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

[@inertiatic88]

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

[@Appleloucious]

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

[@NicStage]

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

[@SimonTheMagpie]

Beauuuuutiful!!! 🤩

[@LazloH]

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

[@hotdogskid]

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

[@theowollnik]

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

[@ssilk]

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”.

[@kowloonbroadcast]

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

[@AmnonBarnea]

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

[@yvesbajulaz]

The quality of your content and editing is exemplary.

[@Elkesar1]

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

[@ozzy3ml]

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!

[@phillanthony]

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

[@Dilworthy]

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!

[@cooldaze57]

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

[@CaidicusProductions]

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

[@mid-westbigfootresearchers8665]

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

[@sameccleston8673]

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 :)))

[@beggbasso287]

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

[@eninfamousvy]

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

[@herrizaax]

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

[@praticle]

I love your videos Benn! 🥰

[@jacobpetersen4038]

God damn this is cool. Definitely my favourite youtube channel

[@ElRayDelRio]

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 🤯

[@I-0-0-I]

Dude, that was amazing and gorgeous.

[@doublebyte01]

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.

[@theboytheycalljonny1]

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

[@JansKanaal]

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

[@t3hjnz]

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

[@billy_pirie]

sooooooooooooo cool! Good luck on #3

[@alexyang8440]

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.

[@jessramer9767]

I love the new interesting content very entertaining!

[@SyntheticFuture]

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

[@barely_awake]

“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!

[@jawwwp428]

I’m not an expert but I think they would think you are high

[@jon_gee]

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

[@Chryoss]

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

[@gidi1899]

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

[@denysedavid2522]

Love your videos

[@danielpirone8028]

Wonderful!

[@Lynn-hp1bx]

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

[@kathychapman3542]

That was very cool thank you

[@jonwtr]

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.

[@1laurelei1]

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

[@BaileyHeredge]

thats insane bennster nice

[@MDJ5]

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?

[@almightytreegod]

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...

[@SNAFU2012]

awesome

[@NowhereNear]

10:17 so beautiful!!

[@magickinfused5230]

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.

[@Brian_Grant]

Awesome!

[@joelkulesha8284]

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

[@aarongarwood4431]

Fantastiskt!

[@h7opolo]

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

[@HelloThere.....]

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

[@ultratone]

Fun! I believe that’s the scientific term.

[@sameccleston8673]

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

[@increaseoverture_]

Nice!

[@waltmodul7948]

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

[@vagifrzayev280]

Amazinnng!!!!

[@JeremyAdcock]

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?

[@mindfulsticks]

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

[@SkyOctopus1]

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.

[@patch6306]

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

[@jordanolson]

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

[@knockoutcustoms7477]

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

[@steelemedina]

Damn son 🔥🔥🔥

[@waltmodul7948]

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

[@lindaandersen6897]

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

[@aaronsorensen5165]

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.

[@halveiz]

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.

[@SE-144]

I thought sampling freq has to be 2x the freq of the signal to remove aliasing error. Maybe I don't understand the point being made :)

[@halveiz]

@@SE-144 Yep, you need 2f_s>f to be able to reproduce the original signal you put in, but in this case, one can make use of aliasing instead of removing it, which I assume happens in the video. You would get the same effect if you sampled a sinusoidal signal at say 500 Hz and f at 501 Hz. The reason to not use 250hz here instead of 500, is that one would sample both the positive and negative parts of the sinusoidal instead of just one point at it. The signal you end up with would then look like a 1 Hz sinusoidal. In fact, the reproduced signal of an f_s of 500 can never go above 250hz, it will cycle between 0 and 250hz while increasing f. There are multiple videos of this effect in action on youtube already, either by filming a rotating propeller or the videos where they add a 24hz bass signal to falling water while filming at 24 fps.

[@benediktjensmagnusson2388]

hello, what do you use to develop these frequencies used on minute 6:00 ish?

[@float9250]

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

[@SE-144]

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.

[@MichaelYoung-i2c]

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?

[@knockoutcustoms7477]

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

[@djvanzz]

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

[@selby5675]

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

[@imboss3879]

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

[@ParallelusReflection]

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!

[@steubens7]

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

[@chcpatreon]

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

[@ssilk]

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.

[@laurenpinschannels]

flatten a bit? :D

[@DumblyDorr]

For people accustomed mainly to English phonetics, it might be more helpful to think of the "ie" in "Schlieren" as being pronounced like the "ee" in the English "see" :)

[@low_rise5030]

fellow German here, thank you for being the weisenheimer ;) I'd say you're best off pronouncing it "shlee-ren" - for everybody who doesn't want to look up the IPA

[@Khunvyel]

Dear Alex, the "i" in "sin" is not a good analogy. An "ee"-sound akin to words like "reeling" or "kneeling" and the like is much closer to "schlieren." If you are being nitpicky about things like that, it would be good if you also get it right :) Just like ears don't flatter ( "Da flattern mir die Ohren"), if anything it would be flutter or quiver, among others. It's a phrase, so it's unlikely to be transated 1:1 , and instead there might be a different phrase in English :)

[@ssilk]

@@Khunvyel It was pure purpose to use a german proverb and not translate it correctly to reflect the feeling I had with it - and perhaps because I won't be a weisenheimer. Just saying this sounds terrible, must not be perfect, try a little bit different, then it's ok.

[@kalesyps764]

Imagine one mirror for every track in the mix

[@stefvanloon8988]

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

[@ShamskyDoggo]

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

[@BobRobertsMusic]

It's sorta correct if you really listen for it, but mumbled together too much to really sound right. The correct pronunciation is basically shlee-ran, like "Lee ran away" with a sh in front :D

[@laurenpinschannels]

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

[@andrewdewar8159]

Use a stroboscope maybe

[@maxmatson1578]

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

[@chrisw1462]

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.

[@Renzsu]

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!

[@waltmodul7948]

Of a second

[@adrianlikins1314]

Will be interesting to see this with the light strobing at the same frequency as one of the fundamentals. kzbin.info/www/bejne/Y5Oymp1qqrWEbdU 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.

[@h7opolo]

watch a harvard professor explain it on KZbin.

[@benbainbridge]

please don't go bang

[@jonathantaquet8197]

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.

[@derdopusher]

KZbin copyright claim in 3...2..1...

[@johnnyswatts]

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...

[@noostroi]

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? ( kzbin.info/www/bejne/maLMlXdtoLuhrrs ) Also, have you managed to sort out your copyright issues? 😁

[@MACRONOne]

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