US 9,319,789 B1 · Bass enhancement

Abstract

The present invention relates to a bass enhancement system comprising a bass substitution filter with variable gain and variable band width, wherein said variable gain and variable bandwidth at least partly depends on characteristics of an input signal. The present invention further relates to a bass enhancement system according to the above, further comprising a hearing compensation filter and a loudspeaker bass response compensation filter, wherein said input signal is coupled to said hearing compensation filter, the output of which is coupled to said loudspeaker bass response filter, the output of which is coupled to said bass substitution filter. The present invention further relates to a method of enhancing bass perception comprising boosting a reproducible bass frequency band in accordance with characteristics of signal content in a substantially non-reproducible bass frequency band.

Claims12

Dependent claims

Method of performing a bass enhancement of an input audio signal, the input audio signal being intended for amplification and subsequent audio reproduction by a loud speaker,

the input signal having low frequency audio components and thereto associated harmonics,
wherein the bass enhancement of said input signal is obtained by filtering of said associated harmonics already present in the input signal,
the filtering comprises obtaining said associated harmonics from the input signal and increasing a gain in a frequency range of said associated harmonics when a level of said low frequency audio components increases, and
wherein a center frequency of said frequency range is increased when the level of said low frequency audio components increases.

1 more element

Dependencies are inferred from the claim text.

Bass enhancement

Life of this patent

Bass enhancement

Life of this patent

Abstract

Claims12