If we could only hear ultrasound then what would the world sound like?

Rumbly

human’s very likely wouldn’t have evolved, if it’s a we of the sprecies proposition

otherwise of down conversion and filtering via hearing aid, well it’s probably an experiment that can be done, and probably has been done.

>>>human’s very likely wouldn’t have evolved, if it’s a we of the sprecies proposition

What is your problem with we?

pronoun: we

1. used by a speaker to refer to himself or herself and one or more other people considered together.

transition said:

human’s very likely wouldn’t have evolved

I can’t see any justification for the proposition that evolution of humans was dependent on hearing being in a specific frequency range myself.

The Rev Dodgson said:

transition said:

human’s very likely wouldn’t have evolved

I can’t see any justification for the proposition that evolution of humans was dependent on hearing being in a specific frequency range myself.

The proposal does appear to be batty.

The Rev Dodgson said:

transition said:

human’s very likely wouldn’t have evolved

I can’t see any justification for the proposition that evolution of humans was dependent on hearing being in a specific frequency range myself.

well, it’s a range of frequencies.

I think it’s safe proposition

Many species have evolved with different sets of perceptions and different ranges of perception across visual range, auditory range, smelling range, feeling range and tasting range

so to say a species would not evolve because of different range of hearing is an erroneous assumption

the logic is not right

>so to say a species would not evolve because of different range of hearing is an erroneous assumption
the logic is not right

you think evolution works from (something like) human logic?

you wouldn’t exist if it wasn’t for the character of the range of frequencies of hearing of humans and their ancestors, no question.

The Rev Dodgson said:

transition said:

human’s very likely wouldn’t have evolved

I can’t see any justification for the proposition that evolution of humans was dependent on hearing being in a specific frequency range myself.

So we wouldn’t have able to hear the noises made by any of the large African predators or general sounds made by other humans, not to mention the drums, the drums…

transition said:

>you wouldn’t exist if it wasn’t for the character of the range of frequencies of hearing of humans and their ancestors, no question.

No-one has suggested that Crazy Neutrino would exist if the range of hearing was different. If history was different then every individual would be different.

The question is, if the proto-humans had had a different range of hearing, could they have evolved into a species with human-like qualities in everything other than hearing range?

I don’t see any reason why not (and so far you haven’t presented any reasons).

Ian said:

The Rev Dodgson said:

transition said:

human’s very likely wouldn’t have evolved

I can’t see any justification for the proposition that evolution of humans was dependent on hearing being in a specific frequency range myself.

So we wouldn’t have able to hear the noises made by any of the large African predators or general sounds made by other humans, not to mention the drums, the drums…

Those drums never end do they

Ian said:

The Rev Dodgson said:

transition said:

human’s very likely wouldn’t have evolved

I can’t see any justification for the proposition that evolution of humans was dependent on hearing being in a specific frequency range myself.

So we wouldn’t have able to hear the noises made by any of the large African predators or general sounds made by other humans, not to mention the drums, the drums…

We’d hear a different range of the sounds they make.

The Rev Dodgson said:

transition said:

>you wouldn’t exist if it wasn’t for the character of the range of frequencies of hearing of humans and their ancestors, no question.

No-one has suggested that Crazy Neutrino would exist if the range of hearing was different. If history was different then every individual would be different.

The question is, if the proto-humans had had a different range of hearing, could they have evolved into a species with human-like qualities in everything other than hearing range?

I don’t see any reason why not (and so far you haven’t presented any reasons).

Culture might be somewhat different as musical instruments, tribal dancing, etc might not be created.

transition said:

>so to say a species would not evolve because of different range of hearing is an erroneous assumption
the logic is not right

you think evolution works from (something like) human logic?

you wouldn’t exist if it wasn’t for the character of the range of frequencies of hearing of humans and their ancestors, no question.

you think evolution works from (something like) human logic?

Logic comes from Nature just as mathematics and other repeatable observations defined in laws of physics

to say evolution works from human logic is flawed,

Its Logic that guides Nature

>.>>
>>>you wouldn’t exist if it wasn’t for the character of the range of frequencies of hearing of humans and their ancestors, no question.

a different hearing range would not stop sexual reproduction

again your logic is flawed

There are Many species that have evolved with different sets of perceptions and different ranges of perception

this is a set of perceptions

each one has a range

visual
auditory
smelling
feeling
tasting

and to repeat again

so to say a species would not evolve because of a different range of “Perception” is making an erroneous assumption, its wrongful logic, your making a wrongful observation

your know that dogs have a different range of smell and they have different vision so they have a different set of perceptions to Humans

As well as different perceptions each species has a different set and range of sexual types as well heterosexual, bisexual, homosexual, Transsexual and Asexual

Nature does fit in with your observations

The Rev Dodgson said:

Ian said:

The Rev Dodgson said:

I can’t see any justification for the proposition that evolution of humans was dependent on hearing being in a specific frequency range myself.

So we wouldn’t have able to hear the noises made by any of the large African predators or general sounds made by other humans, not to mention the drums, the drums…

We’d hear a different range of the sounds they make.

Like the squeak of the approaching lion?

I think evolution has given rise to a wide dynamic range optimal to survival.

The Rev Dodgson said:

transition said:

>you wouldn’t exist if it wasn’t for the character of the range of frequencies of hearing of humans and their ancestors, no question.

No-one has suggested that Crazy Neutrino would exist if the range of hearing was different. If history was different then every individual would be different.

The question is, if the proto-humans had had a different range of hearing, could they have evolved into a species with human-like qualities in everything other than hearing range?

I don’t see any reason why not (and so far you haven’t presented any reasons).

as I put it (or meant), it was of would what characterizes modern humans have evolved if hearing that is to us untrasonic was not, that hearing was in a higher frequency range?. No hearing frequency response range was suggested in the OP.

take one thing, the size of the throat, larynx etc, these influence the frequencies of vocalizations, and hearing.

another thing is the frequencies in stuff that happens around us (energy distribution/density across the spectrum, of the conversion), like a branch breaking under your feet, waves, wind, sound of feet walking on the ground.

there’re sound frequency propagation factors too. Through air, in windy conditions, around whatever. That sort of thing.

you’ve shifted to human-like too, i’ll leave you to define that.

No hearing frequency response range was suggested in the OP.

———-

I take it that hearing only ultrasound is implied.. frequencies from 20 kHz up to several gigahertz.

Ian said:

No hearing frequency response range was suggested in the OP.

———-

I take it that hearing only ultrasound is implied.. frequencies from 20 kHz up to several gigahertz.

dunno

heartbeat to a fetus is going to be different, hearing other’s breathing’s going to be different.
domestication of animals is going to be different.
hearing approaching thunderstorms is going to be different.

I can’t see much of humans existing as they are.

from

http://hyperphysics.phy-astr.gsu.edu/hbase/Sound/usound.html

Ultrasonic Sound

The term “ultrasonic” applied to sound refers to anything above the frequencies of audible sound, and nominally includes anything over 20,000 Hz. Frequencies used for medical diagnostic ultrasound scans extend to 10 MHz and beyond.

Sounds in the range 20-100kHz are commonly used for communication and navigation by bats, dolphins, and some other species. Much higher frequencies, in the range 1-20 MHz, are used for medical ultrasound. Such sounds are produced by ultrasonic transducers. A wide variety of medical diagnostic applications use both the echo time and the Doppler shift of the reflected sounds to measure the distance to internal organs and structures and the speed of movement of those structures. Typical is the echocardiogram, in which a moving image of the heart’s action is produced in video form with false colors to indicate the speed and direction of blood flow and heart valve movements. Ultrasound imaging near the surface of the body is capable of resolutions less than a millimeter. The resolution decreases with the depth of penetration since lower frequencies must be used (the attenuation of the waves in tissue goes up with increasing frequency.) The use of longer wavelengths implies lower resolution since the maximum resolution of any imaging process is proportional to the wavelength of the imaging wave.

from

http://hyperphysics.phy-astr.gsu.edu/hbase/Sound/usound.html

Bats and Ultrasound

Bats use ultrasonic sound for navigation. Their ability to catch flying insects while flying full speed in pitch darkness is astounding. Their sophisticated echolocation permits them to distinguish between a moth (supper) and a falling leaf.

About 800 species of bats grouped into 17 families. The ultrasonic signals utilized by these bats fall into three main categories. 1. short clicks, 2. Frequency-swept pulses, and 3. constant frequency pulses. There are two suborders, Megachiroptera and Microchiroptera. Megas use short clicks, Micros use the other two. Tongue clicks produce click pairs separated by about 30ms, with 140-430 ms between pairs. (Sales and Pye, Ultrasonic Communication by Animals). 10-60 kHz in frequency swept clicks. One kind of bat, the verspertilionidae, have frequency swept pulses 78 kHz to 39 kHz in 2.3 ms. Emits pulses 8 to 15 times a second, but can increase to 150-200/s when there is a tricky maneuver to be made.

from

http://hyperphysics.phy-astr.gsu.edu/hbase/Sound/usound.html

Cetacean Sound

Orcas produce a wide variety of clicks, whistles and pulsed calls. They vary in frequency from 1 to 25 kHz. Individual pods of whales have their own distinctive dialect of calls, similar to songbirds. Some such calls are known to be stable over a period of 10 years. Humpback whales produce a variety of moans, snores, and groans that are repeated to form what we might call songs. The frequency of these songs range from about 40 Hz to 5 kHz. Singing whales are usually solitary males who exhibit it in a shallow smooth-bottomed area where sound propagates well. They are interpreted as territorial and mating calls. Whales are also known to produce some very intense low frequency sounds which they may use to stun or disorient small fish for prey. Bottlenose dolphins produce sounds in the range 7 to 15 kHz which are continuously variable in pitch. In addition, they produce short burst from 20 to 170 kHz, presumably for better echolocation.

A dolphin’s clicks come from small knobs near its blowhole. There are no vocal cords.

from

https://en.wikipedia.org/wiki/Ultrasound

Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is no different from ‘normal’ (audible) sound in its physical properties, except in that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy, young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz.

Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning, mixing, and to accelerate chemical processes. Animals such as bats and porpoises use ultrasound for locating prey and obstacles. Scientist are also studying ultrasound using graphene diaphragms as a method of communication..

More…

from https://en.wikipedia.org/wiki/Ultrasound

Perception

Humans

The upper frequency limit in humans (approximately 20 kHz) is due to limitations of the middle ear. Auditory sensation can occur if high-intensity ultrasound is fed directly into the human skull and reaches the cochlea through bone conduction, without passing through the middle ear.

Children can hear some high-pitched sounds that older adults cannot hear, because in humans the upper limit pitch of hearing tends to decrease with age. An American cell phone company has used this to create ring signals supposedly only able to be heard by younger humans; but many older people can hear the signals, which may be because of the considerable variation of age-related deterioration in the upper hearing threshold. The Mosquito is an electronic device that uses a high pitched frequency to deter loitering by young people.

> No hearing frequency response range was suggested in the OP.

Normal human is 31 Hz to 19 kHz.
Little brown bat is 10.3 kHz to 115 kHz.
Some dolphins up to 150 kHz.

Let’s say I’m asking about ultrasound frequency range 15 kHz to 1500 kHz.

from
http://www.electroschematics.com/3864/ultrasound-and-insects/

What is the relation between (US) Ultrasound and animals?

Even though human ear cannot sense US, many animals can produce and hear US. Many insects, rodents, bats and small mammals communicate through US. Insects have sensory structures to produce and detect ultrasound. Cockroaches have “Sensory hairs” to sense US. Spiders, Wasps, Beetles, Flies etc have a “Tympanic membrane” to detect US. Fleas communicate using high frequency US . Male Mosquitoes produce US to attract females. Female mosquitoes have sensory structures to receive US. Spiders, lizards also have ability to sense US.

How does US affect animals?

The US sensors are present in the antennae of Mosquitoes and genetalia of Cockroaches. US emitted by the Repeller will scare away the pests and confuse them. Ultrasonic sound will create stress on the nervous system of insects and jam their own US frequency. This will immobilize the insects and they escape from the source of US.

Response of Animals to Ultrasound

22-25 kHz: Dogs, Cats 38-44 kHz: Mosquitoes, Fleas, House Fly, Spiders, Cockroaches 52-60 kHz: Lizards 60-72 kHz: Rats

http://www.electroschematics.com/3864/ultrasound-and-insects/

US is biologically safe to human beings as per scientific information. But US frequency close to 30 kHz can be sensed by children to a certain level. So it is recommended not to use such devices continuously near the children below 5 years.

http://www.electroschematics.com/3864/ultrasound-and-insects/

What is the relation between (US) Ultrasound and animals?

Even though human ear cannot sense US, many animals can produce and hear US. Many insects, rodents, bats and small mammals communicate through US. Insects have sensory structures to produce and detect ultrasound. Cockroaches have “Sensory hairs” to sense US. Spiders, Wasps, Beetles, Flies etc have a “Tympanic membrane” to detect US. Fleas communicate using high frequency US . Male Mosquitoes produce US to attract females. Female mosquitoes have sensory structures to receive US. Spiders, lizards also have ability to sense US.

CrazyNeutrino said:

http://www.electroschematics.com/3864/ultrasound-and-insects/

What is the relation between (US) Ultrasound and animals?

Even though human ear cannot sense US, many animals can produce and hear US. Many insects, rodents, bats and small mammals communicate through US. Insects have sensory structures to produce and detect ultrasound. Cockroaches have “Sensory hairs” to sense US. Spiders, Wasps, Beetles, Flies etc have a “Tympanic membrane” to detect US. Fleas communicate using high frequency US . Male Mosquitoes produce US to attract females. Female mosquitoes have sensory structures to receive US. Spiders, lizards also have ability to sense US.

It would be interesting to test if any animals produce ultra sound even though they hear below ultra sound

CrazyNeutrino said:

CrazyNeutrino said:

http://www.electroschematics.com/3864/ultrasound-and-insects/

What is the relation between (US) Ultrasound and animals?

Even though human ear cannot sense US, many animals can produce and hear US. Many insects, rodents, bats and small mammals communicate through US. Insects have sensory structures to produce and detect ultrasound. Cockroaches have “Sensory hairs” to sense US. Spiders, Wasps, Beetles, Flies etc have a “Tympanic membrane” to detect US. Fleas communicate using high frequency US . Male Mosquitoes produce US to attract females. Female mosquitoes have sensory structures to receive US. Spiders, lizards also have ability to sense US.

It would be interesting to test if any animals produce ultra sound even though they hear below ultra sound

We all produce ultrasound.

dv said:

Rumbly

that would be for sounds lower than 100 hertz

highly pitched ultrasonic sounds would be at high vibration

dv said:

CrazyNeutrino said:

CrazyNeutrino said:

http://www.electroschematics.com/3864/ultrasound-and-insects/

What is the relation between (US) Ultrasound and animals?

Even though human ear cannot sense US, many animals can produce and hear US. Many insects, rodents, bats and small mammals communicate through US. Insects have sensory structures to produce and detect ultrasound. Cockroaches have “Sensory hairs” to sense US. Spiders, Wasps, Beetles, Flies etc have a “Tympanic membrane” to detect US. Fleas communicate using high frequency US . Male Mosquitoes produce US to attract females. Female mosquitoes have sensory structures to receive US. Spiders, lizards also have ability to sense US.

It would be interesting to test if any animals produce ultra sound even though they hear below ultra sound

We all produce ultrasound.

Blood running through eardrums

many people can hear that some cannot

That would drive you bats!

http://www.ktu.lt/ultra/journal/pdf_50_1/50-2004-Vol.1_09-A.Vladisauskas.pdf

I reckon that by definition, ultrasonic hearing is not possible.
Doesn’t ultrasonic mean beyond hearing range? So no matter what frequency you can hear anything outside of that range is ultrasonic.

gaghalfrunt said:

I reckon that by definition, ultrasonic hearing is not possible.
Doesn’t ultrasonic mean beyond hearing range? So no matter what frequency you can hear anything outside of that range is ultrasonic.

Or subsonic.

Does smell and taste use vibration in detection?

I would like to know how vision, audio and feeling which all use the frequency spectrum are different

how do different frequencies which all use the frequency spectrum relate to all the perceptions

CrazyNeutrino said:

Does smell and taste use vibration in detection?

no

dv said:

CrazyNeutrino said:

Does smell and taste use vibration in detection?

no

the brain at some point converts it into electrical energy

CrazyNeutrino said:

dv said:

CrazyNeutrino said:

Does smell and taste use vibration in detection?

no

the brain at some point converts it into electrical energy

And if your nose runs and your feet smell, then you are built upside down.

Where do brainwaves start?

.5hz to 42 hz

not ultrasonic

Ultrasonic hearing in humans

https://en.wikipedia.org/wiki/Ultrasound

The upper frequency limit in humans (approximately 20 kHz) is due to limitations of the middle ear. Auditory sensation can occur if high-intensity ultrasound is fed directly into the human skull and reaches the cochlea through bone conduction, without passing through the middle ear.

https://en.wikipedia.org/wiki/Ultrasonic_hearing

Ultrasonic hearing is a recognised auditory effect which allows humans to perceive sounds of a much higher frequency than would ordinarily be audible using the physical inner ear, usually by stimulation of the base of the cochlea through bone conduction. Human hearing is recognised as having an upper bound around 17-20 kHz, depending on the person, but ultrasonic sinusoids as high as 120 kHz have been reported as successfully perceived.

Two competing theories are proposed to explain this effect. The first asserts that ultrasonic sounds excite the inner hair cells of the cochlea basal turn, which are responsive to high frequency sounds. The second proposes that ultrasonic signals resonate the brain and are modulated down to frequencies that the cochlea can then detect.

Researchers Tsutomu Oohashi et al. have coined the term hypersonic effect to describe the results of their controversial study supporting audibility of ultrasonics.

By modulating speech signals onto an ultrasonic carrier, intelligible speech has also been perceived with a high degree of clarity, especially in areas of high ambient noise. Deatherage states that what humans experience as ultrasonic perception may have been a necessary precursor in the evolution of echolocation in marine mammals.

CrazyNeutrino said:

By modulating speech signals onto an ultrasonic carrier, intelligible speech has also been perceived with a high degree of clarity, especially in areas of high ambient noise. Deatherage states that what humans experience as ultrasonic perception may have been a necessary precursor in the evolution of echolocation in marine mammals.

That’s interesting as they had a blind man on World’s Weirdest Shit last night who used echolocation to navigate.

https://en.wikipedia.org/wiki/Human_echolocation

https://en.wikipedia.org/wiki/Daniel_Kish

This is the guy

Cymek said:

CrazyNeutrino said:

By modulating speech signals onto an ultrasonic carrier, intelligible speech has also been perceived with a high degree of clarity, especially in areas of high ambient noise. Deatherage states that what humans experience as ultrasonic perception may have been a necessary precursor in the evolution of echolocation in marine mammals.

That’s interesting as they had a blind man on World’s Weirdest Shit last night who used echolocation to navigate.

https://en.wikipedia.org/wiki/Human_echolocation

Yes, its very interesting

Human echolocation is the ability of humans to detect objects in their environment by sensing echoes from those objects, by actively creating sounds – for example, by tapping their canes, lightly stomping their foot, snapping their fingers, or making clicking noises with their mouths – people trained to orient by echolocation can interpret the sound waves reflected by nearby objects, accurately identifying their location and size. This ability is used by some blind people for acoustic wayfinding, or navigating within their environment using auditory rather than visual cues. It is similar in principle to active sonar and to animal echolocation, which is employed by bats, dolphins and toothed whales to find prey.

by lacking a sensory perception another was developed in its place

CrazyNeutrino said:

Cymek said:

CrazyNeutrino said:

By modulating speech signals onto an ultrasonic carrier, intelligible speech has also been perceived with a high degree of clarity, especially in areas of high ambient noise. Deatherage states that what humans experience as ultrasonic perception may have been a necessary precursor in the evolution of echolocation in marine mammals.

That’s interesting as they had a blind man on World’s Weirdest Shit last night who used echolocation to navigate.

https://en.wikipedia.org/wiki/Human_echolocation

Yes, its very interesting

Human echolocation is the ability of humans to detect objects in their environment by sensing echoes from those objects, by actively creating sounds – for example, by tapping their canes, lightly stomping their foot, snapping their fingers, or making clicking noises with their mouths – people trained to orient by echolocation can interpret the sound waves reflected by nearby objects, accurately identifying their location and size. This ability is used by some blind people for acoustic wayfinding, or navigating within their environment using auditory rather than visual cues. It is similar in principle to active sonar and to animal echolocation, which is employed by bats, dolphins and toothed whales to find prey.

by lacking a sensory perception another was developed in its place

The hearing perception was enhanced for hearing reflections

What are Brainwaves?

interesting article

mollwollfumble said:

> No hearing frequency response range was suggested in the OP.

Normal human is 31 Hz to 19 kHz.
Little brown bat is 10.3 kHz to 115 kHz.
Some dolphins up to 150 kHz.

Let’s say I’m asking about ultrasound frequency range 15 kHz to 1500 kHz.

what’s that ~6.5 octaves

see the chap Tim Storms holds the record for vocals, down to .7973 Hz officially (10 octave span), and, though not in the Guinness World Records, down to .189 Hz (12 octaves)

https://en.wikipedia.org/wiki/Tim_Storms

Some humans can hear up to 120khz far above the 20 khz limitation of most other people

I wonder if they get annoyed more by the greater range

CrazyNeutrino said:

Some humans can hear up to 120khz far above the 20 khz limitation of most other people

I wonder if they get annoyed more by the greater range

I do.

roughbarked said:

CrazyNeutrino said:

Some humans can hear up to 120khz far above the 20 khz limitation of most other people

I wonder if they get annoyed more by the greater range

I do.

Does your extended hearing go deeper or higher or both or do you hear at longer distances?

CrazyNeutrino said:

roughbarked said:

CrazyNeutrino said:

Some humans can hear up to 120khz far above the 20 khz limitation of most other people

I wonder if they get annoyed more by the greater range

I do.

Does your extended hearing go deeper or higher or both or do you hear at longer distances?

It is weird. Has been all the time my right ear and my brain have had to sort out what to do with all the sounds above lowest range that happen to assail the left side of my head.

I hear stuff others cannot. All the while seeming unable to comprehend simple instructions to others close by.

roughbarked said:

CrazyNeutrino said:

roughbarked said:

I do.

Does your extended hearing go deeper or higher or both or do you hear at longer distances?

It is weird. Has been all the time my right ear and my brain have had to sort out what to do with all the sounds above lowest range that happen to assail the left side of my head.

I hear stuff others cannot. All the while seeming unable to comprehend simple instructions to others close by.

My dad has different levels of deafness in each ear, one side is better than the other side.

roughbarked said:

CrazyNeutrino said:

roughbarked said:

I do.

Does your extended hearing go deeper or higher or both or do you hear at longer distances?

It is weird. Has been all the time my right ear and my brain have had to sort out what to do with all the sounds above lowest range that happen to assail the left side of my head.

I hear stuff others cannot. All the while seeming unable to comprehend simple instructions to others close by.

For the benefit of those interested in the hearing aid experiment. Though there was some improvement in closed siruations, it wasn’t worth me chucking thousands of dollars at learning how to use it. The added problem of expensive things that I couldn’t sense losing when adjusting spectacles but would otherwise rattle tinfoil in my ears by adjusting glasses or brushing hair back.,.

> ltrasonic hearing is a recognised auditory effect which allows humans to perceive sounds of a much higher frequency than would ordinarily be audible using the physical inner ear, usually by stimulation of the base of the cochlea through bone conduction. Human hearing is recognised as having an upper bound around 17-20 kHz, depending on the person, but ultrasonic sinusoids as high as 120 kHz have been reported as successfully perceived.

One person demonstrated this for me by scraping fingernails (not on blackboard but similar) and the resulting ultrasound was picked up on his bat detector. I would hazard a guess that many sounds are annoying to me and presumably other humans because of their ultrasound component. Noises like breaking glass, or crossover distortion.

mollwollfumble said:

> ltrasonic hearing is a recognised auditory effect which allows humans to perceive sounds of a much higher frequency than would ordinarily be audible using the physical inner ear, usually by stimulation of the base of the cochlea through bone conduction. Human hearing is recognised as having an upper bound around 17-20 kHz, depending on the person, but ultrasonic sinusoids as high as 120 kHz have been reported as successfully perceived.

One person demonstrated this for me by scraping fingernails (not on blackboard but similar) and the resulting ultrasound was picked up on his bat detector. I would hazard a guess that many sounds are annoying to me and presumably other humans because of their ultrasound component. Noises like breaking glass, or crossover distortion.

try it with a hearing impairment like mine.

A mate said I was lucky to get to try them for free.

I knew that. I read the pamphlets on the way in.

That the audiometrist said that he accepted my signals as credible when he tested me and allowed me to test tweo different hearing aids for a week or more without asking more that I drop them back in in a week or so.

He knew thatthey’d be of little use to me.

roughbarked said:

mollwollfumble said:

> ltrasonic hearing is a recognised auditory effect which allows humans to perceive sounds of a much higher frequency than would ordinarily be audible using the physical inner ear, usually by stimulation of the base of the cochlea through bone conduction. Human hearing is recognised as having an upper bound around 17-20 kHz, depending on the person, but ultrasonic sinusoids as high as 120 kHz have been reported as successfully perceived.

One person demonstrated this for me by scraping fingernails (not on blackboard but similar) and the resulting ultrasound was picked up on his bat detector. I would hazard a guess that many sounds are annoying to me and presumably other humans because of their ultrasound component. Noises like breaking glass, or crossover distortion.

try it with a hearing impairment like mine.

A mate said I was lucky to get to try them for free.

I knew that. I read the pamphlets on the way in.

That the audiometrist said that he accepted my signals as credible when he tested me and allowed me to test tweo different hearing aids for a week or more without asking more that I drop them back in in a week or so.

He knew thatthey’d be of little use to me.

His computer kept it all. Maybe in another fifty years there will be a hearing aid that can sort it but I’m sure that buffy will agree with the specialists fifty years ago., “that it will never happen in your lifetime.”

Medical scans tend to use 2 MHz, which is above the 1.5 MHz I asked for. Ditto other ultrasound.

Bursting bubbles produce ultrasound, so you could still hear a kettle heating up and the sound of the waves on the beach. A whip crack, sonic boom, snapping shrimp would all still be audible. Water features would still be audible.

But what about non-incansedcent lights? Do CRTs, old fluorescent lights and/or LED lights generate ultrasound? What about transformers?

mollwollfumble said:

Medical scans tend to use 2 MHz, which is above the 1.5 MHz I asked for. Ditto other ultrasound.

Bursting bubbles produce ultrasound, so you could still hear a kettle heating up and the sound of the waves on the beach. A whip crack, sonic boom, snapping shrimp would all still be audible. Water features would still be audible.

But what about non-incansedcent lights? Do CRTs, old fluorescent lights and/or LED lights generate ultrasound? What about transformers?

I can hear ultrasound. Perhaps it is because I am attuned to certain frequencies by sitting with an ultrasonic buzzing in my ear for decades. Perhaps it is also relating to the way my brain attuned to the circumstances it was put in.

roughbarked said:

mollwollfumble said:

Medical scans tend to use 2 MHz, which is above the 1.5 MHz I asked for. Ditto other ultrasound.

Bursting bubbles produce ultrasound, so you could still hear a kettle heating up and the sound of the waves on the beach. A whip crack, sonic boom, snapping shrimp would all still be audible. Water features would still be audible.

But what about non-incansedcent lights? Do CRTs, old fluorescent lights and/or LED lights generate ultrasound? What about transformers?

I can hear ultrasound. Perhaps it is because I am attuned to certain frequencies by sitting with an ultrasonic buzzing in my ear for decades. Perhaps it is also relating to the way my brain attuned to the circumstances it was put in.

It could also be due to the way my brain deciphered the tinitus that constantly runs.

Another interesting Q, perhaps related, is what frequencies can a human feel, I mean there’s the obvious like bass notes, but skins very sensitive, (via) body hairs too. My nose gets itchy when i’m tuning the guitar.

Quick look and couldn’t find any info regards the latter.

Guessing it’d be 8K maybe? Of course depends on the intensity.

Reason I mention it is that maybe half of the typical frequency range humans hear at they maybe can feel with skin (hairs included) etc, and downward of that, so you can probably hear (in a sense – feel) lower frequencies that ~25hz.

Is this hearing, with your skin etc?

transition said:

Another interesting Q, perhaps related, is what frequencies can a human feel, I mean there’s the obvious like bass notes, but skins very sensitive, (via) body hairs too. My nose gets itchy when i’m tuning the guitar.

Quick look and couldn’t find any info regards the latter.

Guessing it’d be 8K maybe? Of course depends on the intensity.

Reason I mention it is that maybe half of the typical frequency range humans hear at they maybe can feel with skin (hairs included) etc, and downward of that, so you can probably hear (in a sense – feel) lower frequencies that ~25hz.

Is this hearing, with your skin etc?

Actually, hearing is more about hair than skin.

>Actually, hearing is more about hair than skin.

what are those chaps that shave their bodies missing out on.

transition said:

>Actually, hearing is more about hair than skin.

what are those chaps that shave their bodies missing out on.

They’ll likely never know.

roughbarked said:

transition said:

>Actually, hearing is more about hair than skin.

what are those chaps that shave their bodies missing out on.

They’ll likely never know.

Being only in there for the buzz.

roughbarked said:

transition said:

Another interesting Q, perhaps related, is what frequencies can a human feel, I mean there’s the obvious like bass notes, but skins very sensitive, (via) body hairs too. My nose gets itchy when i’m tuning the guitar.

Quick look and couldn’t find any info regards the latter.

Guessing it’d be 8K maybe? Of course depends on the intensity.

Reason I mention it is that maybe half of the typical frequency range humans hear at they maybe can feel with skin (hairs included) etc, and downward of that, so you can probably hear (in a sense – feel) lower frequencies that ~25hz.

Is this hearing, with your skin etc?

Actually, hearing is more about hair than skin.

how do you figure that one out?…

Stumpy_seahorse said:

roughbarked said:

transition said:

Another interesting Q, perhaps related, is what frequencies can a human feel, I mean there’s the obvious like bass notes, but skins very sensitive, (via) body hairs too. My nose gets itchy when i’m tuning the guitar.

Quick look and couldn’t find any info regards the latter.

Guessing it’d be 8K maybe? Of course depends on the intensity.

Reason I mention it is that maybe half of the typical frequency range humans hear at they maybe can feel with skin (hairs included) etc, and downward of that, so you can probably hear (in a sense – feel) lower frequencies that ~25hz.

Is this hearing, with your skin etc?

Actually, hearing is more about hair than skin.

how do you figure that one out?…

without the hair, there would be no fine tuning.

roughbarked said:

Stumpy_seahorse said:

roughbarked said:

Actually, hearing is more about hair than skin.

how do you figure that one out?…

without the hair, there would be no fine tuning.

explain

roughbarked said:

Stumpy_seahorse said:

roughbarked said:

Actually, hearing is more about hair than skin.

how do you figure that one out?…

without the hair, there would be no fine tuning.

dunno about the corelation of balding heads in parliament.

Stumpy_seahorse said:

roughbarked said:

Stumpy_seahorse said:

how do you figure that one out?…

without the hair, there would be no fine tuning.

explain

It’s all about the vibe man.

roughbarked said:

Stumpy_seahorse said:

roughbarked said:

without the hair, there would be no fine tuning.

explain

It’s all about the vibe man.

must be since there is no fact behind the statement…

Stumpy_seahorse said:

roughbarked said:

Stumpy_seahorse said:

explain

It’s all about the vibe man.

must be since there is no fact behind the statement…

since when?

I guess for something to qualify as hearing, without looking it up

Got the word ear in it, i’ll ignore that

Thinking about, there’s a book in that.

Whatever has to listen for something, so it has to have process (structure itself, looking for characteristics?).

But that’s a word-shift to listen.

Listen suggests something active.

Dunno, might consult wikipedia and get an education.

transition said:

I guess for something to qualify as hearing, without looking it up

Got the word ear in it, i’ll ignore that

Thinking about, there’s a book in that.

Whatever has to listen for something, so it has to have process (structure itself, looking for characteristics?).

But that’s a word-shift to listen.

Listen suggests something active.

Dunno, might consult wikipedia and get an education.

e
hear har.

roughbarked said:

Stumpy_seahorse said:

roughbarked said:

It’s all about the vibe man.

must be since there is no fact behind the statement…

since when?

since hair has no actio on the mechanism of hearing

Stumpy_seahorse said:

roughbarked said:

Stumpy_seahorse said:

must be since there is no fact behind the statement…

since when?

since hair has no actio on the mechanism of hearing

you are sure about that?

>since hair has no actio on the mechanism of hearing

isn’t it tiny hairs (hair-like whatevers) that die in your ears the big cause of deafness

roughbarked said:

Stumpy_seahorse said:

roughbarked said:

since when?

since hair has no actio on the mechanism of hearing

you are sure about that?

quite, but prepared to be corrected if you supply an example…

Stumpy_seahorse said:

roughbarked said:

Stumpy_seahorse said:

since hair has no actio on the mechanism of hearing

you are sure about that?

quite, but prepared to be corrected if you supply an example…

Hair cells are the sensory receptors of both the auditory system and the vestibular system in the … Damage to these hair cells results in decreased hearing sensitivity, and because the inner ear hair cells cannot regenerate, this damage is …
wiki or any…

roughbarked said:

Stumpy_seahorse said:

roughbarked said:

you are sure about that?

quite, but prepared to be corrected if you supply an example…

Hair cells are the sensory receptors of both the auditory system and the vestibular system in the … Damage to these hair cells results in decreased hearing sensitivity, and because the inner ear hair cells cannot regenerate, this damage is …
wiki or any…

from wiki.. no hair involvement

Background

Sound may be heard through solid, liquid, or gaseous matter. It is one of the traditional five senses; partial or total inability to hear is called hearing loss.

In humans and other vertebrates, hearing is performed primarily by the auditory system: mechanical waves, known as vibrations are detected by the ear and transduced into nerve impulses that are perceived by the brain (primarily in the temporal lobe). Like touch, audition requires sensitivity to the movement of molecules in the world outside the organism. Both hearing and touch are types of mechanosensation.
Hearing mechanism

There are three main components of the human ear: the outer ear, the middle ear, and the inner ear.
Outer ear
Main article: Outer ear

The outer ear includes the pinna, the visible part of the ear, as well as the ear canal which terminates at the eardrum, also called the tympanic membrane. The pinna serves to focus sound waves through the ear canal toward the eardrum. Because of the asymmetrical character of the outer ear of most mammals, sound is filtered differently on its way into the ear depending on what vertical location it is coming from. This gives these animals the ability to localize sound vertically. The eardrum is an airtight membrane, and when sound waves arrive there, they cause it to vibrate following the waveform of the sound.
Middle ear
Main article: Middle ear

The middle ear consists of a small air-filled chamber that is located medial to the eardrum. Within this chamber are the three smallest bones in the body, known collectively as the ossicles which include the malleus, incus and stapes (sometimes referred to coloquially as the hammer, anvil and stirrup respectively). They aid in the transmission of the vibrations from the eardrum to the inner ear. While the middle ear may seem unnecessarily complex, the purpose of its unique construction is to overcome the impedance mismatch between air and water, by providing impedance matching.

Also located in the middle ear are the stapedius and tensor tympani muscles which protect the hearing mechanism through a stiffening reflex. The stapes transmits sound waves to the inner ear through the oval window, a flexible membrane separating the air-filled middle ear from the fluid-filled inner ear. The round window, another flexible membrane, allows for the smooth displacement of the inner ear fluid caused by the entering sound waves.
Inner ear
Main article: Inner ear

The inner ear consists of the cochlea, which is a spiral-shaped, fluid-filled tube. It is divided lengthwise by the organ of Corti, which is the main organ of mechanical to neural transduction. Inside the organ of Corti is the basilar membrane, a structure that vibrates when waves from the middle ear propagate through the cochlear fluid – endolymph. The basilar membrane is tonotopic, so that each frequency has a characteristic place of resonance along it. Characteristic frequencies are high at the basal entrance to the cochlea, and low at the apex. Basilar membrane motion causes depolarization of the hair cells, specialized auditory receptors located within the organ of Corti. While the hair cells do not produce action potentials themselves, they release neurotransmitter at synapses with the fibers of the auditory nerve, which does produce action potentials. In this way, the patterns of oscillations on the basilar membrane are converted to spatiotemporal patterns of firings which transmit information about the sound to the brainstem.
Neuronal
Main article: Neuronal encoding of sound

The sound information from the cochlea travels via the auditory nerve to the cochlear nucleus in the brainstem. From there, the signals are projected to the inferior colliculus in the midbrain tectum. The inferior colliculus integrates auditory input with limited input from other parts of the brain and is involved in subconscious reflexes such as the auditory startle response.

The inferior colliculus in turn projects to the medial geniculate nucleus, a part of the thalamus where sound information is relayed to the primary auditory cortex in the temporal lobe. Sound is believed to first become consciously experienced at the primary auditory cortex. Around the primary auditory cortex lies Wernickes area, a cortical area involved in interpreting sounds that is necessary to understand spoken words.

Disturbances (such as stroke or trauma) at any of these levels can cause hearing problems, especially if the disturbance is bilateral. In some instances it can also lead to auditory hallucinations or more complex difficulties in perceiving sound.

Stumpy_seahorse said:

roughbarked said:

Stumpy_seahorse said:

quite, but prepared to be corrected if you supply an example…

Hair cells are the sensory receptors of both the auditory system and the vestibular system in the … Damage to these hair cells results in decreased hearing sensitivity, and because the inner ear hair cells cannot regenerate, this damage is …
wiki or any…

from wiki.. no hair involvement

Background

Sound may be heard through solid, liquid, or gaseous matter. It is one of the traditional five senses; partial or total inability to hear is called hearing loss.

In humans and other vertebrates, hearing is performed primarily by the auditory system: mechanical waves, known as vibrations are detected by the ear and transduced into nerve impulses that are perceived by the brain (primarily in the temporal lobe). Like touch, audition requires sensitivity to the movement of molecules in the world outside the organism. Both hearing and touch are types of mechanosensation.
Hearing mechanism

There are three main components of the human ear: the outer ear, the middle ear, and the inner ear.
Outer ear
Main article: Outer ear

The outer ear includes the pinna, the visible part of the ear, as well as the ear canal which terminates at the eardrum, also called the tympanic membrane. The pinna serves to focus sound waves through the ear canal toward the eardrum. Because of the asymmetrical character of the outer ear of most mammals, sound is filtered differently on its way into the ear depending on what vertical location it is coming from. This gives these animals the ability to localize sound vertically. The eardrum is an airtight membrane, and when sound waves arrive there, they cause it to vibrate following the waveform of the sound.
Middle ear
Main article: Middle ear

The middle ear consists of a small air-filled chamber that is located medial to the eardrum. Within this chamber are the three smallest bones in the body, known collectively as the ossicles which include the malleus, incus and stapes (sometimes referred to coloquially as the hammer, anvil and stirrup respectively). They aid in the transmission of the vibrations from the eardrum to the inner ear. While the middle ear may seem unnecessarily complex, the purpose of its unique construction is to overcome the impedance mismatch between air and water, by providing impedance matching.

Also located in the middle ear are the stapedius and tensor tympani muscles which protect the hearing mechanism through a stiffening reflex. The stapes transmits sound waves to the inner ear through the oval window, a flexible membrane separating the air-filled middle ear from the fluid-filled inner ear. The round window, another flexible membrane, allows for the smooth displacement of the inner ear fluid caused by the entering sound waves.
Inner ear
Main article: Inner ear

The inner ear consists of the cochlea, which is a spiral-shaped, fluid-filled tube. It is divided lengthwise by the organ of Corti, which is the main organ of mechanical to neural transduction. Inside the organ of Corti is the basilar membrane, a structure that vibrates when waves from the middle ear propagate through the cochlear fluid – endolymph. The basilar membrane is tonotopic, so that each frequency has a characteristic place of resonance along it. Characteristic frequencies are high at the basal entrance to the cochlea, and low at the apex. Basilar membrane motion causes depolarization of the hair cells, specialized auditory receptors located within the organ of Corti. While the hair cells do not produce action potentials themselves, they release neurotransmitter at synapses with the fibers of the auditory nerve, which does produce action potentials. In this way, the patterns of oscillations on the basilar membrane are converted to spatiotemporal patterns of firings which transmit information about the sound to the brainstem.
Neuronal
Main article: Neuronal encoding of sound

The sound information from the cochlea travels via the auditory nerve to the cochlear nucleus in the brainstem. From there, the signals are projected to the inferior colliculus in the midbrain tectum. The inferior colliculus integrates auditory input with limited input from other parts of the brain and is involved in subconscious reflexes such as the auditory startle response.

The inferior colliculus in turn projects to the medial geniculate nucleus, a part of the thalamus where sound information is relayed to the primary auditory cortex in the temporal lobe. Sound is believed to first become consciously experienced at the primary auditory cortex. Around the primary auditory cortex lies Wernickes area, a cortical area involved in interpreting sounds that is necessary to understand spoken words.

Disturbances (such as stroke or trauma) at any of these levels can cause hearing problems, especially if the disturbance is bilateral. In some instances it can also lead to auditory hallucinations or more complex difficulties in perceiving sound.

Didn’t see you mention skin, anywhere there.

Sometimes sensory perception can mix with 2 senses or in rare cases all five senses together

Synesthesia (also spelled synæsthesia or synaesthesia; from the Ancient Greek σύν syn, “together”, and αἴσθησις aisthēsis, “sensation”) is a neurological phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. People who report a lifelong history of such experiences are known as synesthetes.

more…

https://en.wikipedia.org/wiki/Perception

Other senses
Main article: Sense

Other senses enable perception of body balance, acceleration, gravity, position of body parts, temperature, pain, time, and perception of internal senses such as suffocation, gag reflex, intestinal distension, fullness of rectum and urinary bladder, and sensations felt in the throat and lungs.

Sensorium

A sensorium (plural: sensoria) is the sum of an organism’s perception, the “seat of sensation” where it experiences and interprets the environments within which it lives. The term originally entered English from the Late Latin in the mid-17th century, from the stem sens- (“sense”). In earlier use it referred, in a broader sense, to the brain as the mind’s organ (Oxford English Dictionary 1989). In medical, psychological, and physiological discourse it has come to refer to the total character of the unique and changing sensory environments perceived by individuals. These include the sensation, perception, and interpretation of information about the world around us by using faculties of the mind such as senses, phenomenal and psychological perception, cognition, and intelligence.

More…

CrazyNeutrino said:

Sometimes sensory perception can mix with 2 senses or in rare cases all five senses together

Synesthesia (also spelled synæsthesia or synaesthesia; from the Ancient Greek σύν syn, “together”, and αἴσθησις aisthēsis, “sensation”) is a neurological phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. People who report a lifelong history of such experiences are known as synesthetes.

more…

link

https://en.wikipedia.org/wiki/Synesthesia

https://en.wikipedia.org/wiki/Category:Perception

CrazyNeutrino said:

https://en.wikipedia.org/wiki/Category:Perception

Wouldn’t that be an incorrectly phrased question.
If hearing was ultrasonic we couldn’t hear it & if we could hear it then it wouldn’t be ultrasonic.

Stumpy_seahorse said:

roughbarked said:

Stumpy_seahorse said:

since hair has no actio on the mechanism of hearing

you are sure about that?

quite, but prepared to be corrected if you supply an example…

This what you are looking for?:

https://en.wikipedia.org/wiki/Cochlea#Amplification_by_the_hair_cells

Would a motor vehicle be louder of softer in the ultrasonic?

At a guess:
Tyre noise would vanish
Wind noise would be much softer
Engine noise and door slam noise would be similar
Windscreen wiper noise on a dry windscreen would be louder
Brake noise would appear

Solid on solid fraction generates ultrasonic noise, eg brake and windscreen wiper.
Impact noise generates both sound and ultrasonic noise, eg. door slam.
Explosions generate both sound and ultrasonic noise, eg. engine ignition.

I suppose to only way to be sure would be to try out a bat detector in a moving motor vehicle.

dv said:

Rumbly

You’re right. The higher the ultrasound frequency, the more the sound is absorbed by air.

I asked for 15 kHz to 1500 kHz.

Between 50 and 250 kHz we lose 4.5 dB per foot. So at a distance of 10 metres, that would be a loss of 148 dB, enough to completely suppress the noise of an automatic riveter at 10 metres. Enough to completely suppress the noise of a jet engine at 30 metres.

Well, that explains why bats have hearing that only goes up to 115 kHz or so. 115 kHz relative to 40 kHz in air loses 1.5 dB per foot. This also helps to explain why bat echo location is so good, in caves they simply steer towards the quietest high frequency ultrasound and when hunting insects they simply steer towards the loudest high frequency ultrasound.

In water, there’s very little ultrasound attenuation below 4000 kHz. Which helps to explain why sonar pings work so well and why porpoises have an ultrasound hearing range that extends to a higher frequency than bats.

CrazyNeutrino said:

Sensorium

A sensorium (plural: sensoria) is the sum of an organism’s perception, the “seat of sensation” where it experiences and interprets the environments within which it lives. The term originally entered English from the Late Latin in the mid-17th century, from the stem sens- (“sense”). In earlier use it referred, in a broader sense, to the brain as the mind’s organ (Oxford English Dictionary 1989). In medical, psychological, and physiological discourse it has come to refer to the total character of the unique and changing sensory environments perceived by individuals. These include the sensation, perception, and interpretation of information about the world around us by using faculties of the mind such as senses, phenomenal and psychological perception, cognition, and intelligence.

More…

that include the internal environment or what, or is it a tricky way of making the internal environment the product of the external environment (determined of, firstly).

there is a point where variously environmental determinism becomes hostile, an imposing fucken beast.

excuse my English, but you know there’s a lot of crap out there. It’s crap that works, but it is crap.

Be thankful of things like gravity, requires no bullshit at all.

Cymek said:

That’s interesting as they had a blind man on World’s Weirdest Shit last night who used echolocation to navigate.

https://en.wikipedia.org/wiki/Human_echolocation

I use echolocation. It’s the only way I can find Mrs m’s lips in the dark shortly after she switches the light out. I produce a series of clicks similar to those a porpoise uses.

I have been known to use echolocation to navigate around in the dark , but that’s not as effective now that I have age-related high end hearing loss. Instead I use the mythbusters pirate trick for navigating in the dark now.

mollwollfumble said:

Cymek said:

That’s interesting as they had a blind man on World’s Weirdest Shit last night who used echolocation to navigate.

https://en.wikipedia.org/wiki/Human_echolocation

I use echolocation. It’s the only way I can find Mrs m’s lips in the dark shortly after she switches the light out. I produce a series of clicks similar to those a porpoise uses.

I have been known to use echolocation to navigate around in the dark , but that’s not as effective now that I have age-related high end hearing loss. Instead I use the mythbusters pirate trick for navigating in the dark now.

The eye patch so one eye is dark accustomed ?

Cymek said:

mollwollfumble said:

Cymek said:

That’s interesting as they had a blind man on World’s Weirdest Shit last night who used echolocation to navigate.

https://en.wikipedia.org/wiki/Human_echolocation

I use echolocation. It’s the only way I can find Mrs m’s lips in the dark shortly after she switches the light out. I produce a series of clicks similar to those a porpoise uses.

I have been known to use echolocation to navigate around in the dark , but that’s not as effective now that I have age-related high end hearing loss. Instead I use the mythbusters pirate trick for navigating in the dark now.

The eye patch so one eye is dark accustomed ?

Yes.

Mentioned skin (hairs on skin too) way back because I think there’s good reason (of biohistory and adaptation) that there’s similarities(correspondence/overlap even of frequency range) between what ears hear, and what skin etc can feel.

Like what was the chances of the gifted species having reptile like scales? For example.

Packed with special mind tools, why didn’t something tougher evolve with it (of the body vehicle).

An energetic species (can be as needed), perspiring’s helpful to keeping cool (and cooling off quick), and a good set of lungs.

So it looks like the gifted species is quite soft, bit of skin with minimal hair. Fingers are agile, given to fine work, very sensitive, and got a control system to operate them that is impressive.

So, i’d ask, of this theoretical human-like whatever (the thought experiment) does it have the type of skin (hair etc) that existing modern humans have?

Because I can see the correspondence of these senses sort of evolving with each other, or even the maintenance of whatever correspondence.

transition said:

Mentioned skin (hairs on skin too) way back because I think there’s good reason (of biohistory and adaptation) that there’s similarities(correspondence/overlap even of frequency range) between what ears hear, and what skin etc can feel.

Like what was the chances of the gifted species having reptile like scales? For example.

Packed with special mind tools, why didn’t something tougher evolve with it (of the body vehicle).

An energetic species (can be as needed), perspiring’s helpful to keeping cool (and cooling off quick), and a good set of lungs.

So it looks like the gifted species is quite soft, bit of skin with minimal hair. Fingers are agile, given to fine work, very sensitive, and got a control system to operate them that is impressive.

So, i’d ask, of this theoretical human-like whatever (the thought experiment) does it have the type of skin (hair etc) that existing modern humans have?

Because I can see the correspondence of these senses sort of evolving with each other, or even the maintenance of whatever correspondence.

Surfaces of multicellular animals are pretty much the same. Fish, worms and humans have skin. Hair, porcupine spines, scales, feathers are all keratin or similar protein. Exoskeletons of lobsters of lobsters and insects are made of chitin, a sugar. Carbonates appear as the surfaces of mollusks, turtles and ancient fish.

Each has advantages and disadvantages. Carbonates provide the best protection, but are heaviest so hinder actions that require getting food. Ordinary human skin cam be as tough as leather and has the advantages that transition described of porosity for cooling by evaporation, sensitivity to contact, and flexibility.

Not sure how much useful sound feedback you’d get to help avoid injury is the fr of ears was >18K or whatever. And this is important, the typical sounds like of a tree branch giving way under your feet. The thud of feet as walking/running (related tripping).

Not a thorough list those two examples, you can be sure.

Hearing your breathing not unrelated to hearing your own words.

Banging your head on something, the thud. The sound with the head jolt.

Thunder rumbles and cracks (frightens the hell out of me when close). Not a stupid aversion. Comes with heavy rain and wind too, often.