Method and apparatus for adjusting a cross-over frequency of a loudspeaker
US9955261B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2017 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Jan 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2430/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for adjusting a cross-over frequency of a loudspeaker system. The loudspeaker system includes at least a first loudspeaker for frequencies below the cross-over frequency and a second loudspeaker for frequencies above the cross-over frequency. A level of the first loudspeaker is matched with the second loudspeaker using a first test signal and a room response is compensated in the loudspeaker system on the basis of the first test signal. The compensated room response is measured using a second test signal. A maximum frequency for the first loudspeaker and a minimum frequency for the second loudspeaker are determined. A cross-over frequency that results in a minimum cumulative total harmonic distortion energy at one or more sound pressure levels is searched between the minimum and maximum frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.