Can you Hide From my Super Hearing Helmet? 

Oh yea, that opening shot wasn't horrifying at all

ngl, those ears on eyes at the beginning are much better composited than the third eye of Dr. Strange lmao

So, sound localisation was literally the topic of my PhD. Really enjoyed this video. Some context: There are 4 main types of cues we use for localisation. Spectral filtering by our pinnae (the flappy bits of our ears that we see), interaural level differences (difference in sound level between ears), interaural time differences (difference in timing between ears), and dynamic cues (how those interaural differences change as we move). By using head-mounted microphones, Sam is getting rid of the unique spectral filtering that his ears do, simply by being the shape they are. These are cues that he's learned over his whole life, but are mainly used to give him information about the height of a sound. You could get round this by using in-ear microphones, but the compression (see below) would still alter this. You can learn new pinna cues, but it takes about a fortnight of constant use to get back to your natural ability. The level-difference cues are trickier to work out. Normally, we compare the difference in level between our ears since our head creates a shadow for the ear facing away from the sound. But where the mics are mounted, he'll have lost that effect. However, I don't know how directional those microphones are. Buuut, the bigger issue is the “limiter”. I don't know whether it was a hard limit, or a linear compression, or something else that was used to prevent Sam from destroying his hearing, but it makes level differences much smaller than they should be. This is something that can happen with hearing aids too, and can actually cause sounds to feel like they're at the opposite side from where they really are. So to the main event, time difference. A sound off to the left will reach the left ear before the right one (and vice versa). For lower pitched sounds, we can detect these tiny differences and use them to figure out the direction. Cranking the volume up won't affect this. But the fact that those mics are further apart than Sam's ears likely means he had a “zoomed in” perception of direction, which is probably what really made this possible for him after taking away all those other cues.

You should try setting up a vr headset with a render of the studio where the walls only appear when you're close to better reassemble echo location and let Sam move around without fear of bumping into walls and door frames

The big difference between someone with mics on their head and the aliens from A Quiet Place is the aliens are stronger, faster, and willing to throw themselves into a wall to get a kill. If Sam had the same aggression as those aliens, he likely would have gotten more kills, but humans have caution and self-preservation, so he walked more slowly and cautiously to avoid hurting himself. The aliens don't give a crap lol

imagine bending down to hide near these creatures and your knees crack cuz you're old af ☠

"How'd work go, honey?" "We played hide and go seek" "That's nice, wait what?"

Jordan stress eating popcorn while Wren is being chased by a blind monster is a crazy visual.

I think a great next edition for this would be using your guys’ 3D VR rendition of the office and replicate it so that sam can see his surroundings like echo-location but still have to track down the people by sound. Then he could REALLY chase them down!!

Wren: this will be easy Sam: how easy will it be when I’m aiming a Glock at you Wren: 😧😧😧😧 The rest of the crew randomly overhearing this: 😮😮😮😮

It'd be cool if they tried this game in the dark, so the hearing person has an advantage.

Not sure about dogs but I know Cats also use their long eyebrows and whiskers to sense vibrations on the air, so no matter how quiet you are they still feel the vibrations of you getting closer to it.

Just imagine an already blind person and have been living using their ears who's chill enough and will take it seriously to cooperate with this

13:55 Wren understood the assignment.

I would say that getting one is still a win. As animals/monsters that have had this hearing all their lives, they have honed in to what they are hunting. They have had years to perfect the ability to pinpoint and adjust to the sounds their prey makes. Sam is going into this as a beginner, I am sure over time, he will perfect his hearing ability.

"These fuckers come right off" was hilarious. Flexing the unzip pants/shorts duo. Incredible.

That head rig is so cool! We've got lots of tech to enhance vision, first time seeing something for sound. Also, thanks the shoutout Sam!

0:00 How I imagine people when they say "I'm all ears"

I think it’s fair to assume the creatures would also have superior audio-spatial processing, so I kind of thought you’d take it up a notch and use some kind of screen to visualize your audio input

you have literally created a Minecraft Warden with a gun XD

The monsters in the movie are way faster than people, right? In the game, everyone should have to walk at a medium or slow pace to mimic the disparity.

really missed these types of videos, this was really awesome and nostalgic, id be dead like dean LMAO cuz of the popping ankle joints LOL

this is such a cool idea! I think trying this out with a 360º mic may yield interesting results. Sam can only hear what's in front of him with the set up whereas the monsters would be able to have an entire spatial auditory image

actually dolphins DO visualize sound. They have studied this. You can communicate the shape of a complex object through only the use of sound and the dolphin can then search for an object that meets that sonar signature and retrieve it.

Honestly this video put such a smile on my face. Corridor looks like such a fun place to work. It legit looks like just a bunch of adults who still have that childish whimsy in them allowing them to essentially play fun games like blind tag as adults xD

This was much more entertaining than the video parodying the Quiet Place. I wonder just how precise you could get after wearing the helmet for a longer period of time

0:01 jumpscare

This sounds like a GREAT game to play at Halloween

The pinnae, or outer ear, is the primary 3d location device in humans. The reflections off of the outer ear help us determine triangulation. Analog Binaural recording demonstrates this well. When i was in a psychoacoustics class in an audio engineering program in the early 90’s, it was demonstrated with a dummy head with ‘average’ shape sculpted pinnae for ears and lav mic’s in the location of the ear drums. The instructor put a piece of paper on top of the head while we listened with headphones and it actually sounded as if the paper was on top of our own heads due to recording the comb filtering effect of the outer ear reflections. Same with location when the instructor walked to different locations while speaking. Beyond left and right, you could determine front/back. Without pinnae we can hear stereo, but the pinnae help provide up/down and front/back directionality providing spacial triangulation.

My ears enjoyed watching this video

Good thing you guys had music blasting the whole time so the viewers don't know anything thats happening or if the mic thingy even works! Great Editing!

This is unironically one of the best videos you've ever made. So entertaining

Wouldn't aliens with super sensitive hearing be incredibly easy to beat? Just bring em to an airport...

I once plucked some strings on my guitar and I swear I could see the vibrations coming from the strings and flowing through the space in my room! Well…uh, granted I was high af on acid, but it was still cool!!!

You should use a VR headset to be able to see the hearing, like have echolocation as well so you don't run into things. It could also label the direction sound came from.

Best sponsorship segment I’ve ever seen 😂😂 5:05

Jordan got Wren killed there haha! Great spot though behind the screen

Would've liked to see a control "group" doing the same games without enhanced hearing.

4:22 Sam testing by screaming turning into pure pain is priceless 😂

So, Sam...I have a new approach for you. Some context, my Dad was born blind and was a bit of a champion for the blind community. As such, he received a number of technologies over the years that were intended to assist the blind community. One of them (from like the late 80s/early 90s) was a device that emitted ultrasonic frequencies and converted them to stereo sound. This was all done via a very clunky glasses/headphones device. But, I remember using it just for fun. It essentially allowed you to echo-locate things around you. Really solid things like walls would be converted into a high pitched static...while "softer" things like a hanging branch over the sidewalk would sound more muffled. If you really want to replicate the aliens from A Quiet Place...I think you'd want to replicate not only their elevated hearing, but also their ability to "see" via echolocation. I think this can be done with a little research. I can tell you first hand that I played around with this device and could navigate around my house and yard without peeking. Anyway...just a thought.

This definitely does not abide by HR rules

I'd like to slightly correct something said in the first two minutes: If you think about it, with 2 ears you shouldn't be able to locate a signal "in 3D", and it's actually incredible how we can do it. The shape of our the outer parts of out ears reflects sounds from different directions, and our brains are sophisticated enough to separate out the delayed signals and calculate a 3D direction from that, even though with triangulation and just 2 "microphones" you couldn't. The same effect is used for creating "fake" 3D sound effects, which basically delay the regular sound signals in some frequency bands to trick our brains. Some animals(e.g. cats) tilt their heads/ears instead to locate objects in 3D based on sound.

i love corridor and the crew vids, but this one especially i found fascinating. well done, guys!

I think part of it comes down to the fact that the monsters are willing to get hurt, or maybe they don't really get hurt from running into walls and such, as compared to most people. We'd rather not run face first into a wall or the corner of a desk on accident, which slows our speed when doing something like this, where the monsters would just full sprint at whatever noises they heard.

one of the best episodes ever! amusement parks should have something like this!

Love when you guys do content like this. Cool challenge, and entertaining as hell! Keep it up

I think the best part of the movie, was that it looked like you guys had a blast. Either you are really good actors or can be really happy enjoying your job :)

Haha i actually enjoy the jordan ads. Her timing is always great. "I didnt like that" after the high five 😂

I love it when there's a good challenge involved.

this was a crazy cool idea!! love the whole crew.

this is the first video i've seen from you guys, and this whole idea is great, and the sponsor segment is gorgeous yall are amazing

I don't normally say this in general but that ad read was so good

I didn't need to sleep today, thanks ear-eye sam :] I love these types of videos from you guys though :D

I really want this to become a regular show on your channel. Each ep can have different challenges. 🙏 SO ENTERTAINING!

Jordan's ad spots for Vessi are so polished now, I no longer skip past them they are actually worth a watch on their own

Me with my mono audio headphones: Yeah, I can hear in 3D. Sure.

4:34 Although the two are often interchangeable, what Sam's describing here is a compressor; a limiter only attenuates the overall signal peaks based on a threshold (say, unity gain) whereas a compressor squashes the dynamic range between quiet and loud. I imagine he would have both on his signal chain though 😀

'House' did a cool episode on this where a female astronaut was hearing with her eyes.

That's the only time I have rewatched an ad. Yes please to more Jordan ASMR

I like how you pare the two most seriously focused people in the studio with Wren and Jordan and are surprised they go that hard. You should have suddenly turned the lights on them

This was amazing and we need a sequel.

I’d love to see you do a 2nd version of this with a VR audio visualiser to map where the sound is coming from to give the hunter a bit more of an edge

These quiet videos are a blast. Great job guys❕️

This was so much fun to watch. Considering that a species as such may evolve like “Daredevil” to actually visualise from the soundscape, I am convinced that they can be a lot more lethal than the movies give credit to them.

6:34 unexpected turn

Why is Luke Skywalker back? He's in literally every other episode!

Really scratchin that Mythbusters itch with this one. Thanks guys

This is the Quiet Place challenge but more movie accurate and more tense

Minecraft Warden in real life? :o

1:15 actually most people only have one ear on either side of their head 😂

Aside from all the crazy vfx work these guys do, this looks like the most fun job in the world

Seeing the office Jackie Chan back was amazing and brought back so many hilarious memories.

You've basically created those electronic shooting ear pro ear muffs, Lol

3:34 22dB is a LOT. The Decibel scale is logarithmic, so each point is based on part of an exponential growth (this would be amplitude, so the growth factor is 10¹/²⁰ where increasing the amplitude 10 times is equal to 20dB.) If the "monster" had hearing that is 22dB then it hears about 11 times better than a human, meaning that tgwy hear things 11 times louder than a human could.

A very clever idea, story and execution! Fantastic! Cheers!

I can't quite put my finger on why, but I particularly love this video. I hope you guys had huge fun making it.

kinda feel like paying a blind person 120$ to shoot at you for half a day would have been both cheaper and more of a challenge than building a daredevil helmet out of professional mics.

Nice I was just expecting a regular behind the scenes but this is way better.

Clint drinking the bean juice was even more horrifying than sams ear-eyes, i bet it was cold too 😝

1:18 lol i realized i was wearing my headphone wrong way!

Oh a Sam video!! Havent had one if those in a long time.

I missed these!

This is basically sneaking downstairs when you were a kid that gets food out the refrigerator

I cant explain how much i love this. This trueley reminds me why i love Corridor.

I guess you forgot about shooter games, where you can win just by listening to your opponents movement. So yeah, you can "see" with your ears

I already do that.

The thumbnail had my dying on the floor. 😂🤣😂

Don't Breathe was way more more horrifying than A Quiet Place.

I tried to watch this video with my ears

nah that first ear shot was cool/terrifying 😭

you know what would be crazy? an Oddly satisfying challenege BUT with sound. aye. Corridor trying to make to most satisfying AMSR vid ... due to all the audio sensitivities discovered from this :3

This was super fun to watch, more of this!

Been wearing Vessis for the last 6 months, so good!

Playing hide and seek with this thing would be amazing. If you ever hid under a bedsheet or in a wardrobe as a child during hide and seek them you know how nerve wracking trying to make your breathing quiet is, now imagine it with this super hearing seeker seeking you

The timing on the release of this video is PERFECT.

i would absolutely break out laughing at the sight of sam with that helmet rig

Glad to see you used upwards/downwards compression to save your ears XD. My first thought was, "oh you could do that with a compressor".

This is like old school Myhtbusters, love this kind of content. Adam Savage is proud and impressed, I'm sure.

The really cruddy thing is, exceptional hearing can allow you to hear a humans heartbeat from quite a distance.

1:04 dude, thank you for this. It made me realize one of my speakers wasn't working.