DECODING DEVICE, CODING/DECODING DEVICE, AND DECODING METHOD

摘要

There existed no method for arranging the virtual sound source of an object signal obtained from the received object coding information in a listening space on the receiving point side. A decoding device comprises an object decoding section (806) for receiving a plurality of sets of sound coding information which have been subjected to object coding, and subjecting the received sets of sound coding information to object decoding to generate a plurality of object signals, and a rendering section (807) for arranging the position of the virtual sound source of each of the object signals generated by the object decoding in the listening space for each of the sound signals generated by combining the object signals, wherein priority information indicating the degree of priority relative to the sound signals is superimposed on the sound coding information, and wherein the rendering section (807) determines the size of regions allocated to the sound signals in the listening space in accordance with the degree of the priority indicated by the priority information, or the number of object signals included in the sound signals, and arranges each of the virtual sound sources of the object signals included in the sound signals in the regions.