PublicaHier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
CONCEPT FOR BRIDGING THE GAP BETWEEN PARAMETRIC MULTI-CHANNEL AUDIO CODING AND MATRIXED-SURROUND MULTI-CHANNEL CODING
|US 20050701001 P: 20050719|
|WO 2006EP05971 A: 20060621|
|WO 2007009548 A1: 20070125|
|Patent, Elektronische Publikation |
|Fraunhofer IIS ()|
The purpose of the invention is to bridge the gap between pa-rametric multi-channel audio coding and matrixed-surround multi-channel coding by gradually improving the sound of an up-mix signal while raising the bit-rate consumed by the side-information starting from 0 up to the bit-rates of the parametric methods. More specifically, it provides a method of flexibly choosing an "operating point" somewhere between matrixed-surround (no side-information, limited audio qual-ity) and fully parametric reconstruction (full side-information rate required, good quality). This operating point can be chosen dynamically (i.e. varying over time) and in response to the permissible side-information rate, as it is dictated by the individual application.