A subband synthesis filtering apparatus for M sets of signals is provided. Each set of signals includes N subband sample signals. The apparatus includes a processor for processing the ith set of signals among the M sets of signals, wherein i is an integer index ranging from 0 to (M−1). The processor...http://www.google.de/patents/US7636660?utm_source=gb-gplus-sharePatent US7636660 - Subband synthesis filtering process and apparatus
