Patent ID: 8391513
Filing Date: 2013-03-05
Classification: G10L,H04L,H04M

Abstract:
1. A stream synthesizing device which connects a plurality of input-output destinations, the stream synthesizing device comprising: an input unit configured to input, from the plurality of input-output destinations, at least two coded signals, each of the at least two coded signals including (i) a first downmix acoustic signal obtained by coding an acoustic signal into which at least two sound signals are downmixed and (ii) an extended signal for obtaining the at least two sound signals out of the first downmix acoustic signal; a coded signal generating unit configured to an output unit configured to output the generated coded signal to the plurality of input-output destinations, wherein said coded signal generating unit is configured to calculate an aggregate number of the at least two sound signals included in each of the at least two coded signals inputted by said input unit, and to include the calculated aggregate number in the coded signal to be generated.