The particle velocity level or the sound velocity level tells the ratio of a sound incidence in comparison to a reference level of 0 dB in a medium, mostly air.
It shows the ratio of the particle velocity v1 and the particle velocity v0.
The particle velocity level is:
where v1 and v0 are the velocities.
The particle velocity level has the letter "Lv".
The unit of the particle velocity level is named "dB".
Notice: The dB is dimensionless.
If v0 is the standard reference particle velocity of:
we use "dB SVL". (SVL = sound velocity level).
Sound particle velocity v should not be confused with Sound velocity c.
Read more about this topic: Particle Velocity
Famous quotes containing the words particle and/or level:
“Love is life. All, everything that I understand, I understand only because I love. Everything is, everything exists, only because I love. Everything is united by it alone. Love is God, and to die means that I, a particle of love, shall return to the general and eternal source.”
—Leo Tolstoy (18281910)
“Ambivalence reaches the level of schizophrenia in our treatment of violence among the young. Parents do not encourage violence, but neither do they take up arms against the industries which encourage it. Parents hide their eyes from the books and comics, slasher films, videos and lyrics which form the texture of an adolescent culture. While all successful societies have inhibited instinct, ours encourages it. Or at least we profess ourselves powerless to interfere with it.”
—C. John Sommerville (20th century)