Low frequency equalization for loudspeaker system
US8098849B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 20, 2007 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Sep 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/2873
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of optimizing the low frequency audio response emanating from a pair of low frequency transducers housed within a cabinet. The low frequency transducers are electrically connected to a power amplifier and source of audio content. The resonant frequency (Fs) and amplitude (Q) are characterized as to the high-pass pole of the low frequency transducers as they are mounted within the cabinet. An equalizer is placed between the amplifier and source of audio content for canceling the complex pole of the low frequency transducers and for establishing a new complex pole at a cut off frequency below which the sound generated by the low frequency transducers will diminish.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.