Apparatus and methods for enhancing electronic audio signals

摘要

The present invention is a method and apparatus for simply and inexpensively enhancing an electronic audio signal in such a way that the quality of audible sound produced from the audio signal more closely approaches that of the original sound heard live in an acoustically designed environment. The present invention restores the perception of harmonics that are normally missing in an electronic audio signal. The apparatus comprises a passive circuit (5) that causes an input audio signal (S) to be distorted such that an enhanced audio signal is produced that exhibits an improved harmonic quality compared to that of the original input audio signal (S). The passive circuit comprises at least one transformer (5).