ์ € ์ผ์–ด๋‚ฌ๋‹ค. ๊ทธ๋ž˜์„œ ์˜ค๋Š˜ ์•„์นจ์—๋Š” ๋‚ด ์ž๋ช…์ข… ์†Œ๋ฆฌ
01:19
wasn't required this morning. I woke up all on my own. So that
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๊ฐ€ ํ•„์š”ํ•˜์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค. ๋‚˜๋Š” ํ˜ผ์ž์„œ ์ผ์–ด๋‚ฌ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ
01:25
sound is what you hear with your ears. We'll talk a little
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๊ทธ ์†Œ๋ฆฌ๋Š” ๊ท€๋กœ ๋“ฃ๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค . ์šฐ๋ฆฌ๋Š” ๊ทธ๊ฒƒ์—
01:29
bit more about that as well. This is how You hear sound. Um
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๋Œ€ํ•ด์„œ๋„ ์กฐ๊ธˆ ๋” ์ด์•ผ๊ธฐํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์ด๊ฒƒ์ด ์†Œ๋ฆฌ๋ฅผ ๋“ฃ๋Š” ๋ฐฉ๋ฒ•์ž…๋‹ˆ๋‹ค. ์Œ, ์•„์ฃผ ์•„์ฃผ ์ž‘์€ ์†Œ๋ฆฌ๋ผ๋ฉด
01:34
you can sometimes feel sound in your chest if it's a very very
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๊ฐ€๋” ๊ฐ€์Šด์—์„œ ์†Œ๋ฆฌ๊ฐ€ ๋‚˜๋Š” ๊ฒƒ์„ ๋Š๋‚„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค
01:40
low sound. But ninety-nine point nine percent of the time
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. ํ•˜์ง€๋งŒ 99.9%์˜ ์‹œ๊ฐ„ ๋™์•ˆ
01:44
you hear sound with your ear. That is how you sense whether
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๊ท€๋กœ ์†Œ๋ฆฌ๋ฅผ ๋“ฃ์Šต๋‹ˆ๋‹ค. ๊ทธ๊ฒƒ์ด
01:50
there is noise or sound around you. I'm going to talk a little
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์ฃผ๋ณ€์— ์†Œ์Œ์ด๋‚˜ ์†Œ๋ฆฌ๊ฐ€ ์žˆ๋Š”์ง€ ๊ฐ์ง€ํ•˜๋Š” ๋ฐฉ๋ฒ• ์ž…๋‹ˆ๋‹ค. ๋™์‚ฌ hear์™€ listen
01:56
bit about the difference between the verb hear and
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์˜ ์ฐจ์ด์ ์— ๋Œ€ํ•ด ์กฐ๊ธˆ ์ด์•ผ๊ธฐํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค
02:00
listen. This can be confusing for some people. The best I
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. ์ด๊ฒƒ์€ ์–ด๋–ค ์‚ฌ๋žŒ๋“ค์—๊ฒŒ๋Š” ํ˜ผ๋ž€์Šค๋Ÿฌ์šธ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค .
02:05
find to describe this is this. When you hear something you are
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์ด๊ฒƒ์„ ์„ค๋ช…ํ•˜๊ธฐ ์œ„ํ•ด ๋‚ด๊ฐ€ ์ฐพ์€ ์ตœ์„ ์€ ์ด๊ฒƒ์ž…๋‹ˆ๋‹ค. ๋‹น์‹ ์ด ๋ฌด์–ธ๊ฐ€๋ฅผ ๋“ค์„ ๋•Œ ๋‹น์‹ ์€
02:10
not choosing to do that. It happens to you. If Jen drops a
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๊ทธ๊ฒƒ์„ ํ•˜๊ธฐ๋กœ ์„ ํƒํ•œ ๊ฒƒ์ด ์•„๋‹™๋‹ˆ๋‹ค. ๊ทธ๊ฒƒ์€ ๋‹น์‹ ์—๊ฒŒ ์ผ์–ด๋‚œ๋‹ค. Jen
02:16
plate in the kitchen I will hear that. When I walk outside
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์ด ๋ถ€์—Œ์— ์ ‘์‹œ๋ฅผ ๋–จ์–ด๋œจ๋ฆฌ๋ฉด ๊ทธ ์†Œ๋ฆฌ๋ฅผ ๋“ค์„ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๋ฐ–์—
02:21
if a dog barks I hear it. The sound is coming to me. I am not
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๋‚˜๊ฐ€๋ฉด ๊ฐœ๊ฐ€ ์ง–๋Š” ์†Œ๋ฆฌ๊ฐ€ ๋“ค๋ฆฐ๋‹ค. ์†Œ๋ฆฌ๊ฐ€ ๋‚˜์—๊ฒŒ ๋‹ค๊ฐ€์˜ค๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ๋‚˜๋Š”
02:27
choosing to hear that sound. It is happening to me. So when you
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๊ทธ ์†Œ๋ฆฌ๋ฅผ ๋“ฃ๊ธฐ๋กœ ์„ ํƒํ•œ ๊ฒƒ์ด ์•„๋‹ˆ๋‹ค. ๊ทธ๊ฒƒ์€ ๋‚˜์—๊ฒŒ ์ผ์–ด๋‚˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ
02:32
hear something you're describing a sound that is
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๋‹น์‹ ์ด ๋ฌด์–ธ๊ฐ€๋ฅผ ๋“ค์„ ๋•Œ ๋‹น์‹  ์€ ๋‹น์‹ ์—๊ฒŒ ์ผ์–ด๋‚˜๊ณ  ์žˆ๋Š” ์†Œ๋ฆฌ๋ฅผ ๋ฌ˜์‚ฌํ•˜๊ณ  ์žˆ๋Š”
02:35
happening to you. When you listen it changes a little bit.
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๊ฒƒ์ž…๋‹ˆ๋‹ค. ๋“ฃ๋‹ค ๋ณด๋ฉด ์กฐ๊ธˆ ๋‹ฌ๋ผ์ง‘๋‹ˆ๋‹ค.
02:40
When you listen you are deciding to hear those sounds.
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๋“ค์„ ๋•Œ ๋‹น์‹ ์€ ๊ทธ ์†Œ๋ฆฌ๋ฅผ ๋“ฃ๊ธฐ๋กœ ๊ฒฐ์ •ํ•ฉ๋‹ˆ๋‹ค.
02:45
I know I use the verb here and there but I have to do that.
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๋‚˜๋Š” ์—ฌ๊ธฐ์ €๊ธฐ์„œ ๋™์‚ฌ๋ฅผ ์‚ฌ์šฉํ•œ๋‹ค๋Š” ๊ฒƒ์„ ์•Œ๊ณ  ์žˆ์ง€๋งŒ ๊ทธ๋ ‡๊ฒŒ ํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.
02:48
When you listen to music you have decided to listen to
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๋‹น์‹ ์ด ์Œ์•…์„ ๋“ค์„ ๋•Œ ๋‹น์‹ ์€ ์Œ์•… ์„ ๋“ฃ๊ธฐ๋กœ ๊ฒฐ์ •ํ–ˆ์Šต๋‹ˆ๋‹ค
02:52
music. When you listen to someone talking you have
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. ๋ˆ„๊ตฐ๊ฐ€๊ฐ€ ๋งํ•˜๋Š” ๊ฒƒ์„ ๋“ค์„ ๋•Œ ๋‹น์‹ 
02:55
decided I'm going to listen to them. So the basic difference
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์€ ๋‚ด๊ฐ€ ๊ทธ๋“ค์˜ ๋ง์„ ๋“ฃ๊ฒ ๋‹ค๊ณ  ๊ฒฐ์ • ํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ๊ธฐ๋ณธ์ ์ธ ์ฐจ์ด์ 
03:00
is when you hear something it's happening to you. You hear a
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์€ ๋‹น์‹ ์—๊ฒŒ ์ผ์–ด๋‚˜๊ณ  ์žˆ๋Š” ์ผ์„ ๋“ค์„ ๋•Œ์ž…๋‹ˆ๋‹ค. ๊ฐœ ์ง–๋Š” ์†Œ๋ฆฌ๊ฐ€ ๋“ค๋ฆฝ๋‹ˆ๋‹ค
03:05
dog bark. You hear someone drop a plate. You didn't side for
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. ๋ˆ„๊ตฐ๊ฐ€ ์ ‘์‹œ๋ฅผ ๋–จ์–ด๋œจ๋ฆฌ๋Š” ์†Œ๋ฆฌ๊ฐ€ ๋“ค๋ฆฝ๋‹ˆ๋‹ค . ๋‹น์‹ ์€
03:09
that to happen. Something has just happened and you hear it.
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๊ทธ๋Ÿฐ ์ผ์ด ์ผ์–ด๋‚˜๋„๋ก ํŽธ๋“ค์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค. ๋ฐฉ๊ธˆ ๋ฌด์Šจ ์ผ์ด ์ผ์–ด๋‚ฌ๊ณ  ๋‹น์‹ ์€ ๊ทธ๊ฒƒ์„ ๋“ฃ์Šต๋‹ˆ๋‹ค.
03:14
But when you listen to a podcast or when you listen to
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ํ•˜์ง€๋งŒ ์ง€๊ธˆ ๋‹น์žฅ ํŒŸ์บ์ŠคํŠธ๋ฅผ ๋“ฃ
03:18
my voice right now or when you listen let me see what else
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๊ฑฐ๋‚˜ ๋‚ด ๋ชฉ์†Œ๋ฆฌ๋ฅผ ๋“ค์„ ๋•Œ ๋˜๋Š”
03:23
would you when you listen to music you have decided that
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์Œ์•…์„ ๋“ค์„ ๋•Œ ๋‹ค๋ฅธ
03:27
that is something that you want to do. So hopefully that helps
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๋ฌด์—‡์„ ํ•  ๊ฒƒ์ธ์ง€ ๋“ค์„ ๋•Œ ๊ทธ๊ฒƒ์ด ๋‹น์‹ ์ด ํ•˜๊ณ  ์‹ถ์€ ์ผ์ด๋ผ๊ณ  ๊ฒฐ์ •ํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿผ
03:30
you a little bit. When you hear something you have no choice.
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์กฐ๊ธˆ์ด๋‚˜๋งˆ ๋„์›€์ด ๋˜์…จ์œผ๋ฉด ํ•ฉ๋‹ˆ๋‹ค. ๋‹น์‹ ์ด ๋ฌด์–ธ๊ฐ€๋ฅผ ๋“ค์—ˆ์„ ๋•Œ ๋‹น์‹ ์€ ์„ ํƒ์˜ ์—ฌ์ง€๊ฐ€ ์—†์Šต๋‹ˆ๋‹ค. ๋‹น์‹ 
03:34
When you listen to something you have chosen to do that.
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์ด ๋ฌด์–ธ๊ฐ€๋ฅผ ๋“ค์„ ๋•Œ ๋‹น์‹ ์€ ๊ทธ๊ฒƒ์„ ํ•˜๊ธฐ๋กœ ์„ ํƒํ–ˆ์Šต๋‹ˆ๋‹ค.
03:40
Sound is made up of waves that move through the air. Now
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์†Œ๋ฆฌ๋Š” ๊ณต๊ธฐ๋ฅผ ํ†ตํ•ด ์›€์ง์ด๋Š” ํŒŒ๋™์œผ๋กœ ๊ตฌ์„ฑ๋ฉ๋‹ˆ๋‹ค. ์ด์ œ
03:44
remember this is not an a science lesson. I'm not going
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์ด๊ฒƒ์€ ๊ณผํ•™ ์ˆ˜์—…์ด ์•„๋‹˜์„ ๊ธฐ์–ตํ•˜์‹ญ์‹œ์˜ค .
03:48
to go into all the details. But there is something that makes
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์ž์„ธํ•œ ๋‚ด์šฉ์€ ๋‹ค๋ฃจ์ง€ ์•Š๊ฒ ์Šต๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ ์†Œ๋ฆฌ๋ฅผ ๋‚ด๋Š” ๋ฌด์–ธ๊ฐ€๊ฐ€
03:53
the sound and it actually creates waves in the air that
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์žˆ๊ณ  ์‹ค์ œ๋กœ ๊ณต๊ธฐ ์ค‘์—
03:57
we can't see. They are invisible. And our ear then
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์šฐ๋ฆฌ๊ฐ€ ๋ณผ ์ˆ˜ ์—†๋Š” ํŒŒ๋™์„ ๋งŒ๋“ค์–ด๋ƒ…๋‹ˆ๋‹ค. ๊ทธ๋“ค์€ ๋ณด์ด์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋ฉด ๊ท€๊ฐ€
04:01
starts to move at that same speed. Our eardrum. So again
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๊ฐ™์€ ์†๋„๋กœ ์›€์ง์ด๊ธฐ ์‹œ์ž‘ํ•ฉ๋‹ˆ๋‹ค . ์šฐ๋ฆฌ ๊ณ ๋ง‰. ๋”ฐ๋ผ์„œ
04:06
not a science lesson but sound waves are how sound travels.
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๋‹ค์‹œ ๊ณผํ•™ ์ˆ˜์—…์ด ์•„๋‹ˆ๋ผ ์ŒํŒŒ๊ฐ€ ์†Œ๋ฆฌ๊ฐ€ ์ด๋™ํ•˜๋Š” ๋ฐฉ์‹์ž…๋‹ˆ๋‹ค.
04:11
When I yell my my voice travels. I have created sound
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๋‚ด๊ฐ€ ์†Œ๋ฆฌ๋ฅผ ์ง€๋ฅด๋ฉด ๋‚ด ๋ชฉ์†Œ๋ฆฌ๊ฐ€ ์›€์ง์ž…๋‹ˆ๋‹ค. ๋‚˜๋Š” ๊ณต๊ธฐ๋ฅผ
04:17
waves that travel through the air and eventually they they
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ํ†ตํ•ด ์ด๋™ํ•˜๋Š” ์ŒํŒŒ๋ฅผ ๋งŒ๋“ค์–ด ๊ฒฐ๊ตญ
04:22
hit someone's ear and they can hear me. The main way we make
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๋ˆ„๊ตฐ๊ฐ€์˜ ๊ท€์— ๋ถ€๋”ชํžˆ๋ฉด ๋‚ด ๋ง์„ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์šฐ๋ฆฌ
04:28
sound with technology is to use a speaker. You might have
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๊ฐ€ ๊ธฐ์ˆ ๋กœ ์†Œ๋ฆฌ๋ฅผ ๋งŒ๋“œ๋Š” ์ฃผ๋œ ๋ฐฉ๋ฒ• ์€ ์Šคํ”ผ์ปค๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
04:32
computer speakers on each side of your computer at home or
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์ง‘์— ์žˆ๊ฑฐ๋‚˜ ์ง€๊ธˆ ๋‹น์žฅ ์ปดํ“จํ„ฐ ์–‘์ชฝ์— ์ปดํ“จํ„ฐ ์Šคํ”ผ์ปค๊ฐ€ ์žˆ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค
04:36
maybe right now. If you're listening with earbud Oops.
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. ์ด์–ด๋ฒ„๋“œ๋กœ ๋“ฃ๊ณ  ์žˆ๋‹ค๋ฉด ์•—.
04:41
Earbuds. There's actually a tiny speaker inside. When you
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์ด์–ดํฐ. ์‹ค์ œ๋กœ ๋‚ด๋ถ€์—๋Š” ์ž‘์€ ์Šคํ”ผ์ปค๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.
04:46
talk on your phone maybe the sound right now for you while
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ํœด๋Œ€์ „ํ™”๋กœ ํ†ตํ™”ํ•  ๋•Œ ๋‚ด ๋ง์„ ๋“ฃ๊ณ  ์žˆ๋Š” ๋™์•ˆ ํœด๋Œ€์ „ํ™”
04:50
you're listening to me is coming out of one of the
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์— ์žˆ๋Š” ์Šคํ”ผ์ปค ์ค‘ ํ•˜๋‚˜์—์„œ ๋‚˜์˜ค๋Š” ์†Œ๋ฆฌ
04:52
speakers that is on your phone. So the speaker is just a little
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์ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ์Šคํ”ผ์ปค๋Š” ์–ป๋Š” ์ •๋ณด๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ์ŒํŒŒ๋ฅผ ์ƒ์„ฑ
04:58
machine or a little piece of technology that will create
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ํ•˜๋Š” ์ž‘์€ ๊ธฐ๊ณ„ ๋˜๋Š” ๊ธฐ์ˆ ์˜ ์ผ๋ถ€์ผ ๋ฟ์ž…๋‹ˆ๋‹ค
05:03
sound waves based on the information it is getting. And
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.
05:09
then of course this in front of me is a microphone. So as I
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๊ทธ๋ฆฌ๊ณ  ๋ฌผ๋ก  ์ œ ์•ž์— ์žˆ๋Š” ๊ฒƒ์€ ๋งˆ์ดํฌ์ž…๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ๋‚ด๊ฐ€ ์ด๊ฒƒ์—
05:14
talk into this the sound of my voice moves something inside.
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๋Œ€ํ•ด ๋งํ•  ๋•Œ ๋‚ด ๋ชฉ์†Œ๋ฆฌ์˜ ์†Œ๋ฆฌ๊ฐ€ ๋‚ด๋ถ€์—์„œ ๋ฌด์–ธ๊ฐ€๋ฅผ ์›€์ง์ž…๋‹ˆ๋‹ค.
05:19
It's converted into electricity. And it gets sent
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์ „๊ธฐ๋กœ ๋ณ€ํ™˜๋ฉ๋‹ˆ๋‹ค . ๊ทธ๋ฆฌ๊ณ  ๊ทธ๊ฒƒ์€
05:23
all over the world. And then at your end your earbuds or your
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์ „ ์„ธ๊ณ„๋กœ ๋ณด๋‚ด์ง‘๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ๋‹น์‹ ์˜ ๋์—์„œ ๋‹น์‹ ์˜ ์ด์–ด๋ฒ„๋“œ๋‚˜
05:27
speakers recreate the sound of my voice. So the microphone is
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์Šคํ”ผ์ปค๊ฐ€ ๋‚ด ๋ชฉ์†Œ๋ฆฌ๋ฅผ ์žฌํ˜„ํ•ฉ๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ๋งˆ์ดํฌ๋Š” ์†Œ๋ฆฌ
05:32
what for lack of a better way takes sound in. And the speaker
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๋ฅผ ๋ฐ›์•„๋“ค์ด๋Š” ๋” ๋‚˜์€ ๋ฐฉ๋ฒ• ์ด ์—†๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ์Šคํ”ผ์ปค๋Š” ์†Œ๋ฆฌ๋ฅผ ๋‚ด
05:37
puts sound out. Microphones and speakers are awesome. They are
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๋ณด๋ƒ…๋‹ˆ๋‹ค. ๋งˆ์ดํฌ์™€ ์Šคํ”ผ์ปค๋Š” ๊ต‰์žฅํ•ฉ๋‹ˆ๋‹ค. ๊ทธ๊ฒƒ๋“ค
05:42
what allow me to teach English like this on the internet.
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์€ ๋‚ด๊ฐ€ ์ธํ„ฐ๋„ท์—์„œ ์ด์™€ ๊ฐ™์€ ์˜์–ด๋ฅผ ๊ฐ€๋ฅด์น  ์ˆ˜ ์žˆ๊ฒŒ ํ•ด์ฃผ๋Š” ๊ฒƒ ์ž…๋‹ˆ๋‹ค.
05:46
Super fun. And then of course I mentioned earbuds but there's
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์Šˆํผ ์žฌ๋ฏธ. ๊ทธ๋ฆฌ๊ณ  ๋ฌผ๋ก  ์ด์–ด๋ฒ„๋“œ์— ๋Œ€ํ•ด ์–ธ๊ธ‰ํ–ˆ์ง€๋งŒ
05:51
also headphones. These are things that you put on your ear
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ํ—ค๋“œํฐ๋„ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๊ฒƒ์€
05:56
or in your ear. Headphones go on your ear or over your ear
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๊ท€์— ๋Œ€๊ฑฐ๋‚˜ ๊ท€์— ๋Œ€๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ํ—ค๋“œํฐ ์€ ๊ท€์— ์ฐฉ์šฉํ•˜๊ฑฐ๋‚˜ ๊ท€์— ์ฐฉ์šฉํ•˜๋ฉฐ ๊ท€์— ํ—ค๋“œํฐ์ด๋‚˜ ์ด์–ด๋ฒ„๋“œ
06:01
and they allow you to listen privately when you wear
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๋ฅผ ์ฐฉ์šฉํ•  ๋•Œ ๊ฐœ์ธ์ ์œผ๋กœ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค
06:05
headphones or earbuds which go in your ear. Other people can't
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. ๋‹ค๋ฅธ ์‚ฌ๋žŒ๋“ค์€
06:10
hear what you're listening to. So one of the ways to hear
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๋‹น์‹ ์ด ๋“ฃ๊ณ  ์žˆ๋Š” ๊ฒƒ์„ ๋“ค์„ ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ
06:13
sounds one of the ways to listen to some one or to listen
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์†Œ๋ฆฌ๋ฅผ ๋“ฃ๋Š” ๋ฐฉ๋ฒ• ์ค‘ ํ•˜๋‚˜๋ฅผ ๋“ฃ๊ฑฐ๋‚˜ ์Œ์•…์„ ๋“ฃ๋Š” ๋ฐฉ๋ฒ• ์ค‘ ํ•˜๋‚˜
06:18
to music is to use a pair of headphones or a pair of
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๋Š” ํ—ค๋“œํฐ์ด๋‚˜ ์ด์–ด๋ฒ„๋“œ๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ๊ฒƒ
06:22
earbuds. We don't always add the word pair. You know in
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์ž…๋‹ˆ๋‹ค. ํ•ญ์ƒ ์Œ์ด๋ผ๋Š” ๋‹จ์–ด๋ฅผ ์ถ”๊ฐ€ํ•˜์ง€๋Š” ์•Š์Šต๋‹ˆ๋‹ค. ์šฐ๋ฆฌ๋Š”
06:25
English we like to shorten things right? So we use
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์˜์–ด๋กœ ์งง๊ฒŒ ๋งํ•˜๋Š” ๊ฒƒ์„ ์ข‹์•„ํ•œ๋‹ค๋Š” ๊ฒƒ์„ ์•Œ๊ณ  ์žˆ์Šต๋‹ˆ๊นŒ? ๊ทธ๋ž˜์„œ ์šฐ๋ฆฌ๋Š”
06:28
headphones or earbuds. And there's a general term called
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ํ—ค๋“œํฐ์ด๋‚˜ ์ด์–ดํฐ์„ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค. ์˜ค๋””์˜ค๋ผ๋Š” ์ผ๋ฐ˜์ ์ธ ์šฉ์–ด๊ฐ€
06:35
audio. We use the word audio to refer to many things in the
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์žˆ์Šต๋‹ˆ๋‹ค. ์šฐ๋ฆฌ๋Š” ์˜ค๋””์˜ค๋ผ๋Š” ๋‹จ์–ด๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์†Œ๋ฆฌ ์˜ ์„ธ๊ณ„์—์„œ ๋งŽ์€ ๊ฒƒ์„ ์–ธ๊ธ‰ํ•ฉ๋‹ˆ๋‹ค
06:40
world of sound. You can buy audio equipment. You can be an
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. ์˜ค๋””์˜ค ์žฅ๋น„๋ฅผ ๊ตฌ์ž…ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค . ์˜ค๋””์˜ค ๊ธฐ์ˆ ์ž๊ฐ€ ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค
06:44
audio technician. Um you can listen to audio books. So it's
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. ์Œ ์˜ค๋””์˜ค๋ถ์„ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ์†Œ๋ฆฌ์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐํ•˜๋Š”
06:49
another I guess more formal way to talk about sound. Um you
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๋˜ ๋‹ค๋ฅธ ๊ณต์‹์ ์ธ ๋ฐฉ๋ฒ•์ด๋ผ๊ณ  ์ƒ๊ฐ ํ•ฉ๋‹ˆ๋‹ค. ์Œ
06:55
have things like audio books were one of the coolest things
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์˜ค๋””์˜ค๋ถ๊ณผ ๊ฐ™์€ ๊ฒƒ๋“ค์ด
06:59
that I discovered when I was starting to perfect my French.
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์ œ๊ฐ€ ํ”„๋ž‘์Šค์–ด๋ฅผ ์™„๋ฒฝํ•˜๊ฒŒ ํ•˜๊ธฐ ์‹œ์ž‘ํ–ˆ์„ ๋•Œ ๋ฐœ๊ฒฌํ•œ ๊ฐ€์žฅ ๋ฉ‹์ง„ ๊ฒƒ ์ค‘ ํ•˜๋‚˜์˜€์Šต๋‹ˆ๋‹ค.
07:03
Audiobooks are really cool because you can listen to
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์˜ค๋””์˜ค๋ถ์€ ๋ˆ„๊ตฐ๊ฐ€์˜ ๋ง์„ ๋“ค์„ ์ˆ˜ ์žˆ๊ธฐ ๋•Œ๋ฌธ์— ์ •๋ง ๋ฉ‹์ง‘๋‹ˆ๋‹ค
07:06
someone Read the book to you. So audio is kind of a a more
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. ์ฑ…์„ ์ฝ์–ด์ฃผ์„ธ์š”. ๋”ฐ๋ผ์„œ ์˜ค๋””์˜ค๋Š” ์†Œ๋ฆฌ์˜ ์„ธ๊ณ„์— ์žˆ๋Š” ์‚ฌ๋ฌผ์— ๋Œ€ํ•œ ์ข€ ๋”
07:11
formal general term for the things in the world of sound.
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ํ˜•์‹์ ์ธ ์ผ๋ฐ˜์ ์ธ ์šฉ์–ด์ž…๋‹ˆ๋‹ค .
07:17
Um you can work at an audio visual department if you're at
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์Œ, ๋Œ€ํ•™๊ต์— ๋‹ค๋‹ˆ๋ฉด ์‹œ์ฒญ๊ฐํ•™๊ณผ์—์„œ ์ผํ•  ์ˆ˜ ์žˆ์–ด์š”
07:21
a university. I did that when I was in university. I worked at
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. ๋Œ€ํ•™๊ต ๋•Œ ๊ทธ๋žฌ์–ด์š”. ์ €๋Š”
07:24
the audio visual department. So I worked with equipment that
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์‹œ์ฒญ๊ฐ ๋ถ€์„œ์—์„œ ์ผํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ์˜์ƒ
07:29
was used for audio as well as for video. So sound because it
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๋ฟ๋งŒ ์•„๋‹ˆ๋ผ ์˜ค๋””์˜ค์—๋„ ์‚ฌ์šฉ๋˜๋Š” ์žฅ๋น„๋กœ ์ž‘์—…์„ ํ–ˆ์Šต๋‹ˆ๋‹ค . ์†Œ๋ฆฌ
07:35
travels in waves has a speed. And the speed of sound at my
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๋Š” ํŒŒ๋„๋ฅผ ํƒ€๊ณ  ์ด๋™ํ•˜๊ธฐ ๋•Œ๋ฌธ์— ์†๋„๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ๋‚ด๊ฐ€ ์ดํ•ดํ•˜๋Š” ์†Œ๋ฆฌ์˜ ์†๋„
07:40
understanding is 343 meters per second. But I think that's at
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๋Š” ์ดˆ๋‹น 343๋ฏธํ„ฐ์ž…๋‹ˆ๋‹ค . ํ•˜์ง€๋งŒ
07:45
20 ยฐ Celsius. And maybe that's at sea level. Correct me if I'm
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์„ญ์”จ 20๋„๋ผ๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ์•„๋งˆ๋„ ๊ทธ๊ฒƒ์€ ํ•ด์ˆ˜๋ฉด์— ์žˆ์„ ๊ฒƒ์ž…๋‹ˆ๋‹ค .
07:50
wrong. Again this is not an English lesson. But sound
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ํ‹€ ๋ ธ์œผ๋ฉด ๊ณ ์ณ์ค˜. ๋‹ค์‹œ ๋งํ•˜์ง€๋งŒ ์ด๊ฒƒ์€ ์˜์–ด ์ˆ˜์—…์ด ์•„๋‹™๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์†Œ๋ฆฌ
07:54
travels at a certain speed. Um and so when you say something
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๋Š” ์ผ์ •ํ•œ ์†๋„๋กœ ์ด๋™ํ•ฉ๋‹ˆ๋‹ค. ์Œ , ๊ทธ๋ž˜์„œ ๋‹น์‹ ์ด ๋ฌด์–ธ๊ฐ€๋ฅผ ๋งํ•  ๋•Œ ๋ˆ„๊ตฐ๊ฐ€์˜ ๊ท€์—
07:59
it actually takes a split second for it to get to some
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๋„๋‹ฌํ•˜๋Š” ๋ฐ ์‹ค์ œ๋กœ ๋ช‡ ์ดˆ๊ฐ€ ๊ฑธ๋ฆฝ๋‹ˆ๋‹ค
08:03
one's ear. You can hear this if you are somewhere where you're
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.
08:07
yelling at someone far away. Um or if you see something happen
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๋ฉ€๋ฆฌ ์žˆ๋Š” ๋ˆ„๊ตฐ๊ฐ€์—๊ฒŒ ๊ณ ํ•จ์„ ์ง€๋ฅด๋Š” ์–ด๋”˜๊ฐ€์— ์žˆ์„ ๋•Œ ์ด ์†Œ๋ฆฌ๋ฅผ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์Œ , ์•„๋‹ˆ๋ฉด ๋ฉ€๋ฆฌ์„œ ๋ฌด์Šจ ์ผ์ด ์ผ์–ด๋‚˜๋Š” ๊ฒƒ์„ ๋ณธ๋‹ค๋ฉด
08:12
far away that's loud. You won't hear the sound immediately
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๊ทธ๊ฒƒ์€ ์‹œ๋„๋Ÿฝ์Šต๋‹ˆ๋‹ค.
08:16
because the speed of sound requires a certain amount of
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์†Œ๋ฆฌ์˜ ์†๋„ ๋Š” ์ผ์ • ์‹œ๊ฐ„์ด
08:21
time or that sound to arrive at your ears. But speed of sound
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๊ฑธ๋ฆฌ๊ฑฐ๋‚˜ ๊ทธ ์†Œ๋ฆฌ๊ฐ€ ๊ท€์— ๋„๋‹ฌํ•˜๊ธฐ ๋•Œ๋ฌธ์— ์†Œ๋ฆฌ๊ฐ€ ๋ฐ”๋กœ ๋“ค๋ฆฌ์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์†Œ๋ฆฌ์˜ ์†๋„
08:27
I'm not sure what it is in kilometres. I think it's over
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๋Š” ํ‚ฌ๋กœ๋ฏธํ„ฐ ๋‹จ์œ„๋กœ ๋ฌด์—‡์ธ์ง€ ์ž˜ ๋ชจ๋ฅด๊ฒ ์Šต๋‹ˆ๋‹ค . ์ œ ์ƒ๊ฐ์—๋Š”
08:29
twelve hundred kilometres per second or something like that.
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์ดˆ๋‹น 1200km๊ฐ€ ๋„˜๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.
08:33
Don't quote me on it. Um oh yeah Would be wouldn't it? No.
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๊ทธ๊ฒƒ์— ๋Œ€ํ•ด ๋‚ด ๋ง์„ ์ธ์šฉํ•˜์ง€ ๋งˆ์‹ญ์‹œ์˜ค. ์Œ ์˜ค ์˜ˆ ๊ทธ๋ ‡์ง€ ์•Š์„๊นŒ์š”?
08:37
1, 200 kilometres an hour. See again not a science lesson at
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1๋ฒˆ, ์‹œ์† 200km. ๋‹ค์‹œ ๊ณผํ•™ ์ˆ˜์—…์ด
08:41
all. There's something called the sound barrier. So when an
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์•„๋‹™๋‹ˆ๋‹ค. ๋ฐฉ์Œ๋ฒฝ์ด๋ผ๋Š” ๊ฒƒ์ด ์žˆ์Šต๋‹ˆ๋‹ค . ๋”ฐ๋ผ์„œ
08:47
airplane goes faster than the speed of sound they need to get
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๋น„ํ–‰๊ธฐ๊ฐ€ ์Œ์†๋ณด๋‹ค ๋น ๋ฅด๊ฒŒ ๋น„ํ–‰ ํ•  ๋•Œ๋Š”
08:52
through the sound barrier. The faster a vehicle usually an
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์Œ์† ์žฅ๋ฒฝ์„ ํ†ต๊ณผํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. ๋” ๋น ๋ฅธ ์ฐจ๋Ÿ‰์€ ์ผ๋ฐ˜์ ์œผ๋กœ
08:57
airplane because they're the only things that really go that
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๋น„ํ–‰๊ธฐ ์ž…๋‹ˆ๋‹ค. ์‹ค์ œ๋กœ ๊ทธ๋ ‡๊ฒŒ ๋นจ๋ฆฌ ๊ฐ€๋Š” ์œ ์ผํ•œ ๋ฌผ๊ฑด์ด๊ธฐ ๋•Œ๋ฌธ
09:00
fast. When a vehicle or when an airplane gets close to the
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์ž…๋‹ˆ๋‹ค. ์ฐจ๋Ÿ‰์ด๋‚˜ ๋น„ํ–‰๊ธฐ๊ฐ€ ์Œ์†์— ๊ฐ€๊นŒ์›Œ์ง€๋ฉด ์ŒํŒŒ๊ฐ€ ์ฐจ๋Ÿ‰
09:04
speed of sound the sound waves start to compress in front of
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์•ž์—์„œ ์••์ถ•๋˜๊ธฐ ์‹œ์ž‘
09:08
it and it's kind of like a barrier. And once they get
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ํ•˜๋ฉฐ ์ผ์ข…์˜ ์žฅ๋ฒฝ๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค . ๊ทธ๋ฆฌ๊ณ  ๊ทธ๋“ค์ด
09:12
through it I think it's There's less turbulence. I don't know
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๊ทธ๊ฒƒ์„ ํ†ต๊ณผํ•˜๋ฉด ๋‚œ๊ธฐ๋ฅ˜๊ฐ€ ์ ๋‹ค๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค .
09:17
all the details but I do know that for a long time airplanes
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๋‚˜๋Š” ๋ชจ๋“  ์„ธ๋ถ€ ์‚ฌํ•ญ์„ ์•Œ์ง€ ๋ชปํ•˜์ง€๋งŒ ์˜ค๋žซ๋™์•ˆ ๋น„ํ–‰๊ธฐ
09:21
never broke the sound barrier. But eventually I think it was
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๊ฐ€ ์Œ์† ์žฅ๋ฒฝ์„ ํ—ˆ๋ฌผ์ง€ ์•Š์•˜๋‹ค๋Š” ๊ฒƒ์„ ์•Œ๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ ๊ฒฐ๊ตญ Chuck Yeager๋ผ๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค
09:25
Chuck Yeager. Maybe Brent's here in Cantelli's. Um
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. Brent๊ฐ€ ์—ฌ๊ธฐ Cantelli's์— ์žˆ์„ ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค. ์Œ
09:28
eventually they were able to break the sound barrier. They
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๊ฒฐ๊ตญ ๊ทธ๋“ค์€ ์Œ์† ์žฅ๋ฒฝ์„ ๊นฐ ์ˆ˜ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋“ค์€
09:31
were able to design a plane. Um that could go faster than the
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๋น„ํ–‰๊ธฐ๋ฅผ ์„ค๊ณ„ํ•  ์ˆ˜ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค. ์Œ ์Œ์† ๋ณด๋‹ค ๋” ๋นจ๋ฆฌ ๊ฐˆ ์ˆ˜
09:37
speed of sound. Sound check. Testing one two. Testing 123.
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์žˆ์Šต๋‹ˆ๋‹ค. ์‚ฌ์šด๋“œ ์ฒดํฌ. ํ•˜๋‚˜ ๋‘˜ ํ…Œ์ŠคํŠธ. ํ…Œ์ŠคํŠธ 123.
09:43
Or check one two. Check one two. Check one23. A sound check
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๋˜๋Š” ํ•˜๋‚˜ ๋‘˜ ํ™•์ธํ•˜์‹ญ์‹œ์˜ค. ํ•˜๋‚˜ ๋‘˜ ํ™•์ธํ•˜์„ธ์š” . ํ•˜๋‚˜๋ฅผ ํ™•์ธํ•˜์‹ญ์‹œ์˜ค23.
09:47
something that people do before they start using a microphone.
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์‚ฌ๋žŒ๋“ค์ด ๋งˆ์ดํฌ๋ฅผ ์‚ฌ์šฉํ•˜๊ธฐ ์ „์— ์ˆ˜ํ–‰ํ•˜๋Š” ์†Œ๋ฆฌ ํ™•์ธ ์ž‘์—…์ž…๋‹ˆ๋‹ค.
09:52
So when I am about to start my English lesson I sometimes tap
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๊ทธ๋ž˜์„œ ์ €๋Š” ์˜์–ด ์ˆ˜์—…์„ ์‹œ์ž‘ํ•˜๋ ค๊ณ  ํ•  ๋•Œ
09:57
my mic. And then on my screen I can see that the mic is
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๊ฐ€๋” ๋งˆ์ดํฌ๋ฅผ ๋‘๋“œ๋ฆฝ๋‹ˆ๋‹ค. ๊ทธ๋Ÿฐ ๋‹ค์Œ ๋‚ด ํ™”๋ฉด ์—์„œ ๋งˆ์ดํฌ๊ฐ€ ์ž‘๋™ํ•˜๋Š” ๊ฒƒ์„ ๋ณผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค
10:01
working. So it's a very subtle sound check. I don't do this. I
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. ๋”ฐ๋ผ์„œ ๋งค์šฐ ๋ฏธ๋ฌ˜ํ•œ ์‚ฌ์šด๋“œ ์ฒดํฌ์ž…๋‹ˆ๋‹ค. ๋‚˜๋Š” ์ด๊ฒƒ์„ํ•˜์ง€ ์•Š๋Š”๋‹ค. ๋‚˜๋Š”
10:05
don't go testing testing 12three testing. But that is
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ํ…Œ์ŠคํŠธ ํ…Œ์ŠคํŠธ 12three ํ…Œ์ŠคํŠธ๋ฅผ ๊ฐ€์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ ๊ณต์—ฐ์„ ์ผ์ฐ ๋ณด๋Ÿฌ ๊ฐ€๋ฉด
10:10
something you might hear if you go to a show early. You might
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์ด๋Ÿฐ ๋ง์„ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค .
10:15
see a sound technician or an audio technician do a sound
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์Œํ–ฅ ๊ธฐ์ˆ ์ž๋‚˜ ์Œํ–ฅ ๊ธฐ์ˆ ์ž๊ฐ€ ์Œํ–ฅ
10:19
check and they'll go check testing testing 123 and they
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๊ฒ€์‚ฌ๋ฅผ ํ•˜๋Š” ๊ฒƒ์„ ๋ณผ ์ˆ˜ ์žˆ์œผ๋ฉฐ ๊ทธ๋“ค์€ ๊ฒ€์‚ฌ ํ…Œ์ŠคํŠธ ํ…Œ์ŠคํŠธ 123์„ ํ™•์ธ
10:23
might tap the mic a little bit. Does that hurt your ears? Sorry
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ํ•˜๊ณ  ๋งˆ์ดํฌ๋ฅผ ์•ฝ๊ฐ„ ํƒญํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๊ฒŒ ๊ท€๋ฅผ ์•„ํ”„๊ฒŒ ํ•˜๋‚˜์š”?
10:26
if you have ear earbuds on and that makes too loud of a sound.
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์ด์–ด๋ฒ„๋“œ๋ฅผ ์ฐฉ์šฉํ•˜์…จ๋Š”๋ฐ ์†Œ๋ฆฌ๊ฐ€ ๋„ˆ๋ฌด ํฌ๋‹ค๋ฉด ์ฃ„์†กํ•ฉ๋‹ˆ๋‹ค.
10:31
But that is called sound check. Let's describe sounds for a
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ํ•˜์ง€๋งŒ ๊ทธ๊ฒƒ์„ ์‚ฌ์šด๋“œ ์ฒดํฌ๋ผ๊ณ  ํ•ฉ๋‹ˆ๋‹ค. ์†Œ๋ฆฌ์— ๋Œ€ํ•ด ์ž ์‹œ ์„ค๋ช…ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค
10:36
little bit. When there is a sound that almost hurts your
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. ๊ท€๊ฐ€ ์•„ํ”Œ ๋ป”ํ•œ ์†Œ๋ฆฌ๊ฐ€ ์žˆ์„ ๋•Œ
10:41
ears you would say it is loud. When an airplane takes off it
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๋‹น์‹ ์€ ๊ทธ๊ฒƒ์ด ํฌ๋‹ค๊ณ  ๋งํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๋น„ํ–‰๊ธฐ๊ฐ€ ์ด๋ฅ™
10:45
is loud. When you go to a rock concert it is loud. When the
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ํ•˜๋ฉด ์‹œ๋„๋Ÿฝ์Šต๋‹ˆ๋‹ค. ๋ก ์ฝ˜์„œํŠธ์— ๊ฐ€๋ฉด ์‹œ๋„๋Ÿฝ์Šต๋‹ˆ๋‹ค. TV์˜
10:51
volume is really really high on your television. We say that
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๋ณผ๋ฅจ์ด ์ •๋ง ๋†’์„ ๋•Œ. ์šฐ๋ฆฌ
10:54
the TV is too loud. Uh when people yell it is loud. So when
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๋Š” TV๊ฐ€ ๋„ˆ๋ฌด ์‹œ๋„๋Ÿฝ๋‹ค๊ณ  ๋งํ•ฉ๋‹ˆ๋‹ค. Uh ์‚ฌ๋žŒ๋“ค์ด ์†Œ๋ฆฌ๋ฅผ ์ง€๋ฅด๋ฉด ์‹œ๋„๋Ÿฝ์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ
10:59
you are loud you are making noises where the volume is just
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์‹œ๋„๋Ÿฌ์šธ ๋•Œ ๋ณผ๋ฅจ์ด ์ •๋ง ๋†’์€ ๊ณณ์—์„œ ์†Œ๋ฆฌ๋ฅผ ๋‚ด๋Š” ๊ฒƒ
11:06
really really high. And then of course the opposite is is
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์ž…๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ๋ฌผ๋ก  ๊ทธ ๋ฐ˜๋Œ€๋Š”
11:10
quiet. When you're quiet you these girls are whispering to
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์กฐ์šฉํ•ฉ๋‹ˆ๋‹ค. ๋‹น์‹ ์ด ์กฐ์šฉํ•  ๋•Œ ์ด ์†Œ๋…€๋“ค์€ ์„œ๋กœ์—๊ฒŒ ์†์‚ญ์ด๋Š” ๊ฒƒ
11:15
each other. So when you are quiet the volume is very very
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์ž…๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ์กฐ์šฉํ•  ๋•Œ ๋ณผ๋ฅจ์ด ๋งค์šฐ
11:20
low. You're talking quietly you're talking softly. There's
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๋‚ฎ์Šต๋‹ˆ๋‹ค. ๋‹น์‹ ์€ ์กฐ์šฉํžˆ ๋งํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ๋‹น์‹ ์€ ๋ถ€๋“œ๋Ÿฝ๊ฒŒ ๋งํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ์˜์–ด
11:24
a few ways to describe it in English. But Certainly if you
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๋กœ ์„ค๋ช…ํ•˜๋Š” ๋ช‡ ๊ฐ€์ง€ ๋ฐฉ๋ฒ•์ด ์žˆ์Šต๋‹ˆ๋‹ค . ํ•˜์ง€๋งŒ ํ™•์‹คํžˆ
11:27
imagine when a cat walks by it's very quiet. If you listen
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๊ณ ์–‘์ด๊ฐ€ ์ง€๋‚˜๊ฐˆ ๋•Œ๋ฅผ ์ƒ์ƒ ํ•œ๋‹ค๋ฉด ๋งค์šฐ ์กฐ์šฉํ•ฉ๋‹ˆ๋‹ค. ์ž˜ ๋“ค์–ด
11:33
closely you can hear its feet. But because its feet are padded
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๋ณด๋ฉด ๋ฐœ์†Œ๋ฆฌ๊ฐ€ ๋“ค๋ฆฐ๋‹ค. ํ•˜์ง€๋งŒ ๋ฐœ์ด ํ‘น์‹ ํ•˜๊ธฐ ๋•Œ๋ฌธ์—
11:37
it's very quiet when a cat walks by. Um when our dog
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๊ณ ์–‘์ด๊ฐ€ ์ง€๋‚˜๊ฐˆ ๋•Œ ๋งค์šฐ ์กฐ์šฉํ•ฉ๋‹ˆ๋‹ค. ์Œ, ์šฐ๋ฆฌ ๊ฐœ
11:41
Walter runs by it's not quiet. It's very loud. He's a big loud
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Walter๊ฐ€ ์ง€๋‚˜๊ฐˆ ๋•Œ ์กฐ์šฉํ•˜์ง€ ์•Š์•„์š”. ๋งค์šฐ ์‹œ๋„๋Ÿฝ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Š” ํฐ ์‹œ๋„๋Ÿฌ์šด
11:45
dog. So quiet and loud are opposites of each other. And
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๊ฐœ์ž…๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ์กฐ์šฉํ•จ๊ณผ ์‹œ๋„๋Ÿฌ์›€์€ ์„œ๋กœ ๋ฐ˜๋Œ€์ž…๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ 
11:52
that's because of what's called pitch. And I'm not going to get
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๊ทธ๊ฒƒ์€ ํ”ผ์น˜๋ผ๊ณ  ๋ถˆ๋ฆฌ๋Š” ๊ฒƒ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค . ์ž์„ธํ•œ ๋‚ด์šฉ์€ ๋‹ค๋ฃจ์ง€ ์•Š๊ฒ 
11:57
into all the details. But because sound travels in waves
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์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์†Œ๋ฆฌ๋Š” ํŒŒ๋™์œผ๋กœ ์ด๋™ํ•˜๊ธฐ
12:01
there's a different frequency. There's a different size of the
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๋•Œ๋ฌธ์— ๋‹ค๋ฅธ ์ฃผํŒŒ์ˆ˜๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ํŒŒ๋„์˜ ํฌ๊ธฐ๊ฐ€ ๋‹ค๋ฆ…๋‹ˆ๋‹ค
12:06
wave. When the wave is longer and has more amplitude again
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. ํŒŒ๋™ ์ด ๋” ๊ธธ๊ณ  ์ง„ํญ์ด ๋” ํด ๋•Œ ๋‹ค์‹œ
12:11
not a science lesson. You have a lower pitched sound. So when
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๊ณผํ•™ ์ˆ˜์—…์ด ์•„๋‹™๋‹ˆ๋‹ค. ๋‚ฎ์€ ์Œ์กฐ์˜ ์†Œ๋ฆฌ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ์ด๋ ‡๊ฒŒ ๋งํ•  ๋•Œ
12:15
I talk like this the waves coming out of my mouth are much
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๋‚ด ์ž…์—์„œ ๋‚˜์˜ค๋Š” ํŒŒ๋™์ด ํ›จ์”ฌ
12:21
longer. And when I talk like this the sound waves Coming out
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๋” ๊ธธ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ๋‚ด๊ฐ€ ์ด๋ ‡๊ฒŒ ๋งํ•  ๋•Œ
12:25
of my mouth are much more like the one that says higher pitch.
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๋‚ด ์ž…์—์„œ ๋‚˜์˜ค๋Š” ์ŒํŒŒ ๋Š” ๋” ๋†’์€ ์Œ์กฐ๋ฅผ ๋งํ•˜๋Š” ๊ฒƒ๊ณผ ํ›จ์”ฌ ๋” ๋น„์Šทํ•ฉ๋‹ˆ๋‹ค.
12:31
So that is what pitch is. It's a change in the an in how the
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์ด๊ฒƒ์ด ๋ฐ”๋กœ ํ”ผ์น˜์ž…๋‹ˆ๋‹ค. ๊ทธ๊ฒƒ์€ ์ŒํŒŒ ๊ฐ€ ์–ด๋–ป๊ฒŒ ๋ณด์ด๋Š”์ง€์— ๋Œ€ํ•œ ๋ณ€ํ™”
12:37
sound wave looks and then our ears interpret that in a
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์ด๋ฉฐ ์šฐ๋ฆฌ์˜ ๊ท€๋Š” ๊ทธ๊ฒƒ์„
12:41
different way. Uh let's see here. So dogs can hear high
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๋‹ค๋ฅธ ๋ฐฉ์‹์œผ๋กœ ํ•ด์„ํ•ฉ๋‹ˆ๋‹ค. ์–ด ์—ฌ๊ธฐ ๋ณด์ž. ๊ทธ๋ž˜์„œ ๊ฐœ๋Š” ๋†’์€
12:48
pitched sounds. There's actually sounds that are so
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์Œ์กฐ์˜ ์†Œ๋ฆฌ๋ฅผ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์‹ค์ œ๋กœ
12:52
high pitch that humans can't hear it. Um but dogs can. So
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์‚ฌ๋žŒ์ด ๋“ค์„ ์ˆ˜ ์—†๋Š” ๋†’์€ ์Œ์กฐ์˜ ์†Œ๋ฆฌ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ ๊ฐœ๋Š” ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ
12:57
sometimes your dog will be looking around because possibly
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๋•Œ๋•Œ๋กœ ๋‹น์‹ ์˜ ๊ฐœ๋Š” ์ธ๊ฐ„์˜ ๊ฐ€์ฒญ ๋ฒ”์œ„๋ฅผ ๋ฒ—์–ด๋‚œ ์†Œ๋ฆฌ๋ฅผ ๋“ค์„ ์ˆ˜ ์žˆ๊ธฐ ๋•Œ๋ฌธ์— ์ฃผ์œ„๋ฅผ ๋‘˜๋Ÿฌ๋ณผ ๊ฒƒ
13:01
they hear a sound that is outside of the range of human
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13:07
hearing. By the way humans can hear from I think 20 to
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์ž…๋‹ˆ๋‹ค. ๊ทธ๊ฑด ๊ทธ๋ ‡๊ณ  ์ธ๊ฐ„์ด ๋“ค์„ ์ˆ˜ ์žˆ๋Š” ์†Œ๋ฆฌ๋Š” 2๋งŒ์—์„œ 2
13:11
20thousand hertz or something like that. 20 hertz to 20, 000
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๋งŒ ํ—ค๋ฅด์ธ  ์ •๋„๋ผ๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค. 20ํ—ค๋ฅด์ธ ์—์„œ 20,000
13:14
hertz. Uh I might be getting the actual description wrong.
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ํ—ค๋ฅด์ธ . ์–ด , ์‹ค์ œ ์„ค๋ช…์ด ์ž˜๋ชป๋˜์—ˆ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
13:18
Someone who's more scientific can contribute that
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๋” ๊ณผํ•™์ ์ธ ์‚ฌ๋žŒ์ด ๊ทธ ์ •๋ณด๋ฅผ ์ œ๊ณตํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค
13:22
information. So we have when we talk about high pitched and low
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. ๊ณ ์Œ๊ณผ ์ €์Œ์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐํ•  ๋•Œ
13:28
pitched sounds. We also sometimes refer to them as bass
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๊ทธ๋ ‡์Šต๋‹ˆ๋‹ค. ์šฐ๋ฆฌ๋Š” ๋˜ํ•œ ๋•Œ๋•Œ๋กœ ๊ทธ๊ฒƒ๋“ค์„ ์ €์Œ
13:32
and trouble. So bass again is something referring to the low
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๊ณผ ๋ฌธ์ œ๋ผ๊ณ  ๋ถ€๋ฆ…๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ์ €์Œ์€ ๋‹ค์‹œ ๋‚ฎ์€
13:37
sounds. Often when you listen to music you might turn up the
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์†Œ๋ฆฌ๋ฅผ ๊ฐ€๋ฆฌํ‚ค๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์ข…์ข… ์Œ์•…์„ ๋“ค์„ ๋•Œ
13:42
bass. Sometimes you'll hear a cargo by that has really large
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๋ฒ ์ด์Šค๋ฅผ ๋†’์ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋•Œ๋กœ๋Š” ์ •๋ง ํฐ ์Šคํ”ผ์ปค๊ฐ€ ์žˆ๋Š” ํ™”๋ฌผ์„ ๋“ค์„
13:46
speakers in it. So it can create really good bass sounds
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์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ์Œ์•…์„ ์—ฐ์ฃผํ•  ๋•Œ ์ •๋ง ์ข‹์€ ๋ฒ ์ด์Šค ์‚ฌ์šด๋“œ๋ฅผ ์ƒ์„ฑํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค
13:51
when it plays music. And that person might turn up the bass.
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. ๊ทธ๋ฆฌ๊ณ  ๊ทธ ์‚ฌ๋žŒ์€ ๋ฒ ์ด์Šค๋ฅผ ๋†’์ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
13:55
Um in or for you to hear it. So when you hear a car go by and
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์Œ, ๋˜๋Š” ๋‹น์‹ ์ด ๊ทธ๊ฒƒ์„ ๋“ฃ๊ณ . ๊ทธ๋ž˜์„œ ์ž๋™์ฐจ๊ฐ€ ์ง€๋‚˜๊ฐ€๋Š” ์†Œ๋ฆฌ๋ฅผ ๋“ฃ๊ณ  ์ž๋™์ฐจ๊ฐ€
13:59
it's like when the car goes by you can really hear the bass in
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์ง€๋‚˜๊ฐˆ ๋•Œ ๋…ธ๋ž˜ ์—์„œ ๋ฒ ์ด์Šค ์†Œ๋ฆฌ๋ฅผ ์‹ค์ œ๋กœ ๋“ค์„ ์ˆ˜ ์žˆ๋Š”
14:04
the song they've probably turned up the knob that says
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๊ฒƒ๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค. ์•„๋งˆ ์ €์Œ ์ด๋ผ๊ณ  ํ‘œ์‹œ๋œ ๋…ธ๋ธŒ๋ฅผ ๋Œ๋ฆฐ
14:08
bass and then treble if you hear a song and you really hear
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๋‹ค์Œ ๋…ธ๋ž˜๋ฅผ ๋“ฃ๊ณ  ์‹ค์ œ๋กœ
14:14
the cymbals or like if you hear all those really high sounds
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์‹ฌ๋ฒŒ์ฆˆ ์†Œ๋ฆฌ๊ฐ€ ๋“ค๋ฆฌ๋ฉด ๊ณ ์Œ์ด ๋ฉ๋‹ˆ๋‹ค. ๋˜๋Š” ์ •๋ง ๋†’์€ ์†Œ๋ฆฌ๊ฐ€ ๋ชจ๋‘ ๋“ค๋ฆฌ๋ฉด ๊ณ ์Œ์ด
14:20
it's possible that they have turned up the treble. So on a
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๋†’์•„์กŒ์„ ๊ฐ€๋Šฅ์„ฑ์ด ์žˆ์Šต๋‹ˆ๋‹ค . ๋”ฐ๋ผ์„œ
14:25
piece of audio equipment on a radio you might have a knob to
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๋ผ๋””์˜ค์˜ ์˜ค๋””์˜ค ์žฅ๋น„
14:29
turn up or turn down the bass or turn up or turn down the
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์—๋Š” ๋ฒ ์ด์Šค ๋ฅผ ๋†’์ด๊ฑฐ๋‚˜ ๋‚ฎ์ถ”๊ฑฐ๋‚˜
14:33
treble. And then sound is measured using something called
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๊ณ ์Œ์„ ๋†’์ด๊ฑฐ๋‚˜ ๋‚ฎ์ถ”๋Š” ๋…ธ๋ธŒ๊ฐ€ ์žˆ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฐ ๋‹ค์Œ ์†Œ๋ฆฌ๋Š” ๋ฐ์‹œ๋ฒจ ์Šค์ผ€์ผ ์ด๋ผ๋Š” ๊ฒƒ์„ ์‚ฌ์šฉํ•˜์—ฌ ์ธก์ •๋ฉ๋‹ˆ๋‹ค
14:39
the decibel scale. We usually say that sound is a certain
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. ์šฐ๋ฆฌ๋Š” ์ผ๋ฐ˜์ ์œผ๋กœ ์†Œ๋ฆฌ๊ฐ€
14:43
amount of decibels. If you look here you'll see that you know a
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์ผ์ •๋Ÿ‰์˜ ๋ฐ์‹œ๋ฒจ์ด๋ผ๊ณ  ๋งํ•ฉ๋‹ˆ๋‹ค. ์—ฌ๊ธฐ๋ฅผ ๋ณด์‹œ๋ฉด
14:48
heavy metal concert has very high there's a lot of decibels
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ํ—ค๋น„๋ฉ”ํƒˆ ์ฝ˜์„œํŠธ์˜ ์†Œ๋ฆฌ๊ฐ€ ๋งค์šฐ ๋†’๋‹ค๋Š” ๊ฒƒ์„ ์•Œ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์†Œ๋ฆฌ์— ๋ฐ์‹œ๋ฒจ์ด ๋งŽ์Šต๋‹ˆ๋‹ค
14:52
in the sound. The sound is very very loud. And it's actually
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. ์†Œ๋ฆฌ๊ฐ€ ๋งค์šฐ ํฝ๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ์‹ค์ œ๋กœ
14:58
can be damaging to your ears. When I worked in construction
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๊ท€์— ์†์ƒ์„ ์ค„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ฑด์„ค ํ˜„์žฅ์—์„œ ์ผํ•  ๋•Œ ๋„ˆ๋ฌด ๋งŽ์€ ๋ฐ์‹œ๋ฒจ์„
15:02
there were certain tools we would use that where we would
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15:06
where hearing protection because they put out too many
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๋‚ด๋Š” ์ฒญ๋ ฅ ๋ณดํ˜ธ ์žฅ์น˜๋ฅผ ์‚ฌ์šฉํ•  ํŠน์ • ๋„๊ตฌ๊ฐ€ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค
15:09
decibels. They were too loud for the human ear. This live
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. ๊ทธ๋“ค์€ ์ธ๊ฐ„์˜ ๊ท€์— ๋„ˆ๋ฌด ์‹œ๋„๋Ÿฌ์› ์Šต๋‹ˆ๋‹ค.
15:15
stream this English lesson is probably more at around
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์ด ์˜์–ด ์ˆ˜์—…์˜ ๋ผ์ด๋ธŒ ์ŠคํŠธ๋ฆผ์€ ์•„๋งˆ๋„
15:18
conversation level. If you look in the orange in the middle on
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๋Œ€ํ™” ์ˆ˜์ค€์— ๋” ๊ฐ€๊นŒ์šธ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์ €์šธ ์ค‘์•™์˜ ์ฃผํ™ฉ์ƒ‰์„ ๋ณด๋ฉด
15:22
the scale. It's at conversation level. So decibel is the unit
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. ๋Œ€ํ™” ์ˆ˜์ค€์ž…๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ๋ฐ์‹œ๋ฒจ์€ ์†Œ๋ฆฌ๊ฐ€
15:28
of measure for measuring how loud sound is. And we also have
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์–ผ๋งˆ๋‚˜ ํฐ์ง€๋ฅผ ์ธก์ •ํ•˜๋Š” ์ธก์ • ๋‹จ์œ„์ž…๋‹ˆ๋‹ค .
15:36
what's called a sound effect. Sometimes I do sound effects.
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์Œํ–ฅ ํšจ๊ณผ๋ผ๋Š” ๊ฒƒ๋„ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ฐ€๋” ์Œํ–ฅํšจ๊ณผ๋ฅผ ๋‚ด๊ธฐ๋„ ํ•ฉ๋‹ˆ๋‹ค.
15:40
Sound effects when you do a sound effect you are recreating
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์Œํ–ฅ ํšจ๊ณผ๋ฅผ ํ•  ๋•Œ ์Œํ–ฅ ํšจ๊ณผ๋Š”
15:45
the sound of something else. A long time ago when they were
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๋‹ค๋ฅธ ์†Œ๋ฆฌ๋ฅผ ์žฌํ˜„ํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์˜ค๋ž˜ ์ „์—
15:49
making movies and if they needed to create the sound of
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๊ทธ๋“ค์ด ์˜ํ™” ๋ฅผ ๋งŒ๋“ค ๋•Œ ๋ง ์†Œ๋ฆฌ๋ฅผ ๋งŒ๋“ค์–ด์•ผ
15:53
horses let me see if I can do it here. I don't have coconuts.
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ํ•œ๋‹ค๋ฉด ์—ฌ๊ธฐ์„œ ํ•  ์ˆ˜ ์žˆ๋Š”์ง€ ๋ณด์ž . ๋‚˜๋Š” ์ฝ”์ฝ”๋„›์ด ์—†๋‹ค.
15:56
Uh they would pretend these are coconuts. And then they would
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์–ด ๊ทธ๋“ค์€ ์ด๊ฒƒ์ด ์ฝ”์ฝ”๋„›์ธ ์ฒ™ ํ•  ๊ฒƒ ์ž…๋‹ˆ๋‹ค. ๊ทธ๋Ÿฐ ๋‹ค์Œ ๊ทธ๋“ค์€
15:59
go like that does not sound like a horse but they would use
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๋ง์ฒ˜๋Ÿผ ๋“ค๋ฆฌ์ง€ ์•Š์ง€๋งŒ
16:06
coconuts or two coconut halves to kind of recreate the sound
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์ฝ”์ฝ”๋„›์ด๋‚˜ ๋‘ ๊ฐœ์˜ ์ฝ”์ฝ”๋„› ๋ฐ˜์ชฝ ์„ ์‚ฌ์šฉํ•˜์—ฌ ๋ง ์†Œ๋ฆฌ๋ฅผ ์žฌํ˜„ํ•ฉ๋‹ˆ๋‹ค
16:11
of a horse. When I was making the sound of a cat purring I'm
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. ๊ณ ์–‘์ด๊ฐ€ ๊ฐ€๋ฅด๋ž‘๊ฑฐ๋ฆฌ๋Š”
16:17
making a sound effect. It's not the original sound. It's just
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์†Œ๋ฆฌ๋ฅผ ๋‚ผ ๋•Œ ์Œํ–ฅ ํšจ๊ณผ๋ฅผ ๋งŒ๋“ค๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ์›๋ž˜ ์†Œ๋ฆฌ๊ฐ€ ์•„๋‹™๋‹ˆ๋‹ค. ๊ฐ™์€
16:22
an attempt to make the same sound again. So sound effects
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์†Œ๋ฆฌ๋ฅผ ๋‹ค์‹œ ๋‚ด๋Š” ์‹œ๋„์ผ ๋ฟ์ž…๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ์Œํ–ฅ ํšจ๊ณผ
16:26
are one of the ways they recreate sounds for movies or
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๋Š” ๊ทธ๋“ค์ด ์˜ํ™”
16:30
for podcasts or for English lessons like this.
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๋‚˜ ํŒŸ์บ์ŠคํŠธ ๋˜๋Š” ์ด์™€ ๊ฐ™์€ ์˜์–ด ์ˆ˜์—…์„ ์œ„ํ•ด ์†Œ๋ฆฌ๋ฅผ ์žฌํ˜„ํ•˜๋Š” ๋ฐฉ๋ฒ• ์ค‘ ํ•˜๋‚˜์ž…๋‹ˆ๋‹ค.
16:37
Mute. So there is a mute button on my mic. I'm not going to
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๋ฌด์Œ. ๊ทธ๋ž˜์„œ ์ œ ๋งˆ์ดํฌ์— ์Œ์†Œ๊ฑฐ ๋ฒ„ํŠผ์ด ์žˆ์Šต๋‹ˆ๋‹ค. ๋‚˜๋Š” ๊ทธ๊ฒƒ์„ ๋ฐ€์ง€ ์•Š์„ ๊ฒƒ
16:41
push it. But a mute button is a button you push to stop all
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์ž…๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์Œ์†Œ๊ฑฐ ๋ฒ„ํŠผ์€ ๋ชจ๋“  ์†Œ๋ฆฌ๋ฅผ ๋ฉˆ์ถ”๊ธฐ ์œ„ํ•ด ๋ˆ„๋ฅด๋Š” ๋ฒ„ํŠผ
16:46
sound. When I'm watching TV my remote control for my TV has a
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์ž…๋‹ˆ๋‹ค. TV๋ฅผ ๋ณผ ๋•Œ ๋‚ด TV ๋ฆฌ๋ชจ์ปจ์—๋Š”
16:53
mute button. If the phone rings I'll hit the mute button. Um
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์Œ์†Œ๊ฑฐ ๋ฒ„ํŠผ์ด ์žˆ์Šต๋‹ˆ๋‹ค. ์ „ํ™”๋ฒจ์ด ์šธ๋ฆฌ๋ฉด ์Œ์†Œ๊ฑฐ ๋ฒ„ํŠผ์„ ๋ˆ„๋ฅด๊ฒ ์Šต๋‹ˆ๋‹ค. ์Œ
16:57
and then immediately the television will stop making
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, ๊ทธ๋Ÿฌ๋ฉด ์ฆ‰์‹œ ํ…”๋ ˆ๋น„์ „ ์†Œ๋ฆฌ๊ฐ€ ๋ฉˆ์ถฅ๋‹ˆ๋‹ค
17:01
sound. When you are watching a YouTube video if you click on
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. ์œ ํŠœ๋ธŒ ์˜์ƒ์„ ๋ณผ ๋•Œ
17:05
the little speaker at the bottom you will mute the video.
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ํ•˜๋‹จ์˜ ์ž‘์€ ์Šคํ”ผ์ปค๋ฅผ ํด๋ฆญ ํ•˜๋ฉด ์˜์ƒ์ด ์Œ์†Œ๊ฑฐ ๋ฉ๋‹ˆ๋‹ค.
17:08
The video will keep Playing but it will stop making sound. So
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๋™์˜์ƒ์€ ๊ณ„์† ์žฌ์ƒ๋˜์ง€๋งŒ ์†Œ๋ฆฌ๋Š” ๋ฉˆ์ถฅ๋‹ˆ๋‹ค.
17:12
the mute button is what you use to do that. To stop something
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์Œ์†Œ๊ฑฐ ๋ฒ„ํŠผ์€ ๊ทธ๋ ‡๊ฒŒ ํ•˜๋Š” ๋ฐ ์‚ฌ์šฉํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
17:17
from making sound. Or when you talk about a microphone to stop
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์†Œ๋ฆฌ๊ฐ€ ๋‚˜์ง€ ์•Š๊ฒŒ ํ•˜๋‹ค. ๋˜๋Š” ๋งˆ์ดํฌ๊ฐ€ ์‚ฌ์šฉ์ž์˜ ๋ง์„ ๋“ฃ์ง€ ๋ชปํ•˜๋„๋ก ๋งˆ์ดํฌ์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐ
17:21
it from hearing you or listening to you. Um sometimes
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ํ•  ๋•Œ. ์Œ, ๋•Œ๋•Œ๋กœ
17:25
when you are in a Zoom meeting it's polite if there are lots
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Zoom ํšŒ์˜์— ์ฐธ์„ํ•  ๋•Œ
17:28
of people in an online meeting to mute your microphone so
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์˜จ๋ผ์ธ ํšŒ์˜์— ๋งŽ์€ ์‚ฌ๋žŒ์ด ์žˆ๋Š” ๊ฒฝ์šฐ ๋งˆ์ดํฌ๋ฅผ ์Œ์†Œ๊ฑฐํ•˜์—ฌ
17:33
people don't hear what's happening around you or in your
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์‚ฌ๋žŒ๋“ค์ด ์ฃผ๋ณ€์ด๋‚˜ ์ง‘์—์„œ ์ผ์–ด๋‚˜๋Š” ์ผ์„ ๋“ฃ์ง€ ๋ชปํ•˜๊ฒŒ ํ•˜๋Š” ๊ฒƒ์ด ์˜ˆ์˜
17:37
house. Sound panel. A sound panel it can actually refer to
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์ž…๋‹ˆ๋‹ค. ์‚ฌ์šด๋“œ ํŒจ๋„. ์‚ฌ์šด๋“œ ํŒจ๋„์€ ์‹ค์ œ๋กœ ๋‘ ๊ฐ€์ง€๋ฅผ ์ฐธ์กฐํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค
17:42
two things. But normally a sound panel refers to foam
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. ๊ทธ๋Ÿฌ๋‚˜ ์ผ๋ฐ˜์ ์œผ๋กœ ์‚ฌ์šด๋“œ ํŒจ๋„์€ ์†Œ๋ฆฌ
17:48
panels we put on the wall to dampen the sound and to reduce
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๋ฅผ ์ค„์ด๊ณ  ์šธ๋ฆผ์„ ์ค„์ด๊ธฐ ์œ„ํ•ด ๋ฒฝ์— ์„ค์น˜ํ•˜๋Š” ํผ ํŒจ๋„์„ ๋งํ•ฉ๋‹ˆ๋‹ค
17:55
echo. Echo by the way is when you're like hey hey hey. Like
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. ๊ทธ๊ฑด ๊ทธ๋ ‡๊ณ  Echo๋Š” ๋‹น์‹ ์ด hey hey hey ๊ฐ™์„ ๋•Œ์ž…๋‹ˆ๋‹ค.
18:00
if you're in a big room and you yell and your voice comes back
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ํฐ ๋ฐฉ์— ์žˆ์„ ๋•Œ ์†Œ๋ฆฌ๋ฅผ ์ง€๋ฅด๊ณ  ๋ชฉ์†Œ๋ฆฌ๊ฐ€ ๋‹ค์‹œ
18:05
to you that's an echo. It's like hey hey. So if I was in a
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๋Œ์•„์˜ค๋ฉด ๋ฉ”์•„๋ฆฌ์ž…๋‹ˆ๋‹ค. ์ด๋ด ์ด๋ด. ๊ทธ๋ž˜์„œ ๋‚ด๊ฐ€
18:09
cave you might hear an echo. Sound panels are used to stop
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๋™๊ตด์— ์žˆ๋‹ค๋ฉด ๋ฉ”์•„๋ฆฌ๋ฅผ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์‚ฌ์šด๋“œ ํŒจ๋„์€ ์‚ฌ์šด๋“œ๊ฐ€ ๋ฐ˜์‚ฌ๋˜๋Š” ๊ฒƒ์„ ๋ฐฉ์ง€ํ•˜๋Š” ๋ฐ ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค
18:14
sound from reflecting. It absorbs the sound or deadens
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. ๊ทธ๊ฒƒ์€ ์†Œ๋ฆฌ๋ฅผ ํก์ˆ˜ํ•˜๊ฑฐ๋‚˜ ์†Œ๋ฆฌ๋ฅผ ์•ฝํ™”
18:18
the sound. Um but a sound panel can also be the board with all
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์‹œํ‚ต๋‹ˆ๋‹ค. ์Œ, ํ•˜์ง€๋งŒ ์‚ฌ์šด๋“œ ํŒจ๋„ ์€ ๋…น์Œ ์ŠคํŠœ๋””์˜ค์—์„œ ์‚ฌ์šฉํ•˜๋Š” ๋ชจ๋“  ๋…ธ๋ธŒ๊ฐ€ ์žˆ๋Š” ๋ณด๋“œ๊ฐ€ ๋  ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค
18:23
the knobs that they use at a recording studio. We might call
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.
18:27
that a sound panel as well. Um Volume. So this knob goes to
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์‚ฌ์šด๋“œ ํŒจ๋„์ด๋ผ๊ณ ๋„ ๋ถ€๋ฅผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์Œ ๋ณผ๋ฅจ. ์ด ๋…ธ๋ธŒ๋Š” 11๋กœ ์ด๋™ํ•ฉ๋‹ˆ๋‹ค
18:37
eleven. This is a secret joke. If you've seen a certain movie
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. ์ด๊ฒƒ์€ ๋น„๋ฐ€์Šค๋Ÿฌ์šด ๋†๋‹ด์ž…๋‹ˆ๋‹ค. ํŠน์ • ์˜ํ™”๋ฅผ ๋ณธ ์ ์ด ์žˆ๋‹ค๋ฉด ์ฐธ์กฐ๋ฅผ
18:40
you'll understand the reference. But volume refers to
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์ดํ•ดํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค . ๊ทธ๋Ÿฌ๋‚˜ ๋ณผ๋ฅจ์€
18:44
normally how loud sound is. Specifically when you're using
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์ผ๋ฐ˜์ ์œผ๋กœ ์†Œ๋ฆฌ๊ฐ€ ์–ผ๋งˆ๋‚˜ ํฐ์ง€๋ฅผ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. ํŠนํžˆ
18:50
equipment. When you're using a radio or a TV or when you're
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์žฅ๋น„๋ฅผ ์‚ฌ์šฉํ•  ๋•Œ. ๋ผ๋””์˜ค๋‚˜ TV๋ฅผ ์‚ฌ์šฉํ•˜๊ฑฐ๋‚˜
18:53
listening to music with your your phone and your AirPods we
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ํœด๋Œ€ํฐ๊ณผ AirPods๋กœ ์Œ์•…์„ ๋“ค์„ ๋•Œ
18:59
would have volume. You can turn the volume up. You can turn the
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๋ณผ๋ฅจ์ด ์ƒ๊น๋‹ˆ๋‹ค. ๋ณผ๋ฅจ์„ ๋†’์ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
19:04
volume down. So when I'm watching TV sometimes I turn it
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๋ณผ๋ฅจ์„ ๋‚ฎ์ถœ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ TV๋ฅผ ๋ณผ ๋•Œ ๊ฐ€๋” ๋ณผ๋ฅจ์„
19:08
up. If I can't hear it. If it's too quiet I'll turn it up. And
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๋†’์ž…๋‹ˆ๋‹ค. ๋‚ด๊ฐ€ ๋ชป ์•Œ์•„๋“ฃ๋Š”๋‹ค๋ฉด. ๋„ˆ๋ฌด ์กฐ์šฉํ•˜๋ฉด ๋ณผ๋ฅจ์„ ๋†’์ด๊ฒ ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ 
19:12
if it's too loud I will turn it down. So once again the plus
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๋„ˆ๋ฌด ์‹œ๋„๋Ÿฌ์šฐ๋ฉด ๋Œ๊ฒŒ์š” . ๋‹ค์‹œ ํ•œ ๋ฒˆ ๋ฆฌ๋ชจ์ฝ˜์˜ ๋”ํ•˜๊ธฐ
19:16
sign on the remote control. Turn it up. Make it louder. Um
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๊ธฐํ˜ธ์ž…๋‹ˆ๋‹ค. ๋ณผ๋ฅจ์„ ๋†’์ด์‹ญ์‹œ์˜ค. ์†Œ๋ฆฌ๋ฅผ ํฌ๊ฒŒ ํ•˜์‹ญ์‹œ์˜ค. ์Œ
19:20
turn it down. Make it quieter. So sometimes when I am watching
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, ๊ฑฐ์ ˆํ•ด. ๋” ์กฐ์šฉํ•˜๊ฒŒ ๋งŒ๋“œ์‹ญ์‹œ์˜ค. ๊ทธ๋ž˜์„œ ๊ฐ€๋” ๋ฌด์–ธ๊ฐ€๋ฅผ ๋ณผ ๋•Œ ๋ณผ๋ฅจ์„ ๋†’์—ฌ์•ผ
19:24
something I have to turn it up. And Jen sometimes says it's too
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ํ•ฉ๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  Jen์€ ๋•Œ๋•Œ๋กœ ๊ทธ๊ฒƒ์ด ๋„ˆ๋ฌด
19:29
loud. Um by the way this is from I think the movie Spinal
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์‹œ๋„๋Ÿฝ๋‹ค๊ณ  ๋งํ•ฉ๋‹ˆ๋‹ค. ์Œ ๊ทธ๊ฑด ๊ทธ๋ ‡๊ณ  ์ด๊ฒƒ์€ ์˜ํ™” Spinal Tap์—์„œ ๋‚˜์˜จ ๊ฒƒ ๊ฐ™์•„์š”
19:34
Tap. He has an amplify for his guitar. And he thinks it's
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. ๊ทธ๋Š” ๊ธฐํƒ€์šฉ ์•ฐํ”„๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ๊ทธ๋Š”
19:38
louder because the knob instead of going to ten goes to eleven.
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์†์žก์ด ๊ฐ€ 10์ด ์•„๋‹Œ 11๋กœ ๊ฐ€๊ธฐ ๋•Œ๋ฌธ์— ๋” ํฌ๋‹ค๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.
19:42
It goes one more. Muffled. Sometimes sound can be muffled.
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ํ•œ ๋ฒˆ ๋” ๊ฐ‘๋‹ˆ๋‹ค. ๋จธํ”Œ๋Ÿฌ. ๋•Œ๋•Œ๋กœ ์†Œ๋ฆฌ๊ฐ€ ์ž˜ ๋“ค๋ฆฌ์ง€ ์•Š์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
19:49
Recently we all wore masks a lot. Uh right now we wear masks
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์ตœ๊ทผ์— ์šฐ๋ฆฌ๋Š” ๋ชจ๋‘ ๋งˆ์Šคํฌ๋ฅผ ๋งŽ์ด ์ฐฉ์šฉํ–ˆ์Šต๋‹ˆ๋‹ค . ์–ด ์ง€๊ธˆ ์šฐ๋ฆฌ
19:54
sometimes in Canada. But last year I had to teach wearing a
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๋Š” ์บ๋‚˜๋‹ค์—์„œ ๋•Œ๋•Œ๋กœ ๋งˆ์Šคํฌ๋ฅผ ์ฐฉ์šฉํ•ฉ๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ ์ž‘๋…„
20:00
mask because of COVID. And so my voice was muffled. Um I
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์—๋Š” COVID ๋•Œ๋ฌธ์— ๋งˆ์Šคํฌ๋ฅผ ์“ฐ๊ณ  ๊ฐ€๋ฅด์ณค์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ๋‚ด ๋ชฉ์†Œ๋ฆฌ๊ฐ€ ๋ญ‰๊ฐœ์กŒ๋‹ค. ์Œ
20:04
don't have a mask here. Oh, I do have a mask here. What I
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์—ฌ๊ธฐ ๋งˆ์Šคํฌ๊ฐ€ ์—†์–ด์š”. ์•„, ์—ฌ๊ธฐ ๊ฐ€๋ฉด ์žˆ์–ด์š”.
20:09
noticed is when I wore a mask I noticed that my voice sounded a
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๋‚ด๊ฐ€ ์•Œ์•„์ฐจ๋ฆฐ ๊ฒƒ์€ ๋งˆ์Šคํฌ๋ฅผ ์ผ์„ ๋•Œ ๋‚ด ๋ชฉ์†Œ๋ฆฌ๊ฐ€ ์กฐ๊ธˆ ๋‹ค๋ฅด๊ฒŒ ๋“ค๋ ธ๋‹ค๋Š” ๊ฒƒ
20:14
little bit different. It was muffled. When your voice is
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์ž…๋‹ˆ๋‹ค. ์Œ์†Œ๊ฑฐ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ๋ชฉ์†Œ๋ฆฌ๊ฐ€
20:18
muffled it's it's harder to understand what someone's
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์ž‘์•„์ง€๋ฉด ๋‹ค๋ฅธ ์‚ฌ๋žŒ์˜ ๋ง์„ ์ดํ•ดํ•˜๊ธฐ๊ฐ€ ๋” ์–ด๋ ต์Šต๋‹ˆ๋‹ค
20:23
saying. Here I'll give you a better example. If I talk like
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. ์—ฌ๊ธฐ์„œ ๋” ๋‚˜์€ ์˜ˆ๋ฅผ ๋“ค์–ด๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค. ์ด๋ ‡๊ฒŒ ์–˜๊ธฐ
20:26
this my voice is kind of muffled. So you can hear the
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ํ•˜๋ฉด ๋ชฉ์†Œ๋ฆฌ๊ฐ€ ์ข€ ๋ญ‰๊ฐœ์ ธ์š”. ๊ทธ๋ž˜์„œ
20:29
sound doesn't come out clearly. I didn't like I liked wearing a
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์†Œ๋ฆฌ๊ฐ€ ์„ ๋ช…ํ•˜๊ฒŒ ๋‚˜์˜ค์ง€ ์•Š๋Š” ๊ฒƒ์„ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
20:36
mask because it protected me. But I didn't like wearing a
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๋งˆ์Šคํฌ๊ฐ€ ๋‚˜๋ฅผ ๋ณดํ˜ธํ•˜๊ธฐ ๋•Œ๋ฌธ์— ๋งˆ์Šคํฌ๋ฅผ ์“ฐ๋Š” ๊ฒƒ์„ ์ข‹์•„ํ•˜์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ
20:40
mask because it was hard sometimes for my students to
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๊ฐ€๋” ํ•™์ƒ๋“ค์ด
20:44
understand me and I had to talk louder and I would keep getting
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๋‚ด ๋ง์„ ์ดํ•ดํ•˜๊ธฐ ํž˜๋“ค๊ณ  ๋” ํฌ๊ฒŒ ๋งํ•ด์•ผ ํ•˜๊ณ  ๋ชฉ์ด ๊ณ„์† ์•„ํ”„๊ธฐ ๋•Œ๋ฌธ์— ๋งˆ์Šคํฌ๋ฅผ ์“ฐ๋Š” ๊ฒƒ์ด ๋งˆ์Œ์— ๋“ค์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค
20:48
a sore throat. But yes when your voice is muffled it sounds
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. ํ•˜์ง€๋งŒ ๋„ค, ๋ชฉ์†Œ๋ฆฌ๊ฐ€ ์•ฝํ•ด์ง€๋ฉด ์ด๋ ‡๊ฒŒ ๋“ค๋ฆฝ๋‹ˆ๋‹ค
20:52
like this. It's just hard to hear exactly what the person is
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. ๊ทธ ์‚ฌ๋žŒ์ด ๋งํ•˜๋Š” ๊ฒƒ์„ ์ •ํ™•ํžˆ ๋“ฃ๊ธฐ๊ฐ€ ์–ด๋ ต์Šต๋‹ˆ๋‹ค
20:57
saying. So we talked about this earlier when someone has
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. ๊ทธ๋ž˜์„œ ์šฐ๋ฆฌ๋Š” ์ด์ „์— ๋ˆ„๊ตฐ๊ฐ€๊ฐ€
21:04
troubled hearing. We say that they are experiencing hearing
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์ฒญ๋ ฅ์— ๋ฌธ์ œ๊ฐ€ ์žˆ์„ ๋•Œ ์ด์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐํ–ˆ์Šต๋‹ˆ๋‹ค. ์šฐ๋ฆฌ๋Š” ๊ทธ๋“ค์ด ์ฒญ๋ ฅ
21:07
loss. Or that they have hearing loss. As people get oh they
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์†์‹ค์„ ๊ฒฝํ—˜ํ•˜๊ณ  ์žˆ๋‹ค๊ณ  ๋งํ•ฉ๋‹ˆ๋‹ค. ๋˜๋Š” ์ฒญ๋ ฅ ์†์‹ค์ด ์žˆ์Šต๋‹ˆ๋‹ค. ์‚ฌ๋žŒ๋“ค์ด ์˜ค๋ฅผ์ˆ˜๋ก
21:12
sometimes have hearing loss. They can't hear things as well
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๋•Œ๋•Œ๋กœ ์ฒญ๋ ฅ ์†์‹ค์ด ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋“ค์€ ์˜ˆ์ „์ฒ˜๋Ÿผ ์‚ฌ๋ฌผ์„ ๋“ค์„ ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค
21:16
as they used to. When you're young and your ears work really
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. ์ Š๊ณ  ๊ท€๊ฐ€ ์ •๋ง
21:20
well you could hear a lot of things. But as you get older
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์ž˜ ์ž‘๋™ํ•˜๋ฉด ๋งŽ์€ ๊ฒƒ์„ ๋“ค์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ๋‚˜์ด๊ฐ€
21:24
and sometimes for other reasons you start to experience hearing
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๋“ค๋ฉด์„œ ๋•Œ๋กœ๋Š” ๋‹ค๋ฅธ ์ด์œ ๋กœ ์ฒญ๋ ฅ ์ƒ์‹ค์„ ๊ฒฝํ—˜ํ•˜๊ธฐ ์‹œ์ž‘ํ•ฉ๋‹ˆ๋‹ค
21:28
loss. You start to have trouble hearing things properly. And
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. ์ œ๋Œ€๋กœ ๋“ฃ๋Š” ๋ฐ ์–ด๋ ค์›€์„ ๊ฒช๊ธฐ ์‹œ์ž‘ํ•ฉ๋‹ˆ๋‹ค .
21:33
sometimes you need to wear a hearing aid. A hearing aid is a
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๋•Œ๋กœ๋Š” ๋ณด์ฒญ๊ธฐ๋ฅผ ์ฐฉ์šฉํ•ด์•ผ ํ•  ๋•Œ๋„ ์žˆ์Šต๋‹ˆ๋‹ค . ๋ณด์ฒญ๊ธฐ๋Š” ์†Œ๋ฆฌ๋ฅผ ์ฆํญํ•˜๊ธฐ ์œ„ํ•ด ๊ท€์— ์ฐฉ์šฉํ•˜๋Š” ์žฅ์น˜๋กœ, ๋‚œ์ฒญ์ด ์žˆ๋Š”
21:37
device that people wear in their ear to amplify the sound
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21:44
and that helps them hear even though they have some hearing
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๊ฒฝ์šฐ์—๋„ ๋“ค์„ ์ˆ˜ ์žˆ๋„๋ก ๋„์™€์ค๋‹ˆ๋‹ค
21:48
loss. By the way this is an older style hearing aid. I
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. ๊ทธ๊ฑด ๊ทธ๋ ‡๊ณ  ์ด๊ฒƒ์€ ์ด์ „ ์Šคํƒ€์ผ์˜ ๋ณด์ฒญ๊ธฐ์ž…๋‹ˆ๋‹ค. ์ž˜
21:52
chose this picture so that you could see it really well. But
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๋ณด์ด๋„๋ก ์ด ์‚ฌ์ง„์„ ์„ ํƒํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜
21:56
newer hearing aids are actually a lot more discrete. They're
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์ƒˆ๋กœ์šด ๋ณด์ฒญ๊ธฐ๋Š” ์‹ค์ œ๋กœ ํ›จ์”ฌ ๋” ๋ถ„๋ฆฌ๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค. ๋ณด๊ธฐ๊ฐ€
22:01
harder to see. My friend has a hearing aid and it's very small
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๋” ์–ด๋ ต์Šต๋‹ˆ๋‹ค. ๋‚ด ์นœ๊ตฌ๋Š” ๋ณด์ฒญ๊ธฐ๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋Š”๋ฐ
22:06
behind his ear and there's just a small little wire that goes
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๊ท€ ๋’ค์—๋Š” ์•„์ฃผ ์ž‘๊ณ  ์กฐ๊ทธ๋งˆํ•œ ์™€์ด์–ด๋งŒ ๋“ค์–ด
22:09
in. So you can hardly tell that he wearing a hearing aid. And
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์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ ๊ทธ๊ฐ€ ๋ณด์ฒญ๊ธฐ๋ฅผ ์ฐฉ์šฉํ•˜๊ณ  ์žˆ๋‹ค๋Š” ๊ฒƒ์„ ๊ฑฐ์˜ ์•Œ ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.
22:15
then of course we talked about when you completely lose the
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๊ทธ๋ฆฌ๊ณ  ๋ฌผ๋ก  ๊ท€๋จธ๊ฑฐ๋ฆฌ๋กœ ๊ฐ„์ฃผ๋˜๋Š” ๊ฒƒ์„ ๋“ค์„ ์ˆ˜ ์žˆ๋Š” ๋Šฅ๋ ฅ์„ ์™„์ „ํžˆ ์ƒ์‹คํ•˜๋Š” ๊ฒฝ์šฐ์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐํ–ˆ์Šต๋‹ˆ๋‹ค
22:19
ability to hear you are considered deaf. Deaf is the
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. ์ฒญ๊ฐ ์žฅ์• ์ธ์€ ๋“ค์„ ์ˆ˜ ์—†๋Š” ์‚ฌ๋žŒ
22:23
term we use to talk about someone who can't hear. Um so I
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์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐํ•  ๋•Œ ์‚ฌ์šฉํ•˜๋Š” ์šฉ์–ด ์ž…๋‹ˆ๋‹ค. ์Œ ๊ทธ๋ž˜์„œ ์ •ํ™•ํ•œ ์šฉ์–ด๋ฅผ ์‚ฌ์šฉํ•˜๊ณ 
22:27
did some research on this because I wanted to use the
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์‹ถ์—ˆ๊ธฐ ๋•Œ๋ฌธ์— ์ด๊ฒƒ์— ๋Œ€ํ•ด ์กฐ์‚ฌ๋ฅผ ํ–ˆ์Šต๋‹ˆ๋‹ค
22:30
correct terms. There are ways to refer to people who have
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. ์ ์ ˆํ•˜์ง€ ์•Š์€
22:35
trouble doing certain things that are not appropriate. But
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ํŠน์ • ์ผ์„ ํ•˜๋Š” ๋ฐ ์–ด๋ ค์›€์„ ๊ฒช๋Š” ์‚ฌ๋žŒ๋“ค์„ ์ง€์นญํ•˜๋Š” ๋ฐฉ๋ฒ•์ด ์žˆ์Šต๋‹ˆ๋‹ค . ๊ทธ๋Ÿฌ๋‚˜
22:38
my understanding is that describing someone as having
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๋‚ด ์ดํ•ด๋Š” ๋ˆ„๊ตฐ๊ฐ€๋ฅผ
22:42
hearing loss is the acceptable way and that you can describe
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์ฒญ๋ ฅ ์†์‹ค์ด ์žˆ๋‹ค๊ณ  ์„ค๋ช…ํ•˜๋Š” ๊ฒƒ์ด ํ—ˆ์šฉ๋˜๋Š” ๋ฐฉ๋ฒ•์ด๋ฉฐ ๋ˆ„๊ตฐ๊ฐ€๋ฅผ ๋“ค์„ ์ˆ˜ ์—†๋Š” ๊ฒฝ์šฐ ๊ท€๋จธ๊ฑฐ๋ฆฌ๋ผ๊ณ  ์„ค๋ช…ํ•  ์ˆ˜ ์žˆ๋‹ค๋Š” ๊ฒƒ
22:46
someone as being deaf if they cannot hear. So when you are
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์ž…๋‹ˆ๋‹ค. ๊ทธ๋ž˜์„œ
22:50
deaf you are unable to hear. Or you at least have significant
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๊ท€๋จธ๊ฑฐ๋ฆฌ๊ฐ€ ๋˜๋ฉด ๋“ค์„ ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค. ๋˜๋Š” ์ ์–ด๋„ ์ƒ๋‹นํ•œ
22:56
hearing loss as well. And then there's something called
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์ฒญ๋ ฅ ์†์‹ค๋„ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ์ดˆ์ŒํŒŒ๋ผ๋Š” ๊ฒƒ์ด
23:00
ultrasound. This is a cool one because there are sounds that
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์žˆ์Šต๋‹ˆ๋‹ค.
23:05
are so high pitched we can't hear them. But dogs can hear
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์šฐ๋ฆฌ๊ฐ€ ๋“ค์„ ์ˆ˜ ์—†์„ ์ •๋„๋กœ ๋†’์€ ์Œ์กฐ์˜ ์†Œ๋ฆฌ๊ฐ€ ์žˆ๊ธฐ ๋•Œ๋ฌธ์— ์ด๊ฒƒ์€ ๋ฉ‹์ง„ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ๊ฐœ๋Š” ๋“ค์„
23:12
but we can also use them to do things like we can see a baby
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์ˆ˜ ์žˆ์ง€๋งŒ ๋‚ด๊ฐ€ ์‹ฌ์žฅ ๋ฌธ์ œ๊ฐ€ ์žˆ์„ ๋•Œ ์ดˆ์ŒํŒŒ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์–ด๋จธ๋‹ˆ์˜ ์ž๊ถ ์•ˆ์— ์žˆ๋Š” ์•„๊ธฐ๋ฅผ ๋ณผ ์ˆ˜ ์žˆ๋Š” ๊ฒƒ๊ณผ ๊ฐ™์€ ์ผ์„ ํ•˜๋Š” ๋ฐ ๊ฐœ๋ฅผ ์‚ฌ์šฉํ•  ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค.
23:17
inside of a mother's womb using ultrasound when I was having
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23:22
heart problems they would use ultrasound to look at my heart.
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๊ทธ๋“ค์€ ์ดˆ์ŒํŒŒ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๋‚ด ์‹ฌ์žฅ์„ ๋ด…๋‹ˆ๋‹ค.
23:27
They would send really high pitch sound waves in and I'm
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๊ทธ๋“ค์€ ๋งค์šฐ ๋†’์€ ํ”ผ์น˜์˜ ์ŒํŒŒ๋ฅผ ๋ณด๋‚ผ ๊ฒƒ์ด๊ณ 
23:31
sure they reflect or bounce off or something magical happens
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๋‚˜๋Š” ๊ทธ๋“ค์ด ๋ฐ˜์‚ฌํ•˜๊ฑฐ๋‚˜ ๋ฐ˜์‚ฌ ํ•˜๊ฑฐ๋‚˜ ๋งˆ๋ฒ• ๊ฐ™์€ ์ผ์ด ์ผ์–ด๋‚˜๊ณ  ์ŒํŒŒ์—์„œ
23:35
and they can create an image from the sound waves. So
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์ด๋ฏธ์ง€๋ฅผ ๋งŒ๋“ค ์ˆ˜ ์žˆ๋‹ค๊ณ  ํ™•์‹ ํ•ฉ๋‹ˆ๋‹ค . ๊ทธ๋ž˜์„œ
23:39
ultrasound is a very cool way to to C. Isn't that
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์ดˆ์ŒํŒŒ๋Š” C๋กœ ๊ฐ€๋Š” ์•„์ฃผ ๋ฉ‹์ง„ ๋ฐฉ๋ฒ• ์ž…๋‹ˆ๋‹ค.
23:45
interesting? We use sound to C.
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ํฅ๋ฏธ๋กญ์ง€ ์•Š๋‚˜์š”? ์†Œ๋ฆฌ๋ฅผ C์— ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค.
์ด ์›น์‚ฌ์ดํŠธ ์ •๋ณด

์ด ์‚ฌ์ดํŠธ๋Š” ์˜์–ด ํ•™์Šต์— ์œ ์šฉํ•œ YouTube ๋™์˜์ƒ์„ ์†Œ๊ฐœํ•ฉ๋‹ˆ๋‹ค. ์ „ ์„ธ๊ณ„ ์ตœ๊ณ ์˜ ์„ ์ƒ๋‹˜๋“ค์ด ๊ฐ€๋ฅด์น˜๋Š” ์˜์–ด ์ˆ˜์—…์„ ๋ณด๊ฒŒ ๋  ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๊ฐ ๋™์˜์ƒ ํŽ˜์ด์ง€์— ํ‘œ์‹œ๋˜๋Š” ์˜์–ด ์ž๋ง‰์„ ๋”๋ธ” ํด๋ฆญํ•˜๋ฉด ๊ทธ๊ณณ์—์„œ ๋™์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค. ๋น„๋””์˜ค ์žฌ์ƒ์— ๋งž์ถฐ ์ž๋ง‰์ด ์Šคํฌ๋กค๋ฉ๋‹ˆ๋‹ค. ์˜๊ฒฌ์ด๋‚˜ ์š”์ฒญ์ด ์žˆ๋Š” ๊ฒฝ์šฐ ์ด ๋ฌธ์˜ ์–‘์‹์„ ์‚ฌ์šฉํ•˜์—ฌ ๋ฌธ์˜ํ•˜์‹ญ์‹œ์˜ค.

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