Technology / Home Audio / Intermodulation Distortion: A species of Distortion that results when one set of frequencies is superimposed on, or is modified by, another to produce a third frequency not present in the original signal. Quantifies the distortion products of nonlinearities in the unit under test that causes complex waves to produce beat frequencies, i.e., sum and difference products not harmonically related to the fundamentals.
Technology / Home Audio / Distortion: Any departure from a true and accurate reproduction of the original waveform. It can include Noise, Clipping Distortion, Harmonic, and Intermodulation Distortion. These last two forms are fairly commo MORE
Entertainment / Photography / Pincushion Distortion: Lens aberration causing parallel, straight lines at the edge of the image to curve toward the lens axis. MORE