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The sound pressure decreases with distance after the distance law 1/r. (No square!)
Our ear drums are only moved by the sound pressure of the air.
Scroll down to related links and look at "Inverse Distance law".
Scroll down to related links and look at "Conversion of sound pressure to sound pressure level".
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∙ 14y ago
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What is the relation between frequency and distance of propagation?
Frequency and distance are directly proportional the higher the frequency the more distance for the sound to dissipate th lower the frequency th shorter the distance for the sound to dissipate
What is the relation between sound and the temperature of material?
I think there is no relation between sound and temperature. But velocity of sound is found to be proportional to the square root of temperature of the medium (air)
The pitch of a sound is the distance from the sound source?
The pitch of a sound means the frequency. That stays constant with distance. You mean the sound pressure level that decreases with distance.
What distance is the sound intensity level 25dB?
That depends on the sound intesity level at the point of origen. Sound fall of with the square of the distance but the original intensity must be known.
What distance is loudness of sound measured?
There is really no standard distance from the sound source where the sound pressure level (SPL) is measured.
How is sound pressure converted to sound power level?
Sound power level is equal to sound pressure level and intensity level at a distance of r = 0.2821 m from the source at full sphere propagation. See related Link.
What is the sound method of detecting things?
the method for detecting things with sound is called as SONAR-sound navigation and radiation. in this mehod we need to know the speed of sound in that medium. and as we have the relation that speed=distance*time, we can use a detector-to know that the sound that we sent has returned and stopcock to get the time. the distance we get should be divided by 2 so as to get the distance of the object from the source.
How loud is a jet?
A jet at 100 m distance can have a sound pressure level of L = 140 dBSPL.Never forget to tell the distance of the measuring microphone from the sound source, because the closer you are the louder it is.The sound pressure level decreases by 6 dB per doubling of distance from the source to 1/2 (50 %) of the sound pressure initial value.The sound pressure decreases inversely as the distance increases with 1/r from the sound source.
What is the decibel of a jet plane in flight?
The main question is; measured at which distance? The closer you are, the higher is the level. The sound pressure level decreases with distance after the inverse distance law (1/r law), that means decreasing 6 dB per doubling distance r. Scroll down to related links and look at "Level in decibel - Sound pressure and the inverse distance law".
How loud is a Boeing 747?
A Boeing 747 at 100 m distance can have a sound pressure level of L = 130 dBSPL.Never forget to tell the distance of the measuring microphone from the sound source, because the closer you are the louder it is.The sound pressure level decreases by 6 dB per doubling of distance from the source to 1/2 (50 %) of the sound pressure initial value.The sound pressure decreases inversely as the distance increases with 1/r from the sound source.
What is the effect of distance on sound?
The sound pressure decreases with distance r in a free field (direct field).The next question is. How does the sound decrease with increasing distance? After which law?The sound pressure p diminishes with distance after the 1/r law. Sound pressure decreases inversely as the distance increases with 1/r from the sound source. The Sound pressure level (SPL) decreases by (−)6 dB per doubling of distance from the source to 1/2 (50 %) of the sound pressure initial value.Sometimes it is said, that the sound decreases with with 1/r², the inverse square law. That is really wrong.Scroll down to related links and look at "Damping of sound level with distance".p2 / p1 = r1 / r2 and p2 = p1 x r1 / r2p1 = sound pressure 1 at reference distance r1 from the sound source.p2 = sound pressure 2 at another distance r2 from the sound source.Scroll down to related links and look at "How does the sound or the noise decrease with distance?"
How loud is 60 db?
60 dB sound pressure level is about conversational speech listened in 1 meter distance.
