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A sound speed gradient leads to refraction of sound wavefronts in the direction of lower sound speed, causing the sound rays to follow a curved path. The radius of curvature of the sound path is inversely proportional to the gradient. [2] When the sun warms the Earth's surface, there is a negative temperature gradient in atmosphere.
Psychoacoustics is the branch of psychophysics involving the scientific study of the perception of sound by the human auditory system.It is the branch of science studying the psychological responses associated with sound including noise, speech, and music.
A gradient illustration, showing a gradation spectrum from black to white. Artists use a variety of methods to create gradation, depending upon the art medium, and the precise desired effect. Blending, shading, hatching and crosshatching are common methods. A fading effect can be created with pastels by using a torchon. [2]
Georges Lentz's 43-hour String Quartet(s) at the Cobar Sound Chapel (2022), with loudspeakers in the four walls. Sound installation is an intermedia and time-based art form. It is an expansion of an art installation in the sense that it includes the sound element and therefore the time element. [11]
At each step, noise frequency is doubled and amplitude is halved. 2-D Perlin noise with a contour line at zero, showing that the noise is zero at the gradient mesh intersections. Perlin noise is most commonly implemented as a two-, three- or four-dimensional function, but can be defined for any number of dimensions. An implementation typically ...
British psychotherapist Paul Newham using Expressive Therapy with a client. The expressive therapies are the use of the creative arts as a form of therapy, including the distinct disciplines expressive arts therapy and the creative arts therapies (art therapy, dance/movement therapy, drama therapy, music therapy, writing therapy, poetry therapy, and psychodrama).
The diagram first appeared in Imagery and Visual Expression in Therapy by Vija B. Lusebrink (1990). [1] The Expressive Therapies Continuum (ETC) is a model of creative functioning [2] used in the field of art therapy that is applicable to creative processes both within and outside of an expressive therapeutic setting. [3]
An artifact of some implementations of this noise is that the returned value at the lattice points is 0. Unlike the value noise, gradient noise has more energy in the high frequencies. The first known implementation of a gradient noise function was Perlin noise, credited to Ken Perlin, who published the description of it in 1985.