Patent ID: 9691406
Date: 2017-06-27
CPC Classifications: G10L,H04S

Claim:
1. A method for decoding a hierarchical audio bitstream, comprising steps of receiving and demultiplexing the hierarchical audio bitstream, wherein at least a 1 decoding the embedded surround sound bitstream to obtain a decoded surround sound bitstream, and decoding the 2 predicting sound components using the decoded surround sound bitstream and the first side information, the first side information comprising prediction block parameters, the predicted sound components being intermediate monaural audio signals resulting from a sound field analysis that identifies and extracts dominant sound sources, superposing the predicted sound components with decoded residual signals of the decoded 2 reconstructing Higher Order Ambisonics content by recomposing the reconstructed sound components and the second side information to Higher Order Ambisonics format, wherein reconstructed Higher Order Ambisonics content is obtained.