how is the pressure varition in a sound wave amplified in human ear
Sound velocity profile refers to the variation of the speed of sound with depth in a medium, such as the ocean. It typically shows how the sound speed changes due to variations in temperature, salinity, and pressure. Understanding the sound velocity profile is crucial in underwater acoustics for applications like submarine navigation and communication.
Your ears and the sound pressure level meter "measure" the sound pressure of a sound wave. Sound intensity is measured in watts per square meter.Intensity is measured in watts per square meter.Note: Sound power (sound intensity) is the cause -and the sound pressure is the effect.The effect is of particular interest to the sound engineer.
Sound waves accessible by humans are attenuated in water.
Because it is pressure that actually propagates through the medium. When air is the medium, air molecules are displaced outward and then back, in unison with the sound generating object. This 'wave' of pressure, much like a ripple on water, moves through the air outward from the source.
The sense of touch is responsible for detecting temperature and pressure in the human body. This sense is mediated by specialized nerve endings in the skin that can detect changes in temperature and pressure and send signals to the brain for interpretation.
The sound pressure moves the human ear drums and also the diaphragms of the microphones. A sound wave is transformed by the microphone to an electric voltage wave, which is amplified by a microphone pre-amplifier.
There is no sound pressure, there is atmospheric pressure of 101.325 kPa equivalent to 760 mmHg (torr), 29.92 inHg or 14.696 PSI. The sound pressure is the local pressure deviation from the ambient atmospheric pressure caused by a sound wave.
Sound can be amplified through a wall by using a device called a speaker or a sound amplifier. The sound waves travel through the wall and are then amplified by the speaker, making them louder on the other side of the wall.
An acoustic drum is amplified with microphones and amplifiers and electronic drums have cables that attach the drums to an amplifier.
The official definition for the word amplified is "increase the volume of (sound), especially using an amplifier."
Sound vibrations are amplified in a concert hall by the shape and materials of the walls, ceiling, and floor, which help to reflect and focus the sound waves towards the audience.
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The human is is not sensitive to sound intensity (energy), but the human ear is sensitive to sound pressure or to sound pressure level (SPL). It is ranging from 20 micropascals to 150 pascals, that is a SPL of 0 dB (threshold of hearing) to 137.5 dB (threshold of pain). Scroll down to related links and look at "Table of Sound Levels and corresponding Sound Pressure".
That is not correct. The human ear drums are only sensitive to the sound pressure variations. Also the microphone diaphragms are moved by the amplitude of sound pressure variations. At 0 dBSPL, the threshold of hearing, the sound pressure is 20 micropascals. At 134 dBSPL, the threshold of pain, the sound pressure is 100 pascals.
Sound travels through a microphone via pressure wave vibrations in the air. When sound waves reach the microphone, they cause a diaphragm or other sensing element to vibrate, which then converts the sound waves into electrical signals that can be amplified and recorded.
Sound is picked up by the outer ear and is sent to the middle ear. It is amplified and enters the cochlea which allows us to hear.
Our ear drums with the ear/brain system are moved only by sound pressure motions. The sound pressure is the effect, but the sound power (sound intensity) of the source is the cause.