DEVICE, METHOD OR COMPUTER PROGRAM FOR PROCESSING A SOUND FIELD REPRESENTATION IN A SPATIAL TRANSFORMATION DOMAIN
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
- Filing Date
- 2020-07-27
- Publication Date
- 2026-07-08
AI Technical Summary
Existing spatial sound recording and reproduction technologies require a high number of physical measurement locations and can introduce processing artifacts, especially in high-quality applications, when rendering sound from arbitrary perspectives.
A method and apparatus for processing a sound field representation using a spatial transform domain, applying a deviation from a defined reference point or listening orientation, utilizing a forward and backward transform rule, and optionally a spatial filter, to adjust the audio perspective without explicit calculation of virtual speaker signals, allowing for consistent spatial sound reproduction from different perspectives.
Enables efficient and artifact-free spatial sound reproduction from arbitrary perspectives by reducing the need for physical measurement locations and maintaining audio quality, suitable for applications like 6DoF rendering and 3DoF video adjustments.