Seeing Sound Pt. 2 - How To See Actual Sound Waves In The Air 

Beauuuuutiful!!! 🤩

Sorry it took me so long to comment. I had my glasses on, so I saw this later than everyone else.

Loving this new content Benn, half-expecting you in a lab coat in the next episode.

"..and this is a regular left hand" had me cracking up. Good Content! 10/10

What a perfect visualisation for that prism track. I also regard prism as one of the best flashbulb tracks, ever

Dear Benn, many many thanks for sharing your findings! Was really pleasant to view : D One Love! Always forward, never ever backward!!

A great track to accompany the visual part of the video, enjoyed it much

Surprised you have only about 40K subs, your content deserves so much more! Definitely gonna recommend to my friends :)

You should look at sound-Lens by the Japanese sound artist Toshio Iwai. I think it’s exactly at that intersection of art, science, and sound you seem to be fascinated by. His piece is about turning the oscillation of artificial light sources into sound. His work is not that well known outside of Japan... so it’s hard to find references to his work, but in Japan he is considered to be one of the most important artists at the intersection of sound and technology.

Another idea I had this morning: fire is a plasma, and so can be influenced by electric fields/magnetic fields. Instead of acoustic waves?! Long ago a friend showed me a plasma loudspeaker he built (for the high frequencies) and it was the most crisp and clear sound I ever heard, because that speaker needs no membranes to let the air vibrate. So I can think of using that technique to create such images. Edit: plasma loudspeakers are also known as “plasma tweeter”.

Just wanted to say I've watched the odd video from you and was really impressed with your guitar playing so I checked out your Bandcamp. Your music is fantastic, oozes musicality which is more than you can say for a lot of electronic music and especially techy geeks ;) Will definitely be picking up some releases from you. Listening to Our Simulacra right now, fabulous stuff!

I haven‘t been that amazed by anything in a while but that absolutely blew my mind... Thanks Benn!😍

This is incredible! Keep on exploring - I'm sharing this

This is just amazing! You should do a whole A/V live show based on this... it would be FIRE!!! lol

The quality of your content and editing is exemplary.

God damn this is cool. Definitely my favourite youtube channel

Absolutely fantastic stuff, man. Honestly shocked how well it all worked!

Sounds can be seen under a process known as cymatics which are vibrational phenomenas made visible thru waves. Dark matter energy is also seen thru spectral lines and color palette pixelated images like infrareds. Key impressions are fractal, colors, pressures, temperature, and movements. Certain case studies like to suggest that synesthesia (visual stimuli phenomenon) may be a symptom of neurological disorders related to the spatio temporal lobe deafferenation visual pathogens. The temporal lobe harbors our auditory cortex which carry all types of sensory messages thru segregated pathways analyzing information. Neuroanatomy becomes really fascinating when we think about the number of alternated compressions in a period of time, registering as frequencies of sound amplified into acoustic energy waves then converted electronically thru receptors. The audible resonances in the eardrum, with pressure waves transferring vibrations into cross sectional membrane regions 🤯

Super nice! Also track is killer! Thanks for nice video.

I love this stuff, thanks for the great content! Keep it going Benn

nice work! Helped me understand infrasound's effects on light waves.

Your vids are always so unique and interesting, Benn(d). That’s why I circumscribed. No pressure.

This was one hell of an impressive video and demonstration. Thank you Benn.

yes yes yes! loving your work man! You seem to be going down some paths that I've tinkered with in the past and coming up with some great results. Also, been watching your vids for a while but no idea why I hadn't heard your music before, just my cup of tea (yes I'm english!)!!!! Keep up the amazing work dude!

10:17 so beautiful!!

Prisms is easily a top 10, maybe 5 song for me. Happy to see it being used

I love your videos Benn! 🥰

Dude, that was amazing and gorgeous.

sooooooooooooo cool! Good luck on #3

Very cool. Minds me on a roundabout way of cymatics.

Damn. I love it. Thank you!!!!

Dude. Wow. This is _incredible_. So cool. Thank you!

Wonderful!

thats insane bennster nice

this video needs more views! i'll show it at uni

I think I first saw this concept either on Veritasium or TodayIfoundOut. Very interesting effect :)

Fantastiskt!

I love the new interesting content very entertaining!

Love your videos

Really nice vid. End music reminds me of Hecq. And that's a big compliment.

That was very cool thank you

Awesome!

I've been watching your videos for months Benn and I've only just realised you are the same artist who created 'Extensions of Me', an album ive loved for more than a year now, I'm gone listen to all your stuff now :)))

Very Cool, How About using 2 cameras - one more from a side view? Also, would be nice to see the sound wave's peeks, like spaced 1.5 m for 220 hz. Also, would be nice to see the different pitches of instruments show different wave patterns

Amazinnng!!!!

That's cool ! I experienced Schlieren effects while collimating my telescope and this is quite awesome what you did whit it :-o

wow! this has great potential for live music performance. I can see it being incorporated on one of your future videos if you were interested in that. beats the screensaver visualization by a longshot. sick.

I swear that song was from Metroid prime 1. Great video

awesome

Nice!

Cymatic frequencies. Sarced geometry. Dmt the pineal gland. Then go see sound for yourself. I know you won't though seeing one rainbow hexagon concave mirror in an infinity of dimensions all around you is enough to blow anyones mind.

“I can see sound!” - “Go home, you’re drunk!” - “No seriously, I can see sound!” Absolutely beautiful and really interesting video, thanks a lot for this!

Yo which Bluetooth water-bottle was that you flashed your phone light through? I wanna join that kickstarter!

those telescope images look like they could be an analord-esque album/ep cover

to see the soundwave with schleiren, you need to pulse the light source at the same frequency as the sound wave.

Damn son 🔥🔥🔥

Have you tried using a single heat element like the ones college students use in small dorms for food? I'm betting that might widen the visual surface area to be refracted and be safer than an open flame. Or maybe a space heater with a small fan if the heat needs to move?

Tfw you're constantly rewinding the video because you're laughing and didn't catch the next part. 😂😂😂❤

Fun! I believe that’s the scientific term.

I loved this. What was that track that was playing during the capture?

How's the Patreon coming along? The content on here is top quality but I understand how much of a mess youtube and its recommendation system is - only found the channel because I was looking for that video of you making improv midi guitar you made years ago. I feel good about sponsoring people I like on Patreon because it gives the sense that your money is not only going directly to where you want it to go but also being used to create content that I personally want. If i had bulk money, I would be a producer of whatever documentaries and albums you, or the others i support, wanted to make but I'm just surviving as much as the next person. Paying a little bit each month for content is a two way street - it helps you but also helps us because we have a sense of control about how we are shaping the content in the world. It's not like any one of us has a say in what we get out of our Netflix subscriptions for example. On a more specific note. Paying per month I believe is better because it gives a better ability to chose what tier you can afford. I don't really see it being a problem if there is 2 videos a month sometimes or 5 the next, it's not like you are trying to make a quick buck of anyone If your Patroen had the ability to download samples you used in videos and the music you use for demo's that would be a massive plus. I love using well made samples in music even if its just for fun - J.Viewz for example has some awesome organic sample packs I have paid for and its a nice just to mess around with them. Other than that, there is at least one youtube channel I can think of that hosts a really a good discord with competitions from time to time. Mostly it's just fans hanging out and the moderators are fans too but it gives a home for people to come together and work on the competitions related stuff - that could be used for a Q&A once a week for a particular tier if you wanted to take that direction too. Peace my friend, Selby

This is amazing. I wonder how it would react if you took parallel walls, like a perfect cube or at least equal in 2 dimensions, and played frequencies meant to cancel or amplify by those dimensions...

It’s called . Die Schlierenfotografie ist eine Fototechnik, die 1864 vom deutschen Chemiker und Physiker August Toepler entwickelt wurde.

Your only further solidifying my theory about sound waves and "space travel"🤔

Beautiful and fascinating. Playing this video at different speeds, 0.25 or x2 makes some nice imagery. What if you played the sound x2 or more the normal speed and divide it again in post. Thank you for sharing these experiments combining sound and visuals.

This really isn’t a wavelength from a sound. It’s what the beat and mainly the bass is doing to distort or push the air. Sound frequencies themselves travel through the air almost exactly like the machines that pick them up and show the wave / length. Sound waves don’t distort the air at all.

I'm sure it's your voice too, but your microphone sounds great! What is it?

I wonder what the "pushing gas and heat with soundwaves" part would look like if you played the music like 4 times faster (with a 4x framerate to accompany) and then slowed it back to normal music speed in post

Man if someone had thought to do this in the 90's.......screensavers would look totally different today🤔

Light vs sound . For easy 333m/s sound 300.000.000 m/s light. Max distance behind glasses bending the light 5cm. That’s 300.000.000 : 20= 6.000.000.000. Also 1/6.000.000.000

Benn, I’m wondering if you’ve captured and “visualized” the sounds of plants?

making the hot gas into a laminar flow might make it easier to see

Nice video on a very cool technique! Given your can make the air oscillate at 100 Hz, why is the 1000 fps camera not able to see it, if we view it slowed down?

My German ears flatter a bit when you say "schlieren". :) "Schlieren" is spoken "ˈʃliːrən", the "i" sounds like in "Sin", but is spoken long. The "e" is not spoken. Sorry for knowing it better. I like you videos a lot. Thanks.

I see what you did there with the "Prism" song.

Wonderful job! For your next trick, you so need to team up with the slow-mo guys. Also, when this global embuggerance is over, you so need to come to Oxford England and gig there. ;) It's glorious. The University's older than the Aztec empire.

I suppose this is a different view than what you get with cymatics? I'm legitimately questioning how both views intersect? Maybe both approaches are mutually exclusive? Very nice experiment.

Again, beautiful images there Benn. Any progress about the demonetization of your music videos? You deserve proper credit both for your music and these great videos!

What are you going to do in the next video? Blow up mountains to the rhythm of your tracks???

I'd love to believe Google is right in its pronunciation of "schlieren," but it took them YEARS to pronounce "Devon Avenue" correctly in Google Maps navigation

Could this technology theoretically be used to optimize the listening position in a room? I.e., rather than a lot of fiddling with your old fashioned measurement microphone and calculating room modes, take detailed enough images of the sound in the room across the range of audible frequencies and 'see' whether the space around the listener's head is full of large, interfering waves. Ok, definitely not easier than the old approach to build oneself, but theoretically possible, right?

Imagine one mirror for every track in the mix

Very cool video, I have never seen this type of sound visualizing before! You are probably taking advantage of aliasing when you put your camera to record at low fps and record static/flickering light. I'm guessing you get the static images if you use a sampling frequency (f_s) capture a sound frequency (f), so that f*n = f_s, where n is an integer over 0. So say you set the framerate at 30 fps and the sound at 300 (n = 10), this will probably happen. You can try to offset it by 1 Hz (say 301 hz from the last example) and get a flickering effect with a period of 1 sec.

I want someone to make music intended to be listened to on phased arrays, where the song changes in some unusually significant way as you move around in a room. stereo taken to an unnecessary extreme

a little confused about what you were trying to capture when you mention avoiding airflow at the end, are you trying to just see a wavefront? a tube or special porting could exaggerate the magnitude of the pressure differences, but that would also be 'airflow' in physics or whatever 'airflow' reads as a constant term, like a fan. but differences in pressure also equalize over time, causing airflow if you're add energy with something like a speaker you can get standing waves of pressure differences and that's not really airflow

I need to be able to verify infrasound with a picture or video. Can you do that?

Wouldn't that parabolic mirror be vibrating due to resonance? Couldn't that lead to a "false positive"?

Use a stroboscope maybe

This makes me think of "kirlian" photography. I don't know if I spelled that right?😅

Amazing, you should try to hook up with Dustin from smarter every day. I bet he'd love to see this. edit: also love how off the beaten paths your videos are, you're anything but predictable!

Will be interesting to see this with the light strobing at the same frequency as one of the fundamentals. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE--bOij4uPQ7s.html takes that approach. Makes me wonder what would happen if the razor was mounted on a transducer and fed the original signal (or a tone related to the framerate etc). My pessimistic guess would be a blurry image, but I have no idea really.

Of a second

As usual, really nice work, and so cool experiments. Thanks. I don't know if you have been or could be inspired by the "visual microphone" from the MIT, but if you don't know it, you could have a look at "video magnification" page people.csail.mit.edu/mrub/vidmag/ It is probable that more recent works have been performed on this subject, but it was one of the first thing that came in my mind when looking at this video.

Those visuals are awesome!!! You talk about trying to avoid forced air motion from the speaker, how does that differ from 'sound' then? Have you seen Smarter Every Day's schlieren imagery of a supersonic baseball? ( ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-cqidD7kVnxY.html ) Also, have you managed to sort out your copyright issues? 😁

Sorry, but none of your examples are diffraction. The flashlight trick is the center of the bulb being reflected and focused around your finger(s) by the flashlight's reflector. The sun picture is just multiple rays caused by the cloud edges letting light through. The bedroom door is multiple reflections in the room leaking out the door at different angles - there's no way that crack could be small enough to cause diffraction visible from that distance. If you got close up to one of the ray's edges, you might see diffraction.

nice research which could be useful in determining the right material to neutralise that nasty LRAD...

please don't go bang

RU-vid copyright claim in 3...2..1...

Dude, that was not diffraction but the reflection of light from the reflector behind the bulb of the flashlight. That's not how you demonstrate diffraction at all...

watch a harvard professor explain it on RU-vid.