Linear audio distortion is easy to equalize while non-linear distortion resists compensation

Evidence

Audio devices, especially electroacoustic components, often have a non-ideal response. The linear distortion created by such systems, in other words the deviations from the flat, unit magnitude response and from the frequency-independent group delay, can be measured simply by presenting a known sound signal to the system and by comparing the output to the input. A number of methods to measure the non-linearities of the systems via the distortion have been proposed, and a few of them were discussed here. Linear distortions may be equalized relatively simply using digital filters, although the equalization may amplify some non-linear effects of the system. Non-linear distortions are much harder to compensate for. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 528

Categorization

• corroborated: 3 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 528