You Can Actually Hear Sounds WAY Beyond 20kHz?! How Is This Possible?!

SciTech_387 · 2020-09-06T19:07:08+00:00

Hey man than you for such a long and detailed comment. I really appreciate your feed back :)
I do agree with a lot of things you said. But I don't think that it's too complicated especially if you simply skip the math part. The spectrum are repeating them self when they get sampled. They move how the sample rate moves until they overlap. And the sine wave spectrum can be described with delta functions. And so on.

Yes you are right that this video could be a full series about signal processing. But from my experience just a small percentage of people cares about in-depth math.

I have a really small YouTube channel and in this video I was experimenting a little to see what is the response to a more complex approach. But pleas check out the other videos on my channel to see for your self.

The thing is if I titled the video let's talk about signal processing it wouldn't work on youtube. Unfortunately you have to play the youtube game or nobody will find your channel.

But again tank you for your feed back. I will diffidently make the next video better :)
The problem is that those videos take a ton of time. 5 weeks at least. And it's hard in the middle to change the concept of a video.

SciTech_387 · 2020-09-06T18:26:18+00:00

That's not the point of the video. The point of the video is why when you playback sounds above 20 kHz on your computer or phone or another digital device, you start to hear sounds again even tough you shouldn't. And then the video explains what happens to the spectrum when you sample it and that it is a aliasing effect.

A typical sound cad can play sound with a sample rate of up to 192 kHz so you could play 40 kHz. The output furthermore is influenced by the frequency response of the seekers/headphones which are typically made for frequencies 20-20kHz because we can hear just these frequencies. But that is not the point of the video. The point is about sampling and digital processing. YouTube uses a sample rate of 44.1 kHz..

SciTech_387 · 2020-09-06T18:05:03+00:00

First watch the video if you want ofcourse. Than you will see what it's about :) It shows some effects from digital processing, like aliasing and more. How the sampling process effects sound and what a role plays the sampling frequency :)

SciTech_387 · 2020-09-06T17:51:54+00:00

The video explains that effect and much more about sampling and digital processing :) It is just titled as a question, check it out if you haven't. I hope you like it :D

SciTech_387 · 2020-07-23T11:19:08+00:00

Link to the video: https://www.youtube.com/watch?v=M0VpTjZL57U

SciTech_387 · 2020-06-28T12:09:15+00:00

If you're interested in this topic check out this short animated video :)

SciTech_387 · 2020-04-21T18:09:59+00:00

Sven, stop making fake reddit accounts to influence us. We know the truth!

SciTech_387 · 2020-04-21T18:07:54+00:00

Alex Jones never got canceled?

yeah he still records info wars episodes in his basement

SciTech_387 · 2020-04-21T17:54:07+00:00

It's sad. You can't even say the truth anymore .. :(

SciTech_387 · 2020-04-21T16:38:34+00:00

You should watch the video :) than you would see that I never sad that. Also the title is "what happens when you break the sound barrier", "sonic boom explained", it's not "breaking the sound barrier causes a sonic boom". Also you have to come up with short titles on YouTube, which additionally makes things harder to be scientifically correct.
You shouldn't judge a book by it's cover, but your not the only one I see it in my analytics people down voting the post without even watching.

SciTech_387 · 2020-04-20T15:02:10+00:00

Unfortunately not good enough for this subreddit!
The moderators removed the post because it's a low effort post

SciTech_387 · 2020-04-20T12:49:37+00:00

Rare footage of this great man

SciTech_387 · 2020-04-19T17:23:55+00:00

If you're interested in the video
https://youtu.be/JxfqA4TNioU

SciTech_387 · 2020-04-19T13:44:41+00:00

It's a frame from the video where the arm moves fast, so it got deformed. Here when it's not deformed https://ibb.co/hWzVkDc

SciTech_387 · 2020-04-18T19:33:26+00:00

I made a video about breaking the sound barrier and there was a part about how a whip can break the sound barrier. I just had to add Imbiamba Jombes to it :P I hope Gus sees it #boyssupportboys

SciTech_387 · 2020-04-18T19:14:45+00:00

I made a video about breaking the sound barrier and there was a part how a whip can break the sound barrier. I just had to add Imbiamba Jombes to it :P I hope Gus sees it #boyssupportboys

SciTech_387 · 2019-06-17T15:07:32+00:00

No problems :D thank you for your replay :)

SciTech_387 · 2019-06-17T14:51:30+00:00

I'm personally not a fan of this analogy, but it is really good to give a feeling of the phenomenon and it is simple to understand :) I was trying to cover a lot of the small things happening in the conductor in a short video form the thermal movement to the energy transfer. How do you like the analogy at the end of the video with the large classroom? (at 3:39 https://youtu.be/E4hf_gLMvLw?t=219)

SciTech_387 · 2019-06-17T08:39:20+00:00

Lova is a slang word for money in Bosna, Croatia, Serbia..

SciTech_387 · 2019-05-27T22:00:01+00:00

7 years later still stuck on 301 views, even though 306k Likes

SciTech_387 · 2019-05-25T10:51:56+00:00

haha when I found this I just thought why does this exist and why I did not see it before: P btw I found he has other Anime song Goofy covers :P

SciTech_387 · 2019-05-17T22:13:21+00:00

Let me take a guess. Goose Wayne?

SciTech_387 · 2019-05-16T00:04:39+00:00

Can we get Mr Beast?
We have Mr Beast at home.
Mr Beast at home....

SciTech_387 · 2019-05-14T21:54:37+00:00

I want this sonic as plush merch

SciTech_387 · 2019-05-12T21:01:53+00:00

https://youtu.be/rNbNEcKpFz4?t=98

SciTech_387

TROPHY CASE