Exciter (from the English Exciter), also called a harmonic exciter (harmonic exciter), psychoacoustic processor (psychoacoustic processor), enhancer and enhancer (aural exciter) is a processing device used for the harmonious synthesis of high-frequency signals, using thin harmonic distortion.
This harmonic synthesis consists in creating higher harmonics based on lower signal frequencies. Typically, noise is present in different frequency bands in unequal amounts, and harmonics obtained from a clean frequency band will be clearer. Less commonly, exciters (enhancers) are used to synthesize low-frequency harmonics in order to simulate deep bass.
Initially, exciters were made on the basis of tube amplifiers, but now they exist in the form of digital processors. Continue reading