In psychoacoustics and signal processing, a pure tone is a sound or a signal with a sinusoidal waveform; that is, a sine wave of any frequency, phase-shift, and amplitude. A pure tone has the property – unique among real-valued wave shapes – that its wave shape is unchanged by linear time-invariant systems; that is, only the pha… WebThe amplitudes of the various spectral components partially determine the tone quality, or timbre, of the instrument. Bore configuration and harmonicity The bore shapes of musical …
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http://www.astrodreamadvisor.com/Pages/blue_spec_eagle.html WebMar 13, 2024 · The spectral centroid describes how much of the spectral energy is concentrated in higher rather than lower harmonics. A high centroid tends to make the … A related phenomenon is the appearance of strong harmonics when a sinusoidal signal (which has the ultimate "discrete spectrum", consisting of a single spectral line) is modified by a non-linear filter; for example, when a pure tone is played through an overloaded amplifier, or when an intense monochromatic laser … See more In the physical sciences, the spectrum of physical quantity (such as energy) may be called continuous if it is non-zero over the whole spectrum domain (such as frequency or wavelength) or discrete if it attains non-zero … See more The classical example of discrete spectrum (for which the term was first used) is the characteristic set of discrete spectral lines seen … See more The classical example of a continuous spectrum, from which the name is derived, is the part of the spectrum of the light emitted by excited atoms of hydrogen that is due to free electrons becoming bound to a hydrogen ion and emitting photons, which are smoothly spread … See more • Continuous or discrete variable • Astronomical spectroscopy (examples of continuous spectra) See more downface confidence rar