Sound reproducing apparatus and sound reproducing system
US8094827B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2005 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | May 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/301
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a sound reproducing system and a sound reproducing apparatus that can provide a high realistic sensation to a user, without having to do a troublesome task on the user's side.A surround-sound system (100) includes: an array speaker system (20) that is formed with speaker units SPU having the same characteristics; and a signal processing apparatus (120) that drives the speaker units SPU independently of one another and amplifies an audio signal. The signal processing apparatus (120) includes: a signal processing control unit (260) that calculates each filter coefficient for each of the speaker units so as to generate reverberant components to be reflected by a wall surface of a listening room (10) when the audio signal or test signal is amplified through the array speaker system (20) based on preset reverberant characteristics; and a filtering unit (250) that divides the audio signal or test signal by the same number as the number of speaker units so as to obtain unit signals, and then performs signal processing on each of the unit signals divided based on each of the filter coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.