Patent ID: 8065136
Filing Date: 2011-11-22
Classification: G10L,H04S

Abstract:
1. An encoder for encoding an N-channel digital audio signal, where N>2, comprising at least a first left-hand digital audio signal component, a second right-hand digital audio signal component and a third digital audio signal component, the encoder comprising: a matrixing unit for receiving the first, second and third digital audio signal components and deriving therefrom at least a first composite digital audio signal and a second composite digital audio signal, the first composite digital audio signal being a linear combination of at least the first and third digital audio signal components, and the second composite digital audio signal being a linear combination of at least the second and third digital audio signal components; a prediction unit for deriving a prediction parameter signal from at least the first and second composite digital audio signals; and a signal combination unit for combining the first and second composite digital audio signals and the prediction parameter signal into a transmission signal.