And additional thing to consider in terms of getting clean playback: for this series you need to listen to the 720p version or better -- the lower-quality streams degrade the audio (including the stereo separation).
Something you haven't mentioned is the effect when listening to a piece of music with a heavy bass through headphones, I can feel that bass in my feet and diaphragm, even though it can't possibly be having that effect for real.
As an audiophile, one of my favourite features of listening through headphones is feeling the delicate air pressure variations on my ears. Some mixes are far more pronounced than others and feels like the music is intimately dancing with my ears. My most powerful example of this is the intro to Parasite by d:enigma. I'd be interested to learn more about the correlation of sound, mixing and air pressure so that one day I could create music that dances purposeefully with your ears while you listen. I just don't know where to begin my research.
Have you explored binaural recordings much? Often times that "tickle" of intimate-sounding mixes comes from provocation of our stereo field perception, and there are several popular methods of achieving this with binaural dummy heads, etc. Assuming I'm hearing what you're hearing on that track, that'd be one area I would explore: methods to enhance/modify/play with the stereo field.
@@CaseyConnor I do love a good binaural recording, and hope it continues as a trend in music production (thank you Chesky Records). I didn't associate that with this piece until you mentioned it, but looking back, it makes sense! As I get into audio production, stereo field is definitely something I'm keen to play with. Thanks for your thoughtful response, Casey.
FINALLY I KNOW WHAT THAT RUMBLING NOISE IS Oh my God I've spent 20 years feeling like I was crazy, never knowing how to explain what it was. Thank you.
"i percieved something that was if you listened a music very low, you will miss the parts and almost missunderstand the music, but once you know the music, have already listened it loud or know every single detail, once you identify the music it gains quality and you can really perceave the low music with a high quality one" you can try it like when you listen a music for the fist time and "don't know it" and don't pay attention, if you stop and pick other part in low volume, principally the chorus, you will "miss" parts of the music. After listening it for a while and listening it in a proper way (quiet rooom, good headphones) you will listen those parts. After you "memorized them" if you play the music anywhere at any wuality you will "hear" it, even if others don't. i started realizing it more often with a speaker from a car that was missing frequencies on road. I still could listen to some parts and if i asked someone if was there they likely didn't noticed is pretty awesome
Styrofoam and cardboard, fingernails on chalkboard - both examples of stick-slip phenomena between interfaces. Happening quickly at a high frequency - maybe like cacophony or a crying baby (which scientists say we seem to be programmed to respond to from the gut).
This was an insanely great series to binge. I'm so glad to have found your channel! Great to put a face to the voice as well. Kinda goes with the theme 😜
Ref. yawning and pitch perception: I don't really hear any significant pitch change when yawning. However, when listening to music with distinct rhythm or beat or any rhythmic sound, when I yawn, the tempo appears to rise quite significantly! I can also replicate this effect by opening my mouth wide, tightening the muscles in my jaw and throat - basically mimicking all physiological phenomena that takes place when yawning - and again the tempo goes up. The effect is so strong, that I can keep on counting the changed beat in my mind right after the "yawning" stopped - or tapping my finger or even voicing it - and then can hear myself the difference to the original music still playing and the beat I count. The difference is surprisingly large, perhaps 10-20%. (By "counting" I do not mean counting 1,2,3,4.. but repeating e.g. the drum beat mentally, tapping finger or by making a rhythmic sound with my mouth - not unlike beatboxing.) No you have any information of such phenomena?
Fascinating; no, I've never heard of that. Doesn't happen for me (although there are strange sensations relating to time that happen for me when I yawn... there is a sort of disorienting shift in how time "feels", if that makes sense, but it doesn't translate to a change in tempo perception for me.) I haven't in general seen much in the way of psychoacoustic research relating to tempo perception, but I'm no expert. It strikes me as something that would be pretty challenging to study... maybe that's why? If others have experienced this I hope they'll chime in.
@@CaseyConnor The way you describe your sensation, it sounds somewhat similar to what I experience. It may just be that I have always been "a drummer" - I always listen the beat/rhythm first. (I also love disco/dance/industrial music where the beat is a major factor.) So this may explain why I pay attention to the perceived change in rhythm, and not so much to the other, simultaneous effects of tightening the throat and jaw muscles.
Excellent series, well done. The missing fundamental effect was well exploited by Motown engineers who popularized bass lines heard mostly on 1/4 watt transistor radios with 2" speakers incapable of reproducing the fundamentals.
One effect I get is while wearing good ear bud type of headphones and really deep bass with the low rumbling, I can feel the rumble in my chest and lower notes it feels like the ground is rumbling. I thought is was my neighbor pulling up with his sound on . This house has hardwood floors suspended 3 feet so I'm used to feeling every sound I hear. Even my hands feel it. As I sit here and think about how bass buzzes I can feel it through the chair and the ground matching the music I'm listening to, didn't know I could do that. Great Videos.
@@CaseyConnor I've got a big room that's an add on and It's all wood. The walls and ceiling are tounge and groove cedar. When those thumping steros drive by everything vibrates.
As an autistic, horrible sounds are pretty much only way i can explain sensory sensitivities. Neurotypicals hate knife on porcelain sound; I hate touching cotton balls. It makes me want to cut off my hand.
When you are mentioning the tritone in your other video I was a little bit confused because I knew what it was supposed to sound like but it didn't sound like that at all. I'm glad that you clarified that. Also when you were just talking about you were going to play it, my mind envisioned what the first note was going to sound like and what the S note was going to sound like and I was pleasantly surprised when you played the tone that they were exactly the notes I was thinking about and could hear in my mind. Interesting
I was also wondering as far as tinnitus, whether if person with tinnitus could analyze the frequency close enough if there was some way that that frequency could be put to a headphone into their ear and made to be somehow out-of-phase from The Sound their hearing in their head which would cancel the sound altogether. I've been thinking about that for years but this the first time I've ever told anybody about it. If there's some way you can replicate that or test that I would certainly share whatever profit could be made off from it with you LOL
Enjoyed your series. Being a musician for over 50 years means I was aware of most. But one you missed! Take a drum beat, like for a surf tune, and slightly loud in headphones. Slowly remove the phones while listening and the beat seems to speed up a lot!
Yeah, interesting... one or two people have commented about changes in tempo with headphone removal, or at different times of the day, etc... I haven't heard it myself yet but I'll definitely keep an ear out!
My sister and I CAN NOT stand the sound of other people crunching to the point that we get mad. I just realized that it is only when certain people crunch. I think it is how the sound resonates in the skull.
Literally even just thinking about the sound of someone's hand scraping across a sleeping bag makes my whole body all tingly with the cringe. That's my most hated sound. Lol
for the consonance calibration effect, Olivier Messiaen used it in his piano solo, La Colombe, check at 1:44, 2 melodic lines in semitone playing in octaves, but sounds ok. ruclips.net/video/z2pwTP7g7xE/видео.html
Do you know about Patrick Flanagan's Neurophone, apparently it gives one a wider frequency span of sound perception than the normal. Also I recommend the work of Manfred Clynes, which can be found in his book "Sentics the Touch of the Emotions" also rexresearch has some papers of his of interest, also Flanagan's.
Sometimes i can like i guess you could say its like a muscle in my ear that I tighten i dont know how to explain. It makes a double click with a low bum in the background. It makes hearing harder but sounds i make are amplified so i guess thats my voluntary control of acoustic reflex ive done it since i was 6
reposting as i saw a year gap between videos hahahah -other thing i am paying attention (is more on the brain education level (neurological) than ear by itself) is that when you listened a music once, you can probably don't like it on a show, but if everytime you listened the opening or ending and it have the same music, you will start to like it. i saw this fenomenon with anime and tv shows, at start you can say "its bad", doesn't fit properly or "the one from last season was better", but once you get used to it and (it is a good show so you enjoy viewing it) you will likely blend the emotion of beeing a good thing with the music and will consider the music as good. It can happened on parties too as you can record a good emotion or good memory and record something with it.(like the flash and beep sound) it is used to train you brain in a dificcult cenario "if you cry, snap your fingers", if you do this every time, one day you snap your fingers and will cry with no reason. your brain got used to one be coorelated to the other and if one is present, it thinks the other will be there soon". It can extend to traumas and other things, but i have to say, is just me saying and observing. It is not a scientific research done by me! But others have studied, if you are intrested go after them, don't pick just my word and use it for life :)
Yeah I should have maybe mentioned that wireless earbuds are likely to have no crosstalk since it's a digital signal being sent to each earbud. As long as none of the "enhancement" stuff is on, they should be good to go. Unfortunately a lot of wireless headphones and earbuds do have that kind of stuff turned on by default.
Yeah it seems like i should have mentioned that somewhere. I think subconsciously i just assumed the topic was so well covered already, and i don't really have much to add, but it's definitely an important psychoacoustic thing. Maybe in a future video...
The rumbling sound you mentioned i dont think is actually the tiny muscle I dont think. When I move or contract my lil muscle inside, it feels like a pressure deep inside my ear canal, followed by a really short, around 3 seconds of 10db or so of quiet, its rather interesting too, and that rumbling sound? I can do that too whenever i feel like it and i find it neat.
Hey Casey Could you please explain the effect when listening to some music sends a shiver all over you body and some music doesn't.? Is this the same effect on the chaulk board but tonal resonance?
Hmmm, not sure I even know the effect you're speaking of... I've had the experience of goosebumps when listening, for reasons of psychological enjoyment, but if you're talking about a more physical response I'm afraid I don't know anything about it...
I think the "chalkboard scraping" effect on people is called misophonia. In my case, I get it when I hear the sound of rubber, like that of a balloon (inflated or not), making a screeching sound as it rubs on other objects (the pitch can vary widely and still be an issue). It gives my teeth the sense that I'm chewing a balloon and gives me chills down my spine. I used to deal with it by widening my tongue and biting down with my molars to dampen the resonance, but I've slowly been retraining myself to not be adversely affected by it, changing my mindset to treat it like ASMR, and I'm not as averse to it, at least after I give myself a moment to get past the initial sensation. Using a squeegee to wipe my glass shower panels used to be barely tolerable (the sound plus the vibration of the rubber while holding the shaft), but now it hardly affects me, as I barely give it any attention. Mind over matter.
For a purely tactile "chalkboard scraping" effect try (carefully) rubbing two old fashioned incandescent glass light bulbs together. It makes very little sound but the feel of it is nauseating to me. I think my brain interprets the glass rubbing as a version of the teeth or bone grinding effect.
There is research suggesting that the pressure of the cochlear fluid in the inner ear can affect pitch perception, so I tend to ascribe these effects to that phenomenon, but I'm not sure.
I still did not hear the binaural beats despite my headphones having near-perfect channel separation, video quality being high, and there being no sound correction enabled. Note to self: don’t add a single voice without listening in mono from now on
Not sure if this has been stated in the last two follow-up videos of yours regarding these topics, but I sometimes feel like the pitch of the track that I am jamming / listening to minutely increases by a few cents (maybe half a semitone) in loud volumes, only for it to decrease back to its original state when I dial the volume down to normal listening levels to rest my ears. That's when I mostly notice the effect taking place, though my perception of the tone of the song will still increase if I raise the dial up again, maybe by, again, 50 cents. I have only experienced this when using headphones (closed-back) and in volumes @ ~80 decibels. I suspect this might have the same roots as the Headphone Pitch-Shift Effect that you described in part 5 of the series, as in both cases the pressure that your ears receive decreases quite rapidly (whether you turn the volume back down or take your headphones off and to the front of your head). Just a fun hypothesis.
Yeah, thanks for the brainstorm -- check out the dedicated Headphone Pitch Shift video I made on my second channel... I attempted to reproduce that theory and wasn't successful, but perhaps my methodology could be better: ruclips.net/video/057QjpY5D38/видео.html
@@CaseyConnor No worries. This is me prior to watching the video in question; I found this a couple minutes ago - perhaps you've gone through this yourself while conducting your own research: hyperphysics.phy-astr.gsu.edu/hbase/Sound/pitch.html I haven't looked into it attentively yet albeit being pretty short. It might put a couple of things into perspective, though.
An effect I noticed is that if you play a well-known melody of a song in all 12 keys simultaneously, with the lowest key being the original, it is still easy to pay attention to the original key of the melody and hear it clearly, even with all the other tones played as well. I don’t know if other people have noticed this, but I certainly have.
Wow, I'll give it a shot. Do you prime yourself with the original first, or come out of the gate with all 12 at once? And are we talking about a single-note melody that is doubled 11 more times?
I was wondering if you had ever thought about celebrating your a-440 down to a 432 which is more of a natural resonance of the Earth. I think the tritone test would make a big difference at a 432 you may find it surprising. From what I understand when things are calibrated a-440 there is a bigger separation in the sound from C to F sharp which causes more dissonance. Sometimes referred to as the devil's interval
Otoacoustic emission ISN'T just me? whenever i'm in a dead empty room (or when i yawn) i hear these extremely specific frequencies that i can't quite explain. i've never taken the time to replicate them but it's not as much of a dial-tone as your example was. i'm not even sure if i know how to replicate the noise because it might not even be coming out of my ears... never heard it in any recordings of mine.
That sounds more likely to be tinnitus; in other words, yours ears aren't making sounds (that other people or microphones could hear) but you perceive sounds that aren't there. But consult a hearing doctor to be sure.
it's usually persistent; you might want to read up on it here: en.wikipedia.org/wiki/Tinnitus ... What you're describing sounds like something apparently referred to as "Sudden Brief Unilateral Tapering Tinnitus".
Sorry to keep bothering you. Have you ever noticed that with your tinnitus if you clench your jaw tightly it seems to get louder. At least it does with me. I shut my jaw really tight and squeeze down and the sound in my head a little bit louder I'm wondering if there was a way to relax those muscles whether that tinnitus would go away completely. Just a thought
That's interesting. I just tried it, but the result was a bit different. The tinnitus is a background tone in my ears, but when I clench my jaw tightly, it seems like a new and louder tone becomes audible, seeming to come from the centre of my head, like it's a mono signal, but the tinnitus is in stereo, and it continues in the background. Is this how it sounds to you? BTW, I used to ride motorcycles, and would use foam earplugs to protect my ears from wind noise, which gets really loud at the higher speeds. Once or twice I tried wax earplugs, which have a fuzzy coating. When I stick them into my ears, external sound is totally cut out, but then my internal sounds become much louder, like footsteps or chewing food. Even my heartbeat can be a bit audible. I only used them once or twice, because when riding my bike, I couldn't hear the engine. so when I accelerated to the wind noise level that I was accustomed to, I was travelling much faster, and the engine was revving 2-3,000 rpm higher than usual. I've read that the same thing happened to car drivers when they get a better handling and/or quieter car. There is a term, "customary level of discomfort". The driver is accustomed to a certain level of discomfort, and if they don't look at the speedometer, they'll find themselves travelling at a higher rate of speed than they intended, just like when I was using wax earplugs on the bike. I haven't tried wax earplugs in the car, but I suspect the the result would be the same.
Hi. I think I found an auditory illusion you didn't cover in your videos. It's called "Van Noorden Ambiguity", about the perceived fission and fusion boundaries of different sounds. When I read about it, I rushed to your channel to hear it but couldn't find it. I couldn't find a way to hear it anywhere. I'm going to read the original thesis and try to recreate the sound, it's dense for me, but I think I can chew it. Reading about it and attempting to recreate it may also be of your interest, references below. I read it first on Designing Sound by Andy Farnell. The original document that describes the sound is Van Noorden, L. P. A. S. (1975). Temporal Coherence in the Perception of Tone Sequences. Unpublished doctoral dissertation, Eindhoven University of Technology, Eindhoven. I didn't post links, but you can easily find the thesis. Thanks for the attention.
Thanks for that! If I make another video I will include that in the list for consideration. I see what you mean -- it's a pretty dense paper that covers a lot of ground, but I'm sure there's an interesting demo or two in there. Good luck with your exploration of it!
LED lights most commonly have a high frequency flicker at twice the fundamental power frequency (60 -> 120 Hz in the US. 50 -> 100 Hz in most countries). This frequency is higher than most peoples visual system respond to. But not everyone. Many of us are EXTREMELY sensitive to this flicker (both in intensity AND separately in color space). This high frequency visual signal impacts the lateral geniculate nucleus in the mod brain. The LGN is responsible for detecting edges in the visual field AND finding motion in coordination with the superior colliculus. This is entirely separate from the formation of images in the visual cortex. It is the second major channel of information coming from the yes to the Brian. It operates independently. When the brain is unable to localize this apparent movement (since the whole visual field is flickering), this creates a problem that the brain identifies as danger. That signal is sent to the precuneus and processed by the default mode network. The ears separately do a similar function using the medial geniculate nucleus in parallel. It seems that when intense high frequency flicker goes on too long - signaling danger to the brain that the brain responds by telling the ears to 'listen more closely' in an attempt to 'find' the danger. That then seems to cause the brain stem to instruct the ears to activate inner hoar cells that were previously turned off, as they had failed. The result is a high frequency subjective tonal tinnitus (circa 7,000-9,000 hertz). It is extremely debilitating. And the net result is that people who suffer this simply cannot be around LED lights at all - ever.
Also, as far as I can tell - there is absolutely no recognition of these problems by industry or government, or medicine. Doctors are clueless. And there is no solution to the problem other than simply never being exposed to any form of LED lighting. And that means only using incandescent lights - which are now hard to get, and never going anywhere with LED lighting. Since all new lighting is LED, that means never going anywhere with lighting.
@@levi_gobin Long story. Personal impacts from the intense blue light AND from the flicker. Tons of research papers on the ~18 different adverse ways that LEDs interact with human physiology, and direct measurement using extremely good analytical equipment.
And additional thing to consider in terms of getting clean playback: for this series you need to listen to the 720p version or better -- the lower-quality streams degrade the audio (including the stereo separation).
Something you haven't mentioned is the effect when listening to a piece of music with a heavy bass through headphones, I can feel that bass in my feet and diaphragm, even though it can't possibly be having that effect for real.
Hah, yeah, that's interesting!
Yes, I've noticed that too! Especially my feet seem to feel the bass while that's impossible.
I'm curious to know what causes this effect.
As an audiophile, one of my favourite features of listening through headphones is feeling the delicate air pressure variations on my ears. Some mixes are far more pronounced than others and feels like the music is intimately dancing with my ears. My most powerful example of this is the intro to Parasite by d:enigma.
I'd be interested to learn more about the correlation of sound, mixing and air pressure so that one day I could create music that dances purposeefully with your ears while you listen. I just don't know where to begin my research.
Have you explored binaural recordings much? Often times that "tickle" of intimate-sounding mixes comes from provocation of our stereo field perception, and there are several popular methods of achieving this with binaural dummy heads, etc. Assuming I'm hearing what you're hearing on that track, that'd be one area I would explore: methods to enhance/modify/play with the stereo field.
@@CaseyConnor I do love a good binaural recording, and hope it continues as a trend in music production (thank you Chesky Records).
I didn't associate that with this piece until you mentioned it, but looking back, it makes sense! As I get into audio production, stereo field is definitely something I'm keen to play with. Thanks for your thoughtful response, Casey.
FINALLY I KNOW WHAT THAT RUMBLING NOISE IS
Oh my God I've spent 20 years feeling like I was crazy, never knowing how to explain what it was. Thank you.
"i percieved something that was if you listened a music very low, you will miss the parts and almost missunderstand the music, but once you know the music, have already listened it loud or know every single detail, once you identify the music it gains quality and you can really perceave the low music with a high quality one"
you can try it like when you listen a music for the fist time and "don't know it" and don't pay attention, if you stop and pick other part in low volume, principally the chorus, you will "miss" parts of the music.
After listening it for a while and listening it in a proper way (quiet rooom, good headphones) you will listen those parts. After you "memorized them" if you play the music anywhere at any wuality you will "hear" it, even if others don't.
i started realizing it more often with a speaker from a car that was missing frequencies on road. I still could listen to some parts and if i asked someone if was there they likely didn't noticed
is pretty awesome
Styrofoam and cardboard, fingernails on chalkboard - both examples of stick-slip phenomena between interfaces. Happening quickly at a high frequency - maybe like cacophony or a crying baby (which scientists say we seem to be programmed to respond to from the gut).
This was an insanely great series to binge. I'm so glad to have found your channel! Great to put a face to the voice as well. Kinda goes with the theme 😜
Ref. yawning and pitch perception:
I don't really hear any significant pitch change when yawning. However, when listening to music with distinct rhythm or beat or any rhythmic sound, when I yawn, the tempo appears to rise quite significantly!
I can also replicate this effect by opening my mouth wide, tightening the muscles in my jaw and throat - basically mimicking all physiological phenomena that takes place when yawning - and again the tempo goes up. The effect is so strong, that I can keep on counting the changed beat in my mind right after the "yawning" stopped - or tapping my finger or even voicing it - and then can hear myself the difference to the original music still playing and the beat I count. The difference is surprisingly large, perhaps 10-20%.
(By "counting" I do not mean counting 1,2,3,4.. but repeating e.g. the drum beat mentally, tapping finger or by making a rhythmic sound with my mouth - not unlike beatboxing.)
No you have any information of such phenomena?
Fascinating; no, I've never heard of that. Doesn't happen for me (although there are strange sensations relating to time that happen for me when I yawn... there is a sort of disorienting shift in how time "feels", if that makes sense, but it doesn't translate to a change in tempo perception for me.) I haven't in general seen much in the way of psychoacoustic research relating to tempo perception, but I'm no expert. It strikes me as something that would be pretty challenging to study... maybe that's why? If others have experienced this I hope they'll chime in.
@@CaseyConnor The way you describe your sensation, it sounds somewhat similar to what I experience. It may just be that I have always been "a drummer" - I always listen the beat/rhythm first. (I also love disco/dance/industrial music where the beat is a major factor.) So this may explain why I pay attention to the perceived change in rhythm, and not so much to the other, simultaneous effects of tightening the throat and jaw muscles.
@@toweri_li I should also note that I have a rough sense of time (working on it!) so maybe that plays into this as well.
Excellent series, well done. The missing fundamental effect was well exploited by Motown engineers who popularized bass lines heard mostly on 1/4 watt transistor radios with 2" speakers incapable of reproducing the fundamentals.
Nice, thanks for extending the series! Really looking forward to watching these
One effect I get is while wearing good ear bud type of headphones and really deep bass with the low rumbling, I can feel the rumble in my chest and lower notes it feels like the ground is rumbling. I thought is was my neighbor pulling up with his sound on . This house has hardwood floors suspended 3 feet so I'm used to feeling every sound I hear. Even my hands feel it. As I sit here and think about how bass buzzes I can feel it through the chair and the ground matching the music I'm listening to, didn't know I could do that. Great Videos.
That's a neat effect. I'll keep an ear (and nervous system) out for it next time I'm listening to bassy stuff on headphones...
@@CaseyConnor I've got a big room that's an add on and It's all wood. The walls and ceiling are tounge and groove cedar. When those thumping steros drive by everything vibrates.
Interesting video series, I was secretly hoping you'd include the brown note.
Casey, much appreciation for your acoustic and music-related videos. I've pointed friends to your videos often!
I love this channel!
As an autistic, horrible sounds are pretty much only way i can explain sensory sensitivities. Neurotypicals hate knife on porcelain sound; I hate touching cotton balls. It makes me want to cut off my hand.
Interesting... makes you wonder if it's the same pathway in the brain and for whatever reason in autistic individuals it keys into other inputs.
Testernas : The Illutions Is Working Sometimes , And Sometimes Not ...
When you are mentioning the tritone in your other video I was a little bit confused because I knew what it was supposed to sound like but it didn't sound like that at all. I'm glad that you clarified that. Also when you were just talking about you were going to play it, my mind envisioned what the first note was going to sound like and what the S note was going to sound like and I was pleasantly surprised when you played the tone that they were exactly the notes I was thinking about and could hear in my mind. Interesting
I was also wondering as far as tinnitus, whether if person with tinnitus could analyze the frequency close enough if there was some way that that frequency could be put to a headphone into their ear and made to be somehow out-of-phase from The Sound their hearing in their head which would cancel the sound altogether. I've been thinking about that for years but this the first time I've ever told anybody about it. If there's some way you can replicate that or test that I would certainly share whatever profit could be made off from it with you LOL
Enjoyed your series. Being a musician for over 50 years means I was aware of most. But one you missed! Take a drum beat, like for a surf tune, and slightly loud in headphones. Slowly remove the phones while listening and the beat seems to speed up a lot!
Yeah, interesting... one or two people have commented about changes in tempo with headphone removal, or at different times of the day, etc... I haven't heard it myself yet but I'll definitely keep an ear out!
If its that wooshing sound you also get directly before yawning, yes then i know that and can trigeer it.
My sister and I CAN NOT stand the sound of other people crunching to the point that we get mad. I just realized that it is only when certain people crunch. I think it is how the sound resonates in the skull.
You might wikipedia "misophonia". I am the same way sometimes. :-)
Literally even just thinking about the sound of someone's hand scraping across a sleeping bag makes my whole body all tingly with the cringe. That's my most hated sound. Lol
for the consonance calibration effect, Olivier Messiaen used it in his piano solo, La Colombe, check at 1:44, 2 melodic lines in semitone playing in octaves, but sounds ok. ruclips.net/video/z2pwTP7g7xE/видео.html
Yeah, neat, thanks!
Do you know about Patrick Flanagan's Neurophone, apparently it gives one a wider frequency span of sound perception than the normal. Also I recommend the work of Manfred Clynes, which can be found in his book "Sentics the Touch of the Emotions" also rexresearch has some papers of his of interest, also Flanagan's.
Sometimes i can like i guess you could say its like a muscle in my ear that I tighten i dont know how to explain. It makes a double click with a low bum in the background. It makes hearing harder but sounds i make are amplified so i guess thats my voluntary control of acoustic reflex ive done it since i was 6
reposting as i saw a year gap between videos hahahah
-other thing i am paying attention (is more on the brain education level (neurological) than ear by itself) is that
when you listened a music once, you can probably don't like it on a show, but if everytime you listened the opening or ending and it have the same music, you will start to like it.
i saw this fenomenon with anime and tv shows, at start you can say "its bad", doesn't fit properly or "the one from last season was better", but once you get used to it and (it is a good show so you enjoy viewing it) you will likely blend the emotion of beeing a good thing with the music and will consider the music as good. It can happened on parties too as you can record a good emotion or good memory and record something with it.(like the flash and beep sound) it is used to train you brain
in a dificcult cenario "if you cry, snap your fingers", if you do this every time, one day you snap your fingers and will cry with no reason. your brain got used to one be coorelated to the other and if one is present, it thinks the other will be there soon".
It can extend to traumas and other things, but i have to say, is just me saying and observing. It is not a scientific research done by me! But others have studied, if you are intrested go after them, don't pick just my word and use it for life :)
The AirPods max have absolutely zero cross folk! I was amazed!
Yeah I should have maybe mentioned that wireless earbuds are likely to have no crosstalk since it's a digital signal being sent to each earbud. As long as none of the "enhancement" stuff is on, they should be good to go. Unfortunately a lot of wireless headphones and earbuds do have that kind of stuff turned on by default.
finally. using a balanced cable finally had a use lmfao
I don’t know if anyone else has mentioned this so far, but what about ASMR?
Yeah it seems like i should have mentioned that somewhere. I think subconsciously i just assumed the topic was so well covered already, and i don't really have much to add, but it's definitely an important psychoacoustic thing. Maybe in a future video...
The rumbling sound you mentioned i dont think is actually the tiny muscle I dont think. When I move or contract my lil muscle inside, it feels like a pressure deep inside my ear canal, followed by a really short, around 3 seconds of 10db or so of quiet, its rather interesting too, and that rumbling sound? I can do that too whenever i feel like it and i find it neat.
Ding ding iiia ding ding
Hey Casey
Could you please explain the effect when listening to some music sends a shiver all over you body and some music doesn't.? Is this the same effect on the chaulk board but tonal resonance?
Hmmm, not sure I even know the effect you're speaking of... I've had the experience of goosebumps when listening, for reasons of psychological enjoyment, but if you're talking about a more physical response I'm afraid I don't know anything about it...
I think the "chalkboard scraping" effect on people is called misophonia. In my case, I get it when I hear the sound of rubber, like that of a balloon (inflated or not), making a screeching sound as it rubs on other objects (the pitch can vary widely and still be an issue). It gives my teeth the sense that I'm chewing a balloon and gives me chills down my spine. I used to deal with it by widening my tongue and biting down with my molars to dampen the resonance, but I've slowly been retraining myself to not be adversely affected by it, changing my mindset to treat it like ASMR, and I'm not as averse to it, at least after I give myself a moment to get past the initial sensation. Using a squeegee to wipe my glass shower panels used to be barely tolerable (the sound plus the vibration of the rubber while holding the shaft), but now it hardly affects me, as I barely give it any attention. Mind over matter.
For a purely tactile "chalkboard scraping" effect try (carefully) rubbing two old fashioned incandescent glass light bulbs together. It makes very little sound but the feel of it is nauseating to me. I think my brain interprets the glass rubbing as a version of the teeth or bone grinding effect.
I noticed when I played back bars and tone on a VTR, the solid tone varies in pitch when I'm chewing on something ....am I alone?
There is research suggesting that the pressure of the cochlear fluid in the inner ear can affect pitch perception, so I tend to ascribe these effects to that phenomenon, but I'm not sure.
I still did not hear the binaural beats despite my headphones having near-perfect channel separation, video quality being high, and there being no sound correction enabled. Note to self: don’t add a single voice without listening in mono from now on
Interesting. You may well just be one of the people that don't hear them, then.
Not sure if this has been stated in the last two follow-up videos of yours regarding these topics, but I sometimes feel like the pitch of the track that I am jamming / listening to minutely increases by a few cents (maybe half a semitone) in loud volumes, only for it to decrease back to its original state when I dial the volume down to normal listening levels to rest my ears. That's when I mostly notice the effect taking place, though my perception of the tone of the song will still increase if I raise the dial up again, maybe by, again, 50 cents.
I have only experienced this when using headphones (closed-back) and in volumes @ ~80 decibels.
I suspect this might have the same roots as the Headphone Pitch-Shift Effect that you described in part 5 of the series, as in both cases the pressure that your ears receive decreases quite rapidly (whether you turn the volume back down or take your headphones off and to the front of your head). Just a fun hypothesis.
Yeah, thanks for the brainstorm -- check out the dedicated Headphone Pitch Shift video I made on my second channel... I attempted to reproduce that theory and wasn't successful, but perhaps my methodology could be better: ruclips.net/video/057QjpY5D38/видео.html
@@CaseyConnor No worries.
This is me prior to watching the video in question; I found this a couple minutes ago - perhaps you've gone through this yourself while conducting your own research: hyperphysics.phy-astr.gsu.edu/hbase/Sound/pitch.html
I haven't looked into it attentively yet albeit being pretty short. It might put a couple of things into perspective, though.
An effect I noticed is that if you play a well-known melody of a song in all 12 keys simultaneously, with the lowest key being the original, it is still easy to pay attention to the original key of the melody and hear it clearly, even with all the other tones played as well. I don’t know if other people have noticed this, but I certainly have.
Wow, I'll give it a shot. Do you prime yourself with the original first, or come out of the gate with all 12 at once? And are we talking about a single-note melody that is doubled 11 more times?
The second tone is higher
I was wondering if you had ever thought about celebrating your a-440 down to a 432 which is more of a natural resonance of the Earth. I think the tritone test would make a big difference at a 432 you may find it surprising. From what I understand when things are calibrated a-440 there is a bigger separation in the sound from C to F sharp which causes more dissonance. Sometimes referred to as the devil's interval
Otoacoustic emission ISN'T just me? whenever i'm in a dead empty room (or when i yawn) i hear these extremely specific frequencies that i can't quite explain. i've never taken the time to replicate them but it's not as much of a dial-tone as your example was. i'm not even sure if i know how to replicate the noise because it might not even be coming out of my ears... never heard it in any recordings of mine.
That sounds more likely to be tinnitus; in other words, yours ears aren't making sounds (that other people or microphones could hear) but you perceive sounds that aren't there. But consult a hearing doctor to be sure.
no, it’s different, tinnitus is a frequency that comes in, mutes other sounds, (usually in one ear) and goes away after an amount of time
it's usually persistent; you might want to read up on it here: en.wikipedia.org/wiki/Tinnitus ... What you're describing sounds like something apparently referred to as "Sudden Brief Unilateral Tapering Tinnitus".
(The yawn-based sounds you hear may be induced by changes in the pressure of the cochlear fluid, but that's just a guess.)
Sorry to keep bothering you. Have you ever noticed that with your tinnitus if you clench your jaw tightly it seems to get louder. At least it does with me. I shut my jaw really tight and squeeze down and the sound in my head a little bit louder I'm wondering if there was a way to relax those muscles whether that tinnitus would go away completely. Just a thought
I don’t think so. When you do that, your probably just hearing the muscles near your ear which may or may not be related to your tinnitus.
That's interesting. I just tried it, but the result was a bit different. The tinnitus is a background tone in my ears, but when I clench my jaw tightly, it seems like a new and louder tone becomes audible, seeming to come from the centre of my head, like it's a mono signal, but the tinnitus is in stereo, and it continues in the background. Is this how it sounds to you?
BTW, I used to ride motorcycles, and would use foam earplugs to protect my ears from wind noise, which gets really loud at the higher speeds. Once or twice I tried wax earplugs, which have a fuzzy coating. When I stick them into my ears, external sound is totally cut out, but then my internal sounds become much louder, like footsteps or chewing food. Even my heartbeat can be a bit audible. I only used them once or twice, because when riding my bike, I couldn't hear the engine. so when I accelerated to the wind noise level that I was accustomed to, I was travelling much faster, and the engine was revving 2-3,000 rpm higher than usual. I've read that the same thing happened to car drivers when they get a better handling and/or quieter car. There is a term, "customary level of discomfort". The driver is accustomed to a certain level of discomfort, and if they don't look at the speedometer, they'll find themselves travelling at a higher rate of speed than they intended, just like when I was using wax earplugs on the bike. I haven't tried wax earplugs in the car, but I suspect the the result would be the same.
Hi. I think I found an auditory illusion you didn't cover in your videos. It's called "Van Noorden Ambiguity", about the perceived fission and fusion boundaries of different sounds. When I read about it, I rushed to your channel to hear it but couldn't find it. I couldn't find a way to hear it anywhere. I'm going to read the original thesis and try to recreate the sound, it's dense for me, but I think I can chew it. Reading about it and attempting to recreate it may also be of your interest, references below.
I read it first on Designing Sound by Andy Farnell. The original document that describes the sound is Van Noorden, L. P. A. S. (1975). Temporal Coherence in the Perception of Tone Sequences. Unpublished doctoral dissertation, Eindhoven University of Technology, Eindhoven. I didn't post links, but you can easily find the thesis.
Thanks for the attention.
Thanks for that! If I make another video I will include that in the list for consideration. I see what you mean -- it's a pretty dense paper that covers a lot of ground, but I'm sure there's an interesting demo or two in there. Good luck with your exploration of it!
LED lights most commonly have a high frequency flicker at twice the fundamental power frequency (60 -> 120 Hz in the US. 50 -> 100 Hz in most countries). This frequency is higher than most peoples visual system respond to. But not everyone. Many of us are EXTREMELY sensitive to this flicker (both in intensity AND separately in color space). This high frequency visual signal impacts the lateral geniculate nucleus in the mod brain. The LGN is responsible for detecting edges in the visual field AND finding motion in coordination with the superior colliculus. This is entirely separate from the formation of images in the visual cortex. It is the second major channel of information coming from the yes to the Brian. It operates independently. When the brain is unable to localize this apparent movement (since the whole visual field is flickering), this creates a problem that the brain identifies as danger. That signal is sent to the precuneus and processed by the default mode network. The ears separately do a similar function using the medial geniculate nucleus in parallel. It seems that when intense high frequency flicker goes on too long - signaling danger to the brain that the brain responds by telling the ears to 'listen more closely' in an attempt to 'find' the danger. That then seems to cause the brain stem to instruct the ears to activate inner hoar cells that were previously turned off, as they had failed. The result is a high frequency subjective tonal tinnitus (circa 7,000-9,000 hertz). It is extremely debilitating. And the net result is that people who suffer this simply cannot be around LED lights at all - ever.
Also, as far as I can tell - there is absolutely no recognition of these problems by industry or government, or medicine. Doctors are clueless. And there is no solution to the problem other than simply never being exposed to any form of LED lighting. And that means only using incandescent lights - which are now hard to get, and never going anywhere with LED lighting. Since all new lighting is LED, that means never going anywhere with lighting.
And yes. It is that severe.
Where did you find this information? I would like to read up about it some more.
@@levi_gobin Long story. Personal impacts from the intense blue light AND from the flicker. Tons of research papers on the ~18 different adverse ways that LEDs interact with human physiology, and direct measurement using extremely good analytical equipment.
@@tunneloflight I would really like to know as much as I can about it, so send whatever you can find. or tell me where I can find it myself.
TIL my headphones have crosstalk.
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