Sound processing system for configuration of audio signals in a vehicle
US7447321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2004 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Feb 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound processing system for a vehicle includes a sound processor that is configured to mix at least one real audio input signal to form at least one virtual output signal. At least one audio signal that is available to drive at least one loudspeaker may be formed using the combination of the virtual output signal and the real audio input signal. The virtual output signal may be post processed to form a predetermined frequency range of the audio signal prior to being combined with the real audio input signal. The audio signal may be created by mixing the real audio input signal with the post processed virtual output signal. Alternatively, the audio signal may be formed by mixing the real audio input signal to form a real audio output signal, and then summing the real audio output signal with the post processed virtual output signal. Mixing may be performed with a crossbar mixer included in the sound processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.