Unbelievable Noise Cancellation Experiment

In this video I show you how noise cancellation works and give you a real life example that you can experiment with on your own!

Credit to myurgil for inspiring the ideas in this video many years earlier:

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*Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on The Action Lab channel.

[TheActionLab]

Hi everyone! The experiment clip starts at 4:34

[curiosity_saved_the_cat]

This must bee why I have trouble making decisions sometimes, my left hemisphere cancels out my right hemisphere and I end up taking a nap.

[jpe]

Every time he says “audio file” I hear “audiophile.”

[lonzodaman]

I discovered this noise cancelling effect about 35 years ago when I accidentally connected half of my speakers with reversed polarity to my car stereo. The sound didn't disappear completely but was very "thin". Should have claimed a patent for this. ;)

[inuka]

Fun Fact :
If you delete your audio file, you can't hear anything.

[CoolDudeClem]

Wish I could do this to my neighbors music!

[AlvinCwk]

so can I copyright claim other people's silences in their videos for using my digital audio cancelation sample?

[himsim]

See you in 5 years when this will be recommended yet again

[dmdplayz]

0:00 Lol I swear I thought I heard you saying that in a very tiny voice in my head, but i realized i just read it in ur voice after I put the speaker close to my ears.

[UnreadRez]

Cool lol i was about to turn the volume 😂

[nyancat]

Deaf : Drake disapproves

Noise Cancelling™ : Drake approves

[nikhedoniac]

5:00 - That external hard-drive, perched perilously at the edge of table, is stressing me out!

[DCTGoddess]

I discovered, accidentally when I was having a problem with a headphone jack, if I positioned it the right way I could hear the music in both channels with some parts of the mix phased out. Depending on how a song was mixed, and where instrumentation and vocals were placed in the stereo image, i ended up with stripped-down versions, or karaoke quality songs. I could hear edit points, and riffs that normally would be buried in the mix. I started trying it in Audacity, and ended up with a really interesting play list!

[brettcameratraveler]

This works pretty well in a open area with two ultrasonic speakers as well. You might love experimenting with US speakers. They are hyper directional and give the listener the feeling like someone is talking in their head. You can also turn air into haptic shapes, levitate things, etc

[Anklejbiter]

I just recently had to deal with something similar, I needed two left and right tracks to be different for something so i just copy and pasted the mono track and inverted it. Sounded fine to me, but when i tried showing it to someone over a speaker it wasn't there anymore.

[RobertEnterprises]

I love that you come up with simple and yet so interesting concepts and experiments for a video. This makes you learn about the topic at hand much easier, because you can visually, or in this case audibly hear the difference and do some experimenting on your own. Fantastic job as always :)

[biggusmunkusthegreat]

I compose music on a DAW. It's kind of fun to go back and invert previous versions of tracks to hear the difference in what I've added/removed put together. I do this from time to time :)

[puspamadak]

I had also done this experiment while learning about waves in class 11. It was really interesting.
But your idea of doing this with an audio file was just amazing.

[anizan]

I am a music producer and knowing about noise cancellation beforehand made me feel smart

[vicnie]

People with mono audio: is this a prank?