APPARATUS, METHOD AND COMPUTER PROGRAM FOR GENERATING A WIDEBAND SIGNAL USING GUIDED BANDWIDTH EXTENSION AND BLIND BANDWIDTH EXTENSION

摘要

An apparatus, method and computer program for generating a wideband signal using a lowband input signal comprises a processor (23) for performing a guided bandwidth extension operation using transmitted parameters and a blind bandwidth extension operation only using derived parameters rather than transmitted parameters. To this end, the processor comprises a parameter generator (24) for generating the parameters for the blind bandwidth extension operation.