Patent ID: 9113281
Filing Date: 2015-08-18
Classification: H04S

Abstract:
1. A method of reconstructing a recorded sound field, the method including analysing recorded data in a sparse domain using one of a time domain technique and a frequency domain technique and, when using a frequency domain technique transforming the set of signals, s conducting a plane-wave analysis of the recorded sound field to produce a vector of frequency domain plane-wave amplitudes, g where: T s ε and, when using a time domain technique, analysing the recorded sound field by convolving s and conducting plane-wave analysis of the recorded sound field according to a set of basis Mane-waves to produce a set of lane-wave signals g where Y ε obtaining plane-wave signals and their associated source directions generated from the selected technique to enable the recorded sound field to be reconstructed; and playing back the reconstructed, recorded sound field over one of loudspeakers and headphones.