Phaser (effect)

A phaser is an electronic sound processor used to filter a signal by creating a series of peaks and troughs in the frequency spectrum. The position of the peaks and troughs of the waveform being affected is typically modulated so that they vary over time, creating a sweeping effect. For this purpose, phasers usually include a low-frequency oscillator.

Process

The electronic phasing effect is created by splitting an audio signal into two paths. One path treats the signal with an all-pass filter, which preserves the amplitude of the original signal and alters the phase. The amount of change in phase depends on the frequency. When signals from the two paths are mixed, the frequencies that are out of phase will cancel each other out, creating the phaser's characteristic notches. Changing the mix ratio changes the depth of the notches; the deepest notches occur when the mix ratio is 50%.

The definition of phaser typically excludes such devices where the all-pass section is a delay line; such a device is called a flanger. Using a delay line creates an unlimited series of equally spaced notches and peaks. It is possible to cascade a delay line with another type of all-pass filter. This combines the unlimited number of notches from the flanger with the uneven spacing of the phaser.

Phasing (disambiguation)

Phasing may refer to:

  • Phasing, a technique in musical composition
  • Phasing, the use of the Phaser (effect), an audio signal processing technique
  • Phasing (ability), a fictional or hypothetical ability to pass through solid objects
  • Marching band phasing
  • Phasing (Magic mechanic) a creature mechanic in Magic: The Gathering
  • Phasing, a term originally coined from an idea presented by the author and consciousness researcher Robert Monroe to describe what is taking place when one goes through an out-of-body experience, NDE and other such shifts of perception.
  • See also:

  • Phase (disambiguation)
  • Phaser (disambiguation)
  • Phasor (disambiguation)
  • List of superhuman features and abilities in fiction

    Many forms of fiction feature characters attributed with superhuman, supernatural, or paranormal abilities, often referred to as "superpowers" (also spelled "super powers" and "super-powers") or "powers." This tradition is especially rich in the fictional universes of various comic book stories. This is a list of many of those powers that have been known to be used. Some of these categories overlap.

    Origins

    Examples of ways in which a character has gained the ability to generate an effect.

    Methods

    Examples of methods by which a character generates an effect.

    Powers

    Superpower interaction

    This section refers to the ability to manipulate or otherwise interact with superpowers themselves, not "power" such as electrical power or gravitational power.

    Personal physical powers

    Powers which affect an individual's body.

    Mentality-based abilities

    ESP

    The abilities of extra-sensory perception (ESP) and communication.

    Physical or mental domination

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