Audio apparatus and method therefor
US12432519B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2022 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Sep 25, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio apparatus for generating a flutter echo audio signal comprises a receiver (401) arranged to receive room metadata indicative of properties of a room. The room metadata may e.g. indicate dimensions of the room and/or acoustic reflection data for boundaries of the room. An estimator (405) determines a flutter echo estimate for the room in response to the room metadata where the flutter echo estimate is indicative of a level of a flutter echo in the room. A signal generator (403) includes a feedback delay network comprising a plurality of feedback loops. The signal generator (403) is arranged to generate the flutter echo audio signal from output signals of a set of feedback loops of the plurality of feedback loops being fed an audio source signal. An adapter (407) adapts a first parameter for a first feedback loop of the set of feedback loops in response to the flutter echo estimate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.