Have you seen how people put their ears on the train track and ‘listen’ to the train even before you can actually see or hear it finally?
Of course now you may not try it since people may be recording and it is more thrilling if the reel captures even the train!
But the fact is that you can actually hear the train through the track first and then see it since sound travels about 15 times faster in iron (or steel) than in air. So, sound travels much faster through the railway track made of steel than through air!
This is actually the basis of the hearing test or the audiometry!
The steel solid transfer is called the bone conduction which is better than the actual air conduction. Though of course when there is issues with the ear drum or conduction system of the ear, you get hearing loss. That’s because the amplifier mechanism of ear bones and the drum accentuates the sound due to lever action and difference in surface area so that there is a pressure amplification about 22 times which translates to an amplification of around 30db!
Simply put, the ear drum and bones act like an amplifier! Which is why when any part of the amplification is not good, your hearing is affected! It can be a simple cold causing your drum to get retracted or fluid getting accumulated or a hole in the drum!
These types of hearing issues are called conductive loss since they happen due to the issues with conduction of sound!
That’s why there are some people who suffer from hearing loss due to bone fixation called the Otosclerosis. Even in them if the sound is presented to the bone directly via a sound vibrator or something called the bone conduction headphones then they can hear properly and better!
Bone conduction headphones work only when the point of contact is close to the bones. Of course all parts of the skull act as a single unit so that you can present the sound anywhere like behind the ear on a bone called the mastoid or the temple area.
But it is not a sound method and the constant vibration can cause headache.
A better and newer headphones is focused air conduction headphones which focusses the sound close to the ear and keeps the ear open to ambient noise and safe! But that may not work with severe loss!
So future is using the sound conduction of materials to give good hearing or listening results! Then again you must not listen to focussed or loud sounds for long period since that can cause issues (though it may increase my OP!)
The difference between noise and music is rhythm! Rhythm was also the hallmark of Pandit Bhim Sen Joshi
Jai hind
Have you seen how people put their ears on the train track and ‘listen’ to the train even before you can actually see or hear it finally?
Of course now you may not try it since people may be recording and it is more thrilling if the reel captures even the train!
But the fact is that you can actually hear the train through the track first and then see it since sound travels about 15 times faster in iron (or steel) than in air. So, sound travels much faster through the railway track made of steel than through air!
This is actually the basis of the hearing test or the audiometry!
The steel solid transfer is called the bone conduction which is better than the actual air conduction. Though of course when there is issues with the ear drum or conduction system of the ear, you get hearing loss. That’s because the amplifier mechanism of ear bones and the drum accentuates the sound due to lever action and difference in surface area so that there is a pressure amplification about 22 times which translates to an amplification of around 30db!
Simply put, the ear drum and bones act like an amplifier! Which is why when any part of the amplification is not good, your hearing is affected! It can be a simple cold causing your drum to get retracted or fluid getting accumulated or a hole in the drum!
These types of hearing issues are called conductive loss since they happen due to the issues with conduction of sound!
That’s why there are some people who suffer from hearing loss due to bone fixation called the Otosclerosis. Even in them if the sound is presented to the bone directly via a sound vibrator or something called the bone conduction headphones then they can hear properly and better!
Bone conduction headphones work only when the point of contact is close to the bones. Of course all parts of the skull act as a single unit so that you can present the sound anywhere like behind the ear on a bone called the mastoid or the temple area.
But it is not a sound method and the constant vibration can cause headache.
A better and newer headphones is focused air conduction headphones which focusses the sound close to the ear and keeps the ear open to ambient noise and safe! But that may not work with severe loss!
So future is using the sound conduction of materials to give good hearing or listening results! Then again you must not listen to focussed or loud sounds for long period since that can cause issues (though it may increase my OP!)
The difference between noise and music is rhythm! Rhythm was also the hallmark of Pandit Bhim Sen Joshi
Jai hind
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