HOA HOA HOA HOA METHOD FOR COMPRESSING A HIGHER ORDER AMBISONICSHOA SIGNAL METHOD FOR DECOMPRESSING A COMPRESSED HOA SIGNAL APPARATUS FOR COMPRESSING A HOA SIGNAL AND APPARATUS FOR DECOMPRESSING A COMPRESSED HOA SIGNAL

摘要

Input time frames of HOA coefficient sequences ( A method of compressing the HOA signal, which is an input HOA representation with ), includes spatial HOA encoding of input temporal frames, followed by perceptual encoding and source encoding. Each input time frame contains dominant sound signals ( ) Of the frame and surrounding HOA components ( ) Is decomposed into a frame of (802). Peripheral HOA components ( ) Is the input HOA representation in the lower positions in the layered mode ( ) Of the first HOA coefficient sequences, and the second HOA coefficient sequences in the remaining upper positions ( ). The second HOA coefficient sequences are part of the HOA representation of the residual between the input HOA representation and the HOA representation of the dominant sound signals.